Update examples

config/examples/3DFabXYZ/Migbot/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/AlephObjects/TAZ4/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/AliExpress/UM2pExt/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Anet/A2/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Anet/A2plus/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Anet/A6/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Anet/A8/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Anet/A8plus/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Anet/E16/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/AnyCubic/i3/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/ArmEd/Configuration_adv.h

@@ -1736,7 +1736,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1778,7 +1777,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1804,7 +1803,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1822,7 +1821,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1845,7 +1844,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1857,7 +1856,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1865,9 +1864,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/BIBO/TouchX/cyclops/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/BIBO/TouchX/default/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/BQ/Hephestos/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/BQ/Hephestos_2/Configuration_adv.h

@@ -1740,7 +1740,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1782,7 +1781,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1808,7 +1807,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1826,7 +1825,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1849,7 +1848,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1861,7 +1860,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1869,9 +1868,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/BQ/WITBOX/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Cartesio/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Creality/CR-10/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Creality/CR-10S/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Creality/CR-10_5S/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Creality/CR-10mini/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Creality/CR-8/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Creality/Ender-2/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Creality/Ender-3/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Creality/Ender-4/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Creality/Ender-5/Configuration.h

@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
- * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

config/examples/Creality/Ender-5/Configuration_adv.h

@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
- * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -352,8 +352,11 @@
 #define E4_AUTO_FAN_PIN -1
 #define E5_AUTO_FAN_PIN -1
 #define CHAMBER_AUTO_FAN_PIN -1
+
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED 255   // 255 == full speed
+#define CHAMBER_AUTO_FAN_TEMPERATURE 30
+#define CHAMBER_AUTO_FAN_SPEED 255
 
 /**
  * Part-Cooling Fan Multiplexer
@@ -2118,36 +2121,38 @@
  *
  * See http://marlinfw.org/docs/configuration/laser_spindle.html for more config details.
  */
-//#define SPINDLE_LASER_ENABLE
-#if ENABLED(SPINDLE_LASER_ENABLE)
-
-  #define SPINDLE_LASER_ENABLE_INVERT   false  // Set to "true" if the on/off function is reversed
-  #define SPINDLE_LASER_PWM             true   // Set to true if your controller supports setting the speed/power
+//#define SPINDLE_FEATURE
+//#define LASER_FEATURE
+#if EITHER(SPINDLE_FEATURE, LASER_FEATURE)
+  #define SPINDLE_LASER_ACTIVE_HIGH     false  // Set to "true" if the on/off function is active HIGH
+  #define SPINDLE_LASER_PWM             true   // Set to "true" if your controller supports setting the speed/power
   #define SPINDLE_LASER_PWM_INVERT      true   // Set to "true" if the speed/power goes up when you want it to go slower
   #define SPINDLE_LASER_POWERUP_DELAY   5000   // (ms) Delay to allow the spindle/laser to come up to speed/power
   #define SPINDLE_LASER_POWERDOWN_DELAY 5000   // (ms) Delay to allow the spindle to stop
-  #define SPINDLE_DIR_CHANGE            true   // Set to true if your spindle controller supports changing spindle direction
-  #define SPINDLE_INVERT_DIR            false
-  #define SPINDLE_STOP_ON_DIR_CHANGE    true   // Set to true if Marlin should stop the spindle before changing rotation direction
-
-  /**
-   *  The M3 & M4 commands use the following equation to convert PWM duty cycle to speed/power
-   *
-   *  SPEED/POWER = PWM duty cycle * SPEED_POWER_SLOPE + SPEED_POWER_INTERCEPT
-   *    where PWM duty cycle varies from 0 to 255
-   *
-   *  set the following for your controller (ALL MUST BE SET)
-   */
 
-  #define SPEED_POWER_SLOPE    118.4
-  #define SPEED_POWER_INTERCEPT  0
-  #define SPEED_POWER_MIN     5000
-  #define SPEED_POWER_MAX    30000    // SuperPID router controller 0 - 30,000 RPM
+  #if ENABLED(SPINDLE_FEATURE)
+    //#define SPINDLE_CHANGE_DIR               // Enable if your spindle controller can change spindle direction
+    #define SPINDLE_CHANGE_DIR_STOP            // Enable if the spindle should stop before changing spin direction
+    #define SPINDLE_INVERT_DIR          false  // Set to "true" if the spin direction is reversed
 
-  //#define SPEED_POWER_SLOPE      0.3922
-  //#define SPEED_POWER_INTERCEPT  0
-  //#define SPEED_POWER_MIN       10
-  //#define SPEED_POWER_MAX      100      // 0-100%
+    /**
+     *  The M3 & M4 commands use the following equation to convert PWM duty cycle to speed/power
+     *
+     *  SPEED/POWER = PWM duty cycle * SPEED_POWER_SLOPE + SPEED_POWER_INTERCEPT
+     *    where PWM duty cycle varies from 0 to 255
+     *
+     *  set the following for your controller (ALL MUST BE SET)
+     */
+    #define SPEED_POWER_SLOPE    118.4
+    #define SPEED_POWER_INTERCEPT  0
+    #define SPEED_POWER_MIN     5000
+    #define SPEED_POWER_MAX    30000    // SuperPID router controller 0 - 30,000 RPM
+  #else
+    #define SPEED_POWER_SLOPE      0.3922
+    #define SPEED_POWER_INTERCEPT  0
+    #define SPEED_POWER_MIN       10
+    #define SPEED_POWER_MAX      100    // 0-100%
+  #endif
 #endif
 
 /**

config/examples/Dagoma/Disco Ultimate/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/EVNOVO (Artillery)/Sidewinder X1/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Einstart-S/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Felix/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/FlashForge/CreatorPro/Configuration_adv.h

@@ -1731,7 +1731,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1773,7 +1772,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1799,7 +1798,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1817,7 +1816,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1840,7 +1839,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1852,7 +1851,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1860,9 +1859,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/FolgerTech/i3-2020/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Formbot/Raptor/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Formbot/T_Rex_2+/Configuration_adv.h

@@ -1736,7 +1736,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1778,7 +1777,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1804,7 +1803,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1822,7 +1821,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1845,7 +1844,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1857,7 +1856,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1865,9 +1864,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Formbot/T_Rex_3/Configuration_adv.h

@@ -1736,7 +1736,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1778,7 +1777,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1804,7 +1803,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1822,7 +1821,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1845,7 +1844,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1857,7 +1856,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1865,9 +1864,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Geeetech/A10/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Geeetech/A10M/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Geeetech/A20M/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Geeetech/MeCreator2/Configuration_adv.h

@@ -1731,7 +1731,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1773,7 +1772,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1799,7 +1798,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1817,7 +1816,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1840,7 +1839,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1852,7 +1851,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1860,9 +1859,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Geeetech/Prusa i3 Pro C/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Geeetech/Prusa i3 Pro W/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Infitary/i3-M508/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/JGAurora/A1/Configuration_adv.h

@@ -1737,7 +1737,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1779,7 +1778,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1805,7 +1804,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1823,7 +1822,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1846,7 +1845,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1858,7 +1857,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1866,9 +1865,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/JGAurora/A5/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/JGAurora/A5S/Configuration_adv.h

@@ -1737,7 +1737,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1779,7 +1778,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1805,7 +1804,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1823,7 +1822,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1846,7 +1845,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1858,7 +1857,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1866,9 +1865,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/MakerParts/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Malyan/M150/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Malyan/M200/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Micromake/C1/enhanced/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Mks/Robin/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Mks/Sbase/Configuration_adv.h

@@ -1733,7 +1733,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1775,7 +1774,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1801,7 +1800,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1819,7 +1818,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1842,7 +1841,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1854,7 +1853,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1862,9 +1861,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/RapideLite/RL200/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/RigidBot/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/SCARA/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/STM32/Black_STM32F407VET6/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Sanguinololu/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/TheBorg/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/TinyBoy2/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Tronxy/X3A/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Tronxy/X5S-2E/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/UltiMachine/Archim1/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/UltiMachine/Archim2/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/VORONDesign/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Velleman/K8200/Configuration_adv.h

@@ -1745,7 +1745,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1787,7 +1786,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1813,7 +1812,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1831,7 +1830,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1854,7 +1853,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1866,7 +1865,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1874,9 +1873,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Velleman/K8400/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/WASP/PowerWASP/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/Wanhao/Duplicator 6/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/delta/Anycubic/Kossel/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/delta/FLSUN/kossel/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/delta/Geeetech/Rostock 301/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/delta/MKS/SBASE/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/delta/Tevo Little Monster/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/delta/generic/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/delta/kossel_mini/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/delta/kossel_xl/Configuration.h

@@ -946,40 +946,40 @@
   // 2 or 3 sets of coordinates for deploying and retracting the spring loaded touch probe on G29,
   // if servo actuated touch probe is not defined. Uncomment as appropriate for your printer/probe.
 
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_X 30.0
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_Y DELTA_PRINTABLE_RADIUS
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_Z 100.0
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_1_FEEDRATE XY_PROBE_SPEED
-
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_X 0.0
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_Y DELTA_PRINTABLE_RADIUS
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_Z 100.0
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_2_FEEDRATE (XY_PROBE_SPEED)/10
-
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_3_X Z_PROBE_ALLEN_KEY_DEPLOY_2_X * 0.75
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_3_Y Z_PROBE_ALLEN_KEY_DEPLOY_2_Y * 0.75
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_3_Z Z_PROBE_ALLEN_KEY_DEPLOY_2_Z
-  //#define Z_PROBE_ALLEN_KEY_DEPLOY_3_FEEDRATE XY_PROBE_SPEED
-
-  //#define Z_PROBE_ALLEN_KEY_STOW_1_X -64.0 // Move the probe into position
-  //#define Z_PROBE_ALLEN_KEY_STOW_1_Y 56.0
-  //#define Z_PROBE_ALLEN_KEY_STOW_1_Z 23.0
-  //#define Z_PROBE_ALLEN_KEY_STOW_1_FEEDRATE XY_PROBE_SPEED
-
-  //#define Z_PROBE_ALLEN_KEY_STOW_2_X -64.0 // Push it down
-  //#define Z_PROBE_ALLEN_KEY_STOW_2_Y 56.0
-  //#define Z_PROBE_ALLEN_KEY_STOW_2_Z 3.0
-  //#define Z_PROBE_ALLEN_KEY_STOW_2_FEEDRATE (XY_PROBE_SPEED)/10
-
-  //#define Z_PROBE_ALLEN_KEY_STOW_3_X -64.0 // Move it up to clear
-  //#define Z_PROBE_ALLEN_KEY_STOW_3_Y 56.0
-  //#define Z_PROBE_ALLEN_KEY_STOW_3_Z 50.0
-  //#define Z_PROBE_ALLEN_KEY_STOW_3_FEEDRATE XY_PROBE_SPEED
-
-  //#define Z_PROBE_ALLEN_KEY_STOW_4_X 0.0
-  //#define Z_PROBE_ALLEN_KEY_STOW_4_Y 0.0
-  //#define Z_PROBE_ALLEN_KEY_STOW_4_Z Z_PROBE_ALLEN_KEY_STOW_3_Z
-  //#define Z_PROBE_ALLEN_KEY_STOW_4_FEEDRATE XY_PROBE_SPEED
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_1_X 30.0
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_1_Y DELTA_PRINTABLE_RADIUS
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_1_Z 100.0
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_1_FEEDRATE XY_PROBE_SPEED
+
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_2_X 0.0
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_2_Y DELTA_PRINTABLE_RADIUS
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_2_Z 100.0
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_2_FEEDRATE (XY_PROBE_SPEED)/10
+
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_3_X Z_PROBE_ALLEN_KEY_DEPLOY_2_X * 0.75
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_3_Y Z_PROBE_ALLEN_KEY_DEPLOY_2_Y * 0.75
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_3_Z Z_PROBE_ALLEN_KEY_DEPLOY_2_Z
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_3_FEEDRATE XY_PROBE_SPEED
+
+  #define Z_PROBE_ALLEN_KEY_STOW_1_X -64.0 // Move the probe into position
+  #define Z_PROBE_ALLEN_KEY_STOW_1_Y 56.0
+  #define Z_PROBE_ALLEN_KEY_STOW_1_Z 23.0
+  #define Z_PROBE_ALLEN_KEY_STOW_1_FEEDRATE XY_PROBE_SPEED
+
+  #define Z_PROBE_ALLEN_KEY_STOW_2_X -64.0 // Push it down
+  #define Z_PROBE_ALLEN_KEY_STOW_2_Y 56.0
+  #define Z_PROBE_ALLEN_KEY_STOW_2_Z 3.0
+  #define Z_PROBE_ALLEN_KEY_STOW_2_FEEDRATE (XY_PROBE_SPEED)/10
+
+  #define Z_PROBE_ALLEN_KEY_STOW_3_X -64.0 // Move it up to clear
+  #define Z_PROBE_ALLEN_KEY_STOW_3_Y 56.0
+  #define Z_PROBE_ALLEN_KEY_STOW_3_Z 50.0
+  #define Z_PROBE_ALLEN_KEY_STOW_3_FEEDRATE XY_PROBE_SPEED
+
+  #define Z_PROBE_ALLEN_KEY_STOW_4_X 0.0
+  #define Z_PROBE_ALLEN_KEY_STOW_4_Y 0.0
+  #define Z_PROBE_ALLEN_KEY_STOW_4_Z Z_PROBE_ALLEN_KEY_STOW_3_Z
+  #define Z_PROBE_ALLEN_KEY_STOW_4_FEEDRATE XY_PROBE_SPEED
 
 #endif // Z_PROBE_ALLEN_KEY
 
@@ -1298,10 +1298,10 @@
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 
   // Set the boundaries for probing (where the probe can reach).
-  //#define LEFT_PROBE_BED_POSITION -(DELTA_PRINTABLE_RADIUS + MIN_PROBE_EDGE)
-  //#define RIGHT_PROBE_BED_POSITION DELTA_PRINTABLE_RADIUS - (MIN_PROBE_EDGE)
-  //#define FRONT_PROBE_BED_POSITION -(DELTA_PRINTABLE_RADIUS + MIN_PROBE_EDGE)
-  //#define BACK_PROBE_BED_POSITION DELTA_PRINTABLE_RADIUS - (MIN_PROBE_EDGE)
+  //#define LEFT_PROBE_BED_POSITION -(DELTA_PRINTABLE_RADIUS -(MIN_PROBE_EDGE))
+  //#define RIGHT_PROBE_BED_POSITION DELTA_PRINTABLE_RADIUS -(MIN_PROBE_EDGE)
+  //#define FRONT_PROBE_BED_POSITION -(DELTA_PRINTABLE_RADIUS -(MIN_PROBE_EDGE))
+  //#define BACK_PROBE_BED_POSITION DELTA_PRINTABLE_RADIUS -(MIN_PROBE_EDGE)
 
   // Probe along the Y axis, advancing X after each column
   //#define PROBE_Y_FIRST

config/examples/delta/kossel_xl/Configuration_adv.h

@@ -1734,7 +1734,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1776,7 +1775,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1802,7 +1801,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1820,7 +1819,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1843,7 +1842,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1855,7 +1854,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1863,9 +1862,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/gCreate/gMax1.5+/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/makibox/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/tvrrug/Round2/Configuration_adv.h

@@ -1732,7 +1732,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1774,7 +1773,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1800,7 +1799,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1818,7 +1817,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1841,7 +1840,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1853,7 +1852,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1861,9 +1860,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8

config/examples/wt150/Configuration_adv.h

@@ -1733,7 +1733,6 @@
   //#define E5_CS_PIN         -1
 
   /**
-   * Use software SPI for TMC2130.
    * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
    * The default SW SPI pins are defined the respective pins files,
    * but you can override or define them here.
@@ -1775,7 +1774,7 @@
   //#define SOFTWARE_DRIVER_ENABLE
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * Use Trinamic's ultra quiet stepping mode.
    * When disabled, Marlin will use spreadCycle stepping mode.
    */
@@ -1801,7 +1800,7 @@
 
   /**
    * Monitor Trinamic drivers for error conditions,
-   * like overtemperature and short to ground. TMC2208 requires hardware serial.
+   * like overtemperature and short to ground.
    * In the case of overtemperature Marlin can decrease the driver current until error condition clears.
    * Other detected conditions can be used to stop the current print.
    * Relevant g-codes:
@@ -1819,7 +1818,7 @@
   #endif
 
   /**
-   * TMC2130, TMC2160, TMC2208, TMC5130 and TMC5160 only
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
    * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
    * This mode allows for faster movements at the expense of higher noise levels.
    * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
@@ -1842,7 +1841,7 @@
   #define E5_HYBRID_THRESHOLD     30
 
   /**
-   * TMC2130, TMC2160, TMC2660, TMC5130, and TMC5160 only
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
    * Use StallGuard2 to sense an obstacle and trigger an endstop.
    * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
    * X, Y, and Z homing will always be done in spreadCycle mode.
@@ -1854,7 +1853,7 @@
    * It is advised to set X/Y/Z_HOME_BUMP_MM to 0.
    * M914 X/Y/Z to live tune the setting
    */
-  //#define SENSORLESS_HOMING // TMC2130 only
+  //#define SENSORLESS_HOMING // StallGuard capable drivers only
 
   /**
    * Use StallGuard2 to probe the bed with the nozzle.
@@ -1862,9 +1861,10 @@
    * CAUTION: This could cause damage to machines that use a lead screw or threaded rod
    *          to move the Z axis. Take extreme care when attempting to enable this feature.
    */
-  //#define SENSORLESS_PROBING // TMC2130 only
+  //#define SENSORLESS_PROBING // StallGuard capable drivers only
 
   #if EITHER(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
     #define X_STALL_SENSITIVITY  8
     #define Y_STALL_SENSITIVITY  8
     //#define Z_STALL_SENSITIVITY  8