SPI Emulated DOGM (like FSMC_GRAPHICAL_TFT, but SPI) (#18817)

Marlin/Configuration.h

@@ -2157,6 +2157,12 @@
 //#define FSMC_GRAPHICAL_TFT
 
 //
+// SPI display (MKS Robin Nano V2.0, MKS Gen L V2.0)
+// Upscaled 128x64 Marlin UI
+//
+//#define SPI_GRAPHICAL_TFT
+
+//
 // TFT LVGL UI
 //
 // Using default MKS icons and fonts from: https://git.io/JJvzK
@@ -2189,10 +2195,10 @@
   #define BUTTON_DELAY_EDIT  50 // (ms) Button repeat delay for edit screens
   #define BUTTON_DELAY_MENU 250 // (ms) Button repeat delay for menus
 
-  #define XPT2046_X_CALIBRATION   12316
-  #define XPT2046_Y_CALIBRATION  -8981
-  #define XPT2046_X_OFFSET       -43
-  #define XPT2046_Y_OFFSET        257
+  //#define XPT2046_X_CALIBRATION 12316
+  //#define XPT2046_Y_CALIBRATION -8981
+  //#define XPT2046_X_OFFSET        -43
+  //#define XPT2046_Y_OFFSET        257
 #endif
 
 //

Marlin/Configuration_adv.h

@@ -1509,9 +1509,10 @@
 #endif
 
 //
-// FSMC Graphical TFT
+// FSMC / SPI Graphical TFT
 //
-#if ENABLED(FSMC_GRAPHICAL_TFT)
+#if TFT_SCALED_DOGLCD
+  //#define GRAPHICAL_TFT_ROTATE_180
   //#define TFT_MARLINUI_COLOR 0xFFFF // White
   //#define TFT_MARLINBG_COLOR 0x0000 // Black
   //#define TFT_DISABLED_COLOR 0x0003 // Almost black

Marlin/src/HAL/STM32F1/SPI.h

@@ -208,6 +208,8 @@ public:
    */
   void setDataSize(uint32_t ds);
 
+  uint32_t getDataSize() { return _currentSetting->dataSize; }
+
   /* Victor Perez 2017. Added to set and clear callback functions for callback
    * on DMA transfer completion.
    * onReceive used to set the callback in case of dmaTransfer (tx/rx), once rx is completed

Marlin/src/HAL/STM32F1/dogm/u8g_com_stm32duino_hwspi.cpp

@@ -0,0 +1,236 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#ifdef __STM32F1__
+
+#include "../../../inc/MarlinConfig.h"
+
+#if BOTH(HAS_GRAPHICAL_LCD, SPI_GRAPHICAL_TFT) && DISABLED(FORCE_SOFT_SPI)
+
+#include "../HAL.h"
+#include <U8glib.h>
+#include <SPI.h>
+
+#define SPI_TFT_CS_H  OUT_WRITE(SPI_TFT_CS_PIN, HIGH)
+#define SPI_TFT_CS_L  OUT_WRITE(SPI_TFT_CS_PIN, LOW)
+
+#define SPI_TFT_DC_H  OUT_WRITE(SPI_TFT_DC_PIN, HIGH)
+#define SPI_TFT_DC_L  OUT_WRITE(SPI_TFT_DC_PIN, LOW)
+
+#define SPI_TFT_RST_H OUT_WRITE(SPI_TFT_RST_PIN, HIGH)
+#define SPI_TFT_RST_L OUT_WRITE(SPI_TFT_RST_PIN, LOW)
+
+#define SPI_TFT_BLK_H OUT_WRITE(LCD_BACKLIGHT_PIN, HIGH)
+#define SPI_TFT_BLK_L OUT_WRITE(LCD_BACKLIGHT_PIN, LOW)
+
+void LCD_IO_Init(uint8_t cs, uint8_t rs);
+void LCD_IO_WriteData(uint16_t RegValue);
+void LCD_IO_WriteReg(uint16_t Reg);
+uint16_t LCD_IO_ReadData(uint16_t RegValue);
+uint32_t LCD_IO_ReadData(uint16_t RegValue, uint8_t ReadSize);
+#ifdef LCD_USE_DMA_SPI
+  void LCD_IO_WriteMultiple(uint16_t data, uint32_t count);
+  void LCD_IO_WriteSequence(uint16_t *data, uint16_t length);
+#endif
+
+void LCD_WR_REG(uint8_t cmd) {
+  SPI_TFT_CS_L;
+  SPI_TFT_DC_L;
+  SPI.send(cmd);
+  SPI_TFT_CS_H;
+}
+void LCD_WR_DATA(uint8_t data) {
+  SPI_TFT_CS_L;
+  SPI_TFT_DC_H;
+  SPI.send(data);
+  SPI_TFT_CS_H;
+}
+
+void spi1Init(uint8_t spiRate) {
+  SPI_TFT_CS_H;
+
+  /**
+   * STM32F1 APB2 = 72MHz, APB1 = 36MHz, max SPI speed of this MCU if 18Mhz
+   * STM32F1 has 3 SPI ports, SPI1 in APB2, SPI2/SPI3 in APB1
+   * so the minimum prescale of SPI1 is DIV4, SPI2/SPI3 is DIV2
+   */
+  uint8_t clock;
+  switch (spiRate) {
+    case SPI_FULL_SPEED:    clock = SPI_CLOCK_DIV4;  break;
+    case SPI_HALF_SPEED:    clock = SPI_CLOCK_DIV4; break;
+    case SPI_QUARTER_SPEED: clock = SPI_CLOCK_DIV8; break;
+    case SPI_EIGHTH_SPEED:  clock = SPI_CLOCK_DIV16; break;
+    case SPI_SPEED_5:       clock = SPI_CLOCK_DIV32; break;
+    case SPI_SPEED_6:       clock = SPI_CLOCK_DIV64; break;
+    default:                clock = SPI_CLOCK_DIV2;        // Default from the SPI library
+  }
+  SPI.setModule(1);
+  SPI.begin();
+  SPI.setClockDivider(clock);
+  SPI.setBitOrder(MSBFIRST);
+  SPI.setDataMode(SPI_MODE0);
+}
+
+void LCD_IO_Init(uint8_t cs, uint8_t rs) {
+  spi1Init(SPI_FULL_SPEED);
+}
+
+void LCD_IO_WriteData(uint16_t RegValue) {
+  LCD_WR_DATA(RegValue);
+}
+
+void LCD_IO_WriteReg(uint16_t Reg) {
+  LCD_WR_REG(Reg);
+}
+
+uint16_t LCD_IO_ReadData(uint16_t RegValue) {
+  uint16_t d = 0;
+  SPI_TFT_CS_L;
+
+  SPI_TFT_DC_L;
+  SPI.send(RegValue);
+  SPI_TFT_DC_H;
+
+  SPI.read((uint8_t*)&d, 1); //dummy read
+  SPI.read((uint8_t*)&d, 1);
+
+  SPI_TFT_CS_H;
+  return d >> 7;
+}
+
+uint32_t LCD_IO_ReadData(uint16_t RegValue, uint8_t ReadSize) {
+  uint32_t data = 0;
+  uint8_t d = 0;
+  SPI_TFT_CS_L;
+
+  SPI_TFT_DC_L;
+  SPI.send(RegValue);
+  SPI_TFT_DC_H;
+
+  SPI.read((uint8_t*)&d, 1); //dummy read
+  SPI.read((uint8_t*)&d, 1);
+  data = d;
+  while (--ReadSize) {
+    data <<= 8;
+    SPI.read((uint8_t*)&d, 1);
+    data |= (d & 0xFF);
+  }
+
+  SPI_TFT_CS_H;
+  return uint32_t(data >> 7);
+}
+
+#ifdef LCD_USE_DMA_SPI
+  void LCD_IO_WriteMultiple(uint16_t data, uint32_t count) {
+    if (SPI.getDataSize() == DATA_SIZE_8BIT) {
+      count *= 2;
+    }
+    while (count > 0) {
+      SPI_TFT_CS_L;
+      SPI_TFT_DC_H;
+      SPI.dmaSend(&data, 1, true);
+      SPI_TFT_CS_H;
+      count--;
+    }
+  }
+
+  void LCD_IO_WriteSequence(uint16_t *data, uint16_t length) {
+    if (SPI.getDataSize() == DATA_SIZE_8BIT) {
+      length *= 2;
+    }
+    SPI_TFT_CS_L;
+    SPI_TFT_DC_H;
+    SPI.dmaSend(data, length, true);
+    SPI_TFT_CS_H;
+  }
+
+  void LCD_IO_WriteSequence_Async(uint16_t *data, uint16_t length) {
+    if (SPI.getDataSize() == DATA_SIZE_8BIT) {
+      length *= 2;
+    }
+    SPI_TFT_CS_L;
+    SPI_TFT_DC_H;
+    SPI.dmaSendAsync(data, length, true);
+    SPI_TFT_CS_H;
+  }
+
+  void LCD_IO_WaitSequence_Async() {
+    SPI_TFT_CS_L;
+    SPI_TFT_DC_H;
+    SPI.dmaSendAsync(NULL, 0, true);
+    SPI_TFT_CS_H;
+  }
+#endif
+
+static uint8_t msgInitCount = 2; // Ignore all messages until 2nd U8G_COM_MSG_INIT
+
+#ifndef LCD_READ_ID
+  #define LCD_READ_ID 0x04   // Read display identification information (0xD3 on ILI9341)
+#endif
+
+uint8_t u8g_com_stm32duino_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  if (msgInitCount) {
+    if (msg == U8G_COM_MSG_INIT) msgInitCount--;
+    if (msgInitCount) return -1;
+  }
+
+  static uint8_t isCommand;
+
+  LCD_IO_Init(-1, -1);
+
+  switch (msg) {
+    case U8G_COM_MSG_STOP: break;
+    case U8G_COM_MSG_INIT:
+      u8g_SetPIOutput(u8g, U8G_PI_RESET);
+
+      u8g_Delay(50);
+
+      if (arg_ptr) {
+        spi1Init(SPI_EIGHTH_SPEED);
+        *((uint32_t *)arg_ptr) = (LCD_READ_ID << 24) | LCD_IO_ReadData(LCD_READ_ID, 3);
+        spi1Init(SPI_FULL_SPEED);
+      }
+      isCommand = 0;
+      break;
+
+    case U8G_COM_MSG_ADDRESS: // define cmd (arg_val = 0) or data mode (arg_val = 1)
+      isCommand = arg_val == 0 ? 1 : 0;
+      break;
+
+    case U8G_COM_MSG_RESET:
+      u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      if (isCommand)
+        LCD_IO_WriteReg(arg_val);
+      else
+        LCD_IO_WriteData((uint16_t)arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ:
+      for (uint8_t i = 0; i < arg_val; i += 2)
+        LCD_IO_WriteData(*(uint16_t *)(((uint32_t)arg_ptr) + i));
+      break;
+
+  }
+  return 1;
+}
+
+#endif // HAS_GRAPHICAL_LCD
+#endif // STM32F1

Marlin/src/feature/touch/xpt2046.cpp

@@ -23,10 +23,14 @@
 
 #include "xpt2046.h"
 #include "../../inc/MarlinConfig.h"
-#if ENABLED(FSMC_GRAPHICAL_TFT)
+
+#if TFT_SCALED_DOGLCD
   #include "../../lcd/dogm/ultralcd_DOGM.h" // for LCD_FULL_PIXEL_WIDTH, etc.
 #endif
 
+#ifndef XPT2046_Z1_THRESHOLD
+  #define XPT2046_Z1_THRESHOLD 10
+#endif
 
 /*
  * Draw and Touch processing
@@ -117,10 +121,15 @@ uint8_t XPT2046::read_buttons() {
     // We rely on XPT2046 compatible mode to ADS7843, hence no Z1 and Z2 measurements possible.
 
     if (!isTouched()) return 0;
-    const uint16_t x = uint16_t(((uint32_t(getInTouch(XPT2046_X))) * tsoffsets[0]) >> 16) + tsoffsets[1],
-                  y = uint16_t(((uint32_t(getInTouch(XPT2046_Y))) * tsoffsets[2]) >> 16) + tsoffsets[3];
+    uint16_t x = uint16_t(((uint32_t(getInTouch(XPT2046_X))) * tsoffsets[0]) >> 16) + tsoffsets[1],
+             y = uint16_t(((uint32_t(getInTouch(XPT2046_Y))) * tsoffsets[2]) >> 16) + tsoffsets[3];
     if (!isTouched()) return 0; // Fingers must still be on the TS for a valid read.
 
+    #if ENABLED(GRAPHICAL_TFT_ROTATE_180)
+      x = TOUCH_SCREEN_WIDTH - x;
+      y = TOUCH_SCREEN_HEIGHT - y;
+    #endif
+
     // Touch within the button area simulates an encoder button
     if (y > BUTTON_AREA_TOP && y < BUTTON_AREA_BOT)
       return WITHIN(x,  14,  77) ? EN_D
@@ -151,30 +160,69 @@ bool XPT2046::isTouched() {
   );
 }
 
+#if ENABLED(TOUCH_BUTTONS_HW_SPI)
+  #include <SPI.h>
+
+  static void touch_spi_init(uint8_t spiRate) {
+    /**
+     * STM32F1 APB2 = 72MHz, APB1 = 36MHz, max SPI speed of this MCU if 18Mhz
+     * STM32F1 has 3 SPI ports, SPI1 in APB2, SPI2/SPI3 in APB1
+     * so the minimum prescale of SPI1 is DIV4, SPI2/SPI3 is DIV2
+     */
+    uint8_t clock;
+    switch (spiRate) {
+      case SPI_FULL_SPEED:    clock = SPI_CLOCK_DIV4;  break;
+      case SPI_HALF_SPEED:    clock = SPI_CLOCK_DIV4; break;
+      case SPI_QUARTER_SPEED: clock = SPI_CLOCK_DIV8; break;
+      case SPI_EIGHTH_SPEED:  clock = SPI_CLOCK_DIV16; break;
+      case SPI_SPEED_5:       clock = SPI_CLOCK_DIV32; break;
+      case SPI_SPEED_6:       clock = SPI_CLOCK_DIV64; break;
+      default:                clock = SPI_CLOCK_DIV2;        // Default from the SPI library
+    }
+    SPI.setModule(TOUCH_BUTTONS_HW_SPI_DEVICE);
+    SPI.begin();
+    SPI.setClockDivider(clock);
+    SPI.setBitOrder(MSBFIRST);
+    SPI.setDataMode(SPI_MODE0);
+  }
+#endif // TOUCH_BUTTONS_HW_SPI
+
 uint16_t XPT2046::getInTouch(const XPTCoordinate coordinate) {
   uint16_t data[3];
+  const uint8_t coord = uint8_t(coordinate) | XPT2046_CONTROL | XPT2046_DFR_MODE;
 
-  OUT_WRITE(TOUCH_CS_PIN, LOW);
+  #if ENABLED(TOUCH_BUTTONS_HW_SPI)
 
-  const uint8_t coord = uint8_t(coordinate) | XPT2046_CONTROL | XPT2046_DFR_MODE;
-  for (uint16_t i = 0; i < 3 ; i++) {
-    for (uint8_t j = 0x80; j; j >>= 1) {
-      WRITE(TOUCH_SCK_PIN, LOW);
-      WRITE(TOUCH_MOSI_PIN, bool(coord & j));
-      WRITE(TOUCH_SCK_PIN, HIGH);
+    touch_spi_init(SPI_SPEED_6);
+    for (uint16_t i = 0; i < 3; i++) {
+      OUT_WRITE(TOUCH_CS_PIN, LOW);
+      SPI.transfer(coord);
+      data[i] = (((SPI.transfer(0xFF) << 8) | SPI.transfer(0xFF)) >> 3) & 0x0FFF;
+      WRITE(TOUCH_CS_PIN, HIGH);
     }
 
-    data[i] = 0;
-    for (uint16_t j = 0x8000; j; j >>= 1) {
+  #else // !TOUCH_BUTTONS_HW_SPI
+
+    OUT_WRITE(TOUCH_CS_PIN, LOW);
+    for (uint16_t i = 0; i < 3; i++) {
+      for (uint8_t j = 0x80; j; j >>= 1) {
+        WRITE(TOUCH_SCK_PIN, LOW);
+        WRITE(TOUCH_MOSI_PIN, bool(coord & j));
+        WRITE(TOUCH_SCK_PIN, HIGH);
+      }
+
+      data[i] = 0;
+      for (uint16_t j = 0x8000; j; j >>= 1) {
+        WRITE(TOUCH_SCK_PIN, LOW);
+        if (READ(TOUCH_MISO_PIN)) data[i] |= j;
+        WRITE(TOUCH_SCK_PIN, HIGH);
+      }
       WRITE(TOUCH_SCK_PIN, LOW);
-      if (READ(TOUCH_MISO_PIN)) data[i] |= j;
-      WRITE(TOUCH_SCK_PIN, HIGH);
+      data[i] >>= 4;
     }
-    WRITE(TOUCH_SCK_PIN, LOW);
-    data[i] >>= 4;
-  }
+    WRITE(TOUCH_CS_PIN, HIGH);
 
-  WRITE(TOUCH_CS_PIN, HIGH);
+  #endif // !TOUCH_BUTTONS_HW_SPI
 
   uint16_t delta01 = _MAX(data[0], data[1]) - _MIN(data[0], data[1]),
            delta02 = _MAX(data[0], data[2]) - _MIN(data[0], data[2]),

Marlin/src/feature/touch/xpt2046.h

@@ -34,10 +34,6 @@ enum XPTCoordinate : uint8_t {
   XPT2046_Z2 = 0x40
 };
 
-#ifndef XPT2046_Z1_THRESHOLD
-  #define XPT2046_Z1_THRESHOLD 10
-#endif
-
 class XPT2046 {
 public:
   static void init();

Marlin/src/inc/Conditionals_LCD.h

@@ -261,7 +261,11 @@
 #endif
 
 // FSMC/SPI TFT Panels
-#if ENABLED(FSMC_GRAPHICAL_TFT)
+#if EITHER(FSMC_GRAPHICAL_TFT, SPI_GRAPHICAL_TFT)
+  #define TFT_SCALED_DOGLCD 1
+#endif
+
+#if TFT_SCALED_DOGLCD
   #define DOGLCD
   #define IS_ULTIPANEL
   #define DELAYED_BACKLIGHT_INIT

Marlin/src/inc/Conditionals_post.h

@@ -373,7 +373,7 @@
 
 #endif
 
-#if EITHER(LCD_USE_DMA_FSMC, FSMC_GRAPHICAL_TFT) || !PIN_EXISTS(SD_DETECT)
+#if ANY(LCD_USE_DMA_FSMC, FSMC_GRAPHICAL_TFT, SPI_GRAPHICAL_TFT) || !PIN_EXISTS(SD_DETECT)
   #define NO_LCD_REINIT 1  // Suppress LCD re-initialization
 #endif
 

Marlin/src/inc/SanityCheck.h

@@ -451,8 +451,6 @@
   #error "MKS_ROBIN_TFT is now FSMC_GRAPHICAL_TFT. Please update your configuration."
 #elif defined(TFT_LVGL_UI)
   #error "TFT_LVGL_UI is now TFT_LVGL_UI_FSMC. Please update your configuration."
-#elif defined(SPI_GRAPHICAL_TFT)
-  #error "SPI_GRAPHICAL_TFT is now TFT_LVGL_UI_SPI. Please update your configuration."
 #elif defined(SDPOWER)
   #error "SDPOWER is now SDPOWER_PIN. Please update your configuration and/or pins."
 #elif defined(STRING_SPLASH_LINE1) || defined(STRING_SPLASH_LINE2)
@@ -3036,11 +3034,27 @@ static_assert(   _ARR_TEST(3,0) && _ARR_TEST(3,1) && _ARR_TEST(3,2)
 #endif
 
 /**
- * Sanity checks for stepper chunk support
+ * Stepper Chunk support
  */
-#if ENABLED(DIRECT_STEPPING)
-  #if ENABLED(LIN_ADVANCE)
-    #error "DIRECT_STEPPING is incompatible with LIN_ADVANCE. Enable in external planner if possible."
+#if BOTH(DIRECT_STEPPING, LIN_ADVANCE)
+  #error "DIRECT_STEPPING is incompatible with LIN_ADVANCE. Enable in external planner if possible."
+#endif
+
+/**
+ * Touch Buttons
+ */
+#if ENABLED(TOUCH_BUTTONS)
+  #ifndef XPT2046_X_CALIBRATION
+    #error "XPT2046_X_CALIBRATION must be defined with TOUCH_BUTTONS."
+  #endif
+  #ifndef XPT2046_Y_CALIBRATION
+    #error "XPT2046_Y_CALIBRATION must be defined with TOUCH_BUTTONS."
+  #endif
+  #ifndef XPT2046_X_OFFSET
+    #error "XPT2046_X_OFFSET must be defined with TOUCH_BUTTONS."
+  #endif
+  #ifndef XPT2046_Y_OFFSET
+    #error "XPT2046_Y_OFFSET must be defined with TOUCH_BUTTONS."
   #endif
 #endif
 

Marlin/src/lcd/dogm/HAL_LCD_com_defines.h

@@ -87,6 +87,11 @@
     #define U8G_COM_HAL_FSMC_FN       u8g_com_stm32duino_fsmc_fn
   #endif
 
+  #if ENABLED(SPI_GRAPHICAL_TFT)
+    uint8_t u8g_com_stm32duino_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+    #define U8G_COM_HAL_FSMC_FN       u8g_com_stm32duino_spi_fn
+  #endif
+
 #elif defined(TARGET_LPC1768)
 
   uint8_t u8g_com_HAL_LPC1768_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);

Marlin/src/lcd/dogm/u8g_dev_tft_320x240_upscale_from_128x64.cpp

@@ -57,14 +57,21 @@
 
 #include "../../inc/MarlinConfig.h"
 
-#if HAS_GRAPHICAL_LCD && PIN_EXISTS(FSMC_CS)
+#if HAS_GRAPHICAL_LCD && (PIN_EXISTS(FSMC_CS) || ENABLED(SPI_GRAPHICAL_TFT))
 
 #include "HAL_LCD_com_defines.h"
 #include "ultralcd_DOGM.h"
 
 #include <string.h>
 
-#ifdef LCD_USE_DMA_FSMC
+#if EITHER(LCD_USE_DMA_FSMC, LCD_USE_DMA_SPI)
+  #define HAS_LCD_IO 1
+#endif
+
+#if HAS_LCD_IO
+  extern void LCD_IO_Init(uint8_t cs, uint8_t rs);
+  extern uint16_t LCD_IO_ReadData(uint16_t Reg);
+  extern uint32_t LCD_IO_ReadData(uint16_t RegValue, uint8_t ReadSize);
   extern void LCD_IO_WriteReg(uint16_t Reg);
   extern void LCD_IO_WriteData(uint16_t RegValue);
   extern void LCD_IO_WriteSequence(uint16_t *data, uint16_t length);
@@ -148,46 +155,34 @@ static uint32_t lcd_id = 0;
 
 
 static void setWindow_ili9328(u8g_t *u8g, u8g_dev_t *dev, uint16_t Xmin, uint16_t Ymin, uint16_t Xmax, uint16_t Ymax) {
-  #ifdef LCD_USE_DMA_FSMC
-    LCD_IO_WriteReg(ILI9328_HASTART);
-    LCD_IO_WriteData(Ymin);
-    LCD_IO_WriteReg(ILI9328_HAEND);
-    LCD_IO_WriteData(Ymax);
-    LCD_IO_WriteReg(ILI9328_VASTART);
-    LCD_IO_WriteData(Xmin);
-    LCD_IO_WriteReg(ILI9328_VAEND);
-    LCD_IO_WriteData(Xmax);
-
-    LCD_IO_WriteReg(ILI9328_HASET);
-    LCD_IO_WriteData(Ymin);
-    LCD_IO_WriteReg(ILI9328_VASET);
-    LCD_IO_WriteData(Xmin);
-
-    LCD_IO_WriteReg(ILI9328_WRITE_RAM);
+  #if HAS_LCD_IO
+    #define IO_REG_DATA(R,D) do { LCD_IO_WriteReg(R); LCD_IO_WriteData(D); }while(0)
   #else
+    #define IO_REG_DATA(R,D) do { u8g_WriteByte(u8g, dev, R); u8g_WriteSequence(u8g, dev, 2, (uint8_t *)&D); }while(0)
+  #endif
+
+  #if NONE(LCD_USE_DMA_FSMC, LCD_USE_DMA_SPI)
     u8g_SetAddress(u8g, dev, 0);
+  #endif
 
-    u8g_WriteByte(u8g, dev, ILI9328_HASTART);
-    u8g_WriteSequence(u8g, dev, 2, (uint8_t *)&Ymin);
-    u8g_WriteByte(u8g, dev, ILI9328_HAEND);
-    u8g_WriteSequence(u8g, dev, 2, (uint8_t *)&Ymax);
-    u8g_WriteByte(u8g, dev, ILI9328_VASTART);
-    u8g_WriteSequence(u8g, dev, 2, (uint8_t *)&Xmin);
-    u8g_WriteByte(u8g, dev, ILI9328_VAEND);
-    u8g_WriteSequence(u8g, dev, 2, (uint8_t *)&Xmax);
+  IO_REG_DATA(ILI9328_HASTART, Ymin);
+  IO_REG_DATA(ILI9328_HAEND,   Ymax);
+  IO_REG_DATA(ILI9328_VASTART, Xmin);
+  IO_REG_DATA(ILI9328_VAEND,   Xmax);
 
-    u8g_WriteByte(u8g, dev, ILI9328_HASET);
-    u8g_WriteSequence(u8g, dev, 2, (uint8_t *)&Ymin);
-    u8g_WriteByte(u8g, dev, ILI9328_VASET);
-    u8g_WriteSequence(u8g, dev, 2, (uint8_t *)&Xmin);
+  IO_REG_DATA(ILI9328_HASET,   Ymin);
+  IO_REG_DATA(ILI9328_VASET,   Xmin);
 
+  #if HAS_LCD_IO
+    LCD_IO_WriteReg(ILI9328_WRITE_RAM);
+  #else
     u8g_WriteByte(u8g, dev, ILI9328_WRITE_RAM);
     u8g_SetAddress(u8g, dev, 1);
   #endif
 }
 
 static void setWindow_st7789v(u8g_t *u8g, u8g_dev_t *dev, uint16_t Xmin, uint16_t Ymin, uint16_t Xmax, uint16_t Ymax) {
-  #ifdef LCD_USE_DMA_FSMC
+  #if HAS_LCD_IO
     LCD_IO_WriteReg(ST7789V_CASET);
     LCD_IO_WriteData((Xmin >> 8) & 0xFF);
     LCD_IO_WriteData(Xmin & 0xFF);
@@ -227,7 +222,7 @@ void (*setWindow)(u8g_t *u8g, u8g_dev_t *dev, uint16_t Xmin, uint16_t Ymin, uint
 #define ESC_END         0xFFFF, 0x7FFF
 #define ESC_FFFF        0xFFFF, 0xFFFF
 
-#ifdef LCD_USE_DMA_FSMC
+#if HAS_LCD_IO
   void writeEscSequence(const uint16_t *sequence) {
     uint16_t data;
     for (;;) {
@@ -247,6 +242,7 @@ void (*setWindow)(u8g_t *u8g, u8g_dev_t *dev, uint16_t Xmin, uint16_t Ymin, uint
       }
     }
   }
+  #define WRITE_ESC_SEQUENCE(V) writeEscSequence(V)
 #else
   void writeEscSequence8(u8g_t *u8g, u8g_dev_t *dev, const uint16_t *sequence) {
     uint16_t data;
@@ -271,6 +267,8 @@ void (*setWindow)(u8g_t *u8g, u8g_dev_t *dev, uint16_t Xmin, uint16_t Ymin, uint
     }
   }
 
+  #define WRITE_ESC_SEQUENCE(V) writeEscSequence8(u8g, dev, V)
+
   void writeEscSequence16(u8g_t *u8g, u8g_dev_t *dev, const uint16_t *sequence) {
     uint16_t data;
     u8g_SetAddress(u8g, dev, 0);
@@ -381,6 +379,30 @@ static const uint16_t ili9341_init[] = {
   ESC_END
 };
 
+static const uint16_t st9677_init[] = {
+  ESC_REG(0x0010), ESC_DELAY(120),
+  ESC_REG(0x0001), ESC_DELAY(120),
+  ESC_REG(0x0011), ESC_DELAY(120),
+  ESC_REG(0x00F0), 0x00C3,
+  ESC_REG(0x00F0), 0x0096,
+  ESC_REG(0x0036), TERN(GRAPHICAL_TFT_ROTATE_180, 0x00E8, 0x0028),
+  ESC_REG(0x003A), 0x0055,
+  ESC_REG(0x00B4), 0x0001,
+  ESC_REG(0x00B7), 0x00C6,
+  ESC_REG(0x00E8), 0x0040, 0x008A, 0x0000, 0x0000, 0x0029, 0x0019, 0x00A5, 0x0033,
+  ESC_REG(0x00C1), 0x0006,
+  ESC_REG(0x00C2), 0x00A7,
+  ESC_REG(0x00C5), 0x0018,
+  ESC_REG(0x00E0), 0x00F0, 0x0009, 0x000B, 0x0006, 0x0004, 0x0015, 0x002F, 0x0054, 0x0042, 0x003C, 0x0017, 0x0014, 0x0018, 0x001B,
+  ESC_REG(0x00E1), 0x00F0, 0x0009, 0x000B, 0x0006, 0x0004, 0x0003, 0x002D, 0x0043, 0x0042, 0x003B, 0x0016, 0x0014, 0x0017, 0x001B,
+  ESC_REG(0x00F0), 0x003C,
+  ESC_REG(0x00F0), 0x0069, ESC_DELAY(120),
+  ESC_REG(0x0029),
+  ESC_REG(0x0011),
+  ESC_DELAY(100),
+  ESC_END
+};
+
 #if ENABLED(TOUCH_BUTTONS)
 
   static const uint8_t buttonD[] = {
@@ -560,7 +582,7 @@ static const uint16_t ili9341_init[] = {
           v = TFT_MARLINBG_COLOR;
         LOOP_L_N(n, FSMC_UPSCALE) buffer[k++] = v;
       }
-      #ifdef LCD_USE_DMA_FSMC
+      #if HAS_LCD_IO
         LOOP_S_L_N(n, 1, FSMC_UPSCALE)
           for (uint16_t l = 0; l < length * (FSMC_UPSCALE); l++)
             buffer[l + (length * (FSMC_UPSCALE) * n)] = buffer[l];
@@ -586,41 +608,39 @@ static uint8_t page;
 
 uint8_t u8g_dev_tft_320x240_upscale_from_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg) {
   u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
-  #ifdef LCD_USE_DMA_FSMC
+
+  #if ENABLED(SPI_GRAPHICAL_TFT)
+    LCD_IO_Init(-1, -1);
+  #endif
+
+  #if HAS_LCD_IO
     static uint16_t bufferA[WIDTH * sq(FSMC_UPSCALE)], bufferB[WIDTH * sq(FSMC_UPSCALE)];
     uint16_t* buffer = &bufferA[0];
-    bool allow_async = true;
+    bool allow_async = DISABLED(SPI_GRAPHICAL_TFT);
   #else
     uint16_t buffer[WIDTH*2]; // 16-bit RGB 565 pixel line buffer
   #endif
+
   switch (msg) {
     case U8G_DEV_MSG_INIT:
       dev->com_fn(u8g, U8G_COM_MSG_INIT, U8G_SPI_CLK_CYCLE_NONE, &lcd_id);
 
       switch (lcd_id & 0xFFFF) {
         case 0x8552:   // ST7789V
-          #ifdef LCD_USE_DMA_FSMC
-            writeEscSequence(st7789v_init);
-          #else
-            writeEscSequence8(u8g, dev, st7789v_init);
-          #endif
+          WRITE_ESC_SEQUENCE(st7789v_init);
           setWindow = setWindow_st7789v;
           break;
         case 0x9328:  // ILI9328
-          #ifdef LCD_USE_DMA_FSMC
-            writeEscSequence(ili9328_init);
-          #else
-            writeEscSequence16(u8g, dev, ili9328_init);
-          #endif
+          WRITE_ESC_SEQUENCE(ili9328_init);
           setWindow = setWindow_ili9328;
           break;
         case 0x9341:   // ILI9341
         case 0x8066:   // Anycubic / TronXY TFTs (480x320)
-          #ifdef LCD_USE_DMA_FSMC
-            writeEscSequence(ili9341_init);
-          #else
-            writeEscSequence8(u8g, dev, ili9341_init);
-          #endif
+          WRITE_ESC_SEQUENCE(ili9341_init);
+          setWindow = setWindow_st7789v;
+          break;
+        case 0x7796:
+          WRITE_ESC_SEQUENCE(TERN(HAS_LCD_IO, st9677_init, ili9341_init));
           setWindow = setWindow_st7789v;
           break;
         case 0x0404:  // No connected display on FSMC
@@ -630,10 +650,7 @@ uint8_t u8g_dev_tft_320x240_upscale_from_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, u
           lcd_id = 0;
           return 0;
         default:
-          if (lcd_id && 0xFF000000)
-            setWindow = setWindow_st7789v;
-          else
-            setWindow = setWindow_ili9328;
+          setWindow = (lcd_id & 0xFF000000) ? setWindow_st7789v : setWindow_ili9328;
           break;
       }
 
@@ -644,7 +661,7 @@ uint8_t u8g_dev_tft_320x240_upscale_from_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, u
 
       // Clear Screen
       setWindow(u8g, dev, 0, 0, LCD_FULL_PIXEL_WIDTH - 1, LCD_FULL_PIXEL_HEIGHT - 1);
-      #ifdef LCD_USE_DMA_FSMC
+      #if HAS_LCD_IO
         LCD_IO_WriteMultiple(TFT_MARLINBG_COLOR, LCD_FULL_PIXEL_WIDTH * LCD_FULL_PIXEL_HEIGHT);
       #else
         memset2(buffer, TFT_MARLINBG_COLOR, 160);
@@ -681,7 +698,7 @@ uint8_t u8g_dev_tft_320x240_upscale_from_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, u
 
       LOOP_L_N(y, PAGE_HEIGHT) {
         uint32_t k = 0;
-        #ifdef LCD_USE_DMA_FSMC
+        #if HAS_LCD_IO
           buffer = (y & 1) ? bufferB : bufferA;
         #endif
         for (uint16_t i = 0; i < (uint32_t)pb->width; i++) {
@@ -689,7 +706,7 @@ uint8_t u8g_dev_tft_320x240_upscale_from_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, u
           const uint16_t c = TEST(b, y) ? TFT_MARLINUI_COLOR : TFT_MARLINBG_COLOR;
           LOOP_L_N(n, FSMC_UPSCALE) buffer[k++] = c;
         }
-        #ifdef LCD_USE_DMA_FSMC
+        #if HAS_LCD_IO
           LOOP_S_L_N(n, 1, FSMC_UPSCALE)
             for (uint16_t l = 0; l < WIDTH * (FSMC_UPSCALE); l++)
               buffer[l + WIDTH * (FSMC_UPSCALE) * n] = buffer[l];

Marlin/src/lcd/dogm/ultralcd_DOGM.h

@@ -182,12 +182,16 @@
   #define U8G_CLASS U8GLIB_SH1106_128X64
   #define U8G_PARAM DOGLCD_SCK, DOGLCD_MOSI, DOGLCD_CS, LCD_PINS_DC, LCD_PINS_RS
 
-#elif ENABLED(FSMC_GRAPHICAL_TFT)
+#elif TFT_SCALED_DOGLCD
 
   // Unspecified 320x240 TFT pre-initialized by built-in bootloader
 
   #define U8G_CLASS U8GLIB_TFT_320X240_UPSCALE_FROM_128X64
-  #define U8G_PARAM FSMC_CS_PIN, FSMC_RS_PIN
+  #if ENABLED(FSMC_GRAPHICAL_TFT)
+    #define U8G_PARAM FSMC_CS_PIN, FSMC_RS_PIN
+  #else
+    #define U8G_PARAM -1, -1
+  #endif
 
 #else
 
@@ -210,18 +214,18 @@
 
 // LCD_FULL_PIXEL_WIDTH =
 // LCD_PIXEL_OFFSET_X + (LCD_PIXEL_WIDTH * 2) + LCD_PIXEL_OFFSET_X
-#if ENABLED(FSMC_GRAPHICAL_TFT)
+#if TFT_SCALED_DOGLCD
   #ifndef LCD_FULL_PIXEL_WIDTH
     #define LCD_FULL_PIXEL_WIDTH  320
   #endif
   #ifndef LCD_PIXEL_OFFSET_X
-    #define LCD_PIXEL_OFFSET_X    32
+    #define LCD_PIXEL_OFFSET_X     32
   #endif
   #ifndef LCD_FULL_PIXEL_HEIGHT
     #define LCD_FULL_PIXEL_HEIGHT 240
   #endif
   #ifndef LCD_PIXEL_OFFSET_Y
-    #define LCD_PIXEL_OFFSET_Y    32
+    #define LCD_PIXEL_OFFSET_Y     32
   #endif
 #endif
 

Marlin/src/pins/stm32f1/pins_CHITU3D_V5.h

@@ -112,10 +112,10 @@
 
 #if ENABLED(FSMC_GRAPHICAL_TFT)
   #define FSMC_UPSCALE 3
-  #define LCD_FULL_PIXEL_WIDTH 480
-  #define LCD_PIXEL_OFFSET_X 48
-  #define LCD_FULL_PIXEL_HEIGHT 320
-  #define LCD_PIXEL_OFFSET_Y 48
+  #define LCD_FULL_PIXEL_WIDTH               480
+  #define LCD_PIXEL_OFFSET_X                  48
+  #define LCD_FULL_PIXEL_HEIGHT              320
+  #define LCD_PIXEL_OFFSET_Y                  48
 
   #define LCD_RESET_PIN                     PF11
   #define LCD_BACKLIGHT_PIN                 PD13
@@ -135,10 +135,19 @@
     #define BUTTON_DELAY_EDIT 50                  // (ms) Button repeat delay for edit screens
     #define BUTTON_DELAY_MENU 250                 // (ms) Button repeat delay for menus
 
-    #define XPT2046_X_CALIBRATION  -12316
-    #define XPT2046_Y_CALIBRATION   8981
-    #define XPT2046_X_OFFSET        340
-    #define XPT2046_Y_OFFSET        -20
+    #ifndef XPT2046_X_CALIBRATION
+      #define XPT2046_X_CALIBRATION       -12316
+    #endif
+    #ifndef XPT2046_Y_CALIBRATION
+      #define XPT2046_Y_CALIBRATION         8981
+    #endif
+    #ifndef XPT2046_X_OFFSET
+      #define XPT2046_X_OFFSET               340
+    #endif
+    #ifndef XPT2046_Y_OFFSET
+      #define XPT2046_Y_OFFSET               -20
+    #endif
+
   #endif
 #endif
 

Marlin/src/pins/stm32f1/pins_CHITU3D_V6.h

@@ -118,10 +118,10 @@
 //
 #if ENABLED(FSMC_GRAPHICAL_TFT)
   #define FSMC_UPSCALE 3
-  #define LCD_FULL_PIXEL_WIDTH 480
-  #define LCD_PIXEL_OFFSET_X 48
-  #define LCD_FULL_PIXEL_HEIGHT 320
-  #define LCD_PIXEL_OFFSET_Y 48
+  #define LCD_FULL_PIXEL_WIDTH               480
+  #define LCD_PIXEL_OFFSET_X                  48
+  #define LCD_FULL_PIXEL_HEIGHT              320
+  #define LCD_PIXEL_OFFSET_Y                  48
 
   #define LCD_RESET_PIN                     PF11
   #define LCD_BACKLIGHT_PIN                 PD13
@@ -141,10 +141,18 @@
     #define BUTTON_DELAY_EDIT 50                  // (ms) Button repeat delay for edit screens
     #define BUTTON_DELAY_MENU 250                 // (ms) Button repeat delay for menus
 
-    #define XPT2046_X_CALIBRATION  -12316
-    #define XPT2046_Y_CALIBRATION   8981
-    #define XPT2046_X_OFFSET        340
-    #define XPT2046_Y_OFFSET        -20
+    #ifndef XPT2046_X_CALIBRATION
+      #define XPT2046_X_CALIBRATION       -12316
+    #endif
+    #ifndef XPT2046_Y_CALIBRATION
+      #define XPT2046_Y_CALIBRATION         8981
+    #endif
+    #ifndef XPT2046_X_OFFSET
+      #define XPT2046_X_OFFSET               340
+    #endif
+    #ifndef XPT2046_Y_OFFSET
+      #define XPT2046_Y_OFFSET               -20
+    #endif
   #endif
 #endif
 

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_NANO_V2.h

@@ -207,6 +207,13 @@
 #define MT_DET_2_PIN                        PE6
 #define MT_DET_PIN_INVERTING false
 
+#ifndef FIL_RUNOUT_PIN
+  #define FIL_RUNOUT_PIN            MT_DET_1_PIN
+#endif
+#ifndef FIL_RUNOUT2_PIN
+  #define FIL_RUNOUT2_PIN           MT_DET_2_PIN
+#endif
+
 #define WIFI_IO0_PIN                        PC13
 
 //
@@ -224,7 +231,9 @@
 //
 // LCD / Controller
 //
-#define BEEPER_PIN                          PC5
+#ifndef BEEPER_PIN
+  #define BEEPER_PIN                        PC5
+#endif
 
 /**
  * Note: MKS Robin TFT screens use various TFT controllers.
@@ -250,7 +259,6 @@
 
   #define BTN_EN1                           PE8
   #define BTN_EN2                           PE11
-  #define BEEPER_PIN                        PC5
   #define BTN_ENC                           PE13
 
 #elif ENABLED(TFT_LITTLE_VGL_UI)
@@ -269,16 +277,71 @@
 
 #if HAS_SPI_LCD
 
-  #define BEEPER_PIN                        PC5
-  #define BTN_ENC                           PE13
-  #define LCD_PINS_ENABLE                   PD13
-  #define LCD_PINS_RS                       PC6
-  #define BTN_EN1                           PE8
-  #define BTN_EN2                           PE11
-  #define LCD_BACKLIGHT_PIN                 -1
+  #if ENABLED(SPI_GRAPHICAL_TFT)                  // Emulated DOGM SPI
+    #define SPI_TFT_CS_PIN                  PD11
+    #define SPI_TFT_SCK_PIN                 PA5
+    #define SPI_TFT_MISO_PIN                PA6
+    #define SPI_TFT_MOSI_PIN                PA7
+    #define SPI_TFT_DC_PIN                  PD10
+    #define SPI_TFT_RST_PIN                 PC6
+
+    #define LCD_BACKLIGHT_PIN               PD13
+
+    #define LCD_READ_ID                     0xD3
+    #define LCD_USE_DMA_SPI
+
+    #define TOUCH_BUTTONS_HW_SPI
+    #define TOUCH_BUTTONS_HW_SPI_DEVICE     1
+
+    //#define TOUCH_BUTTONS
+    #if ENABLED(TOUCH_BUTTONS)
+      #define TOUCH_CS_PIN                  PE14  // SPI1_NSS
+      #define TOUCH_SCK_PIN                 PA5   // SPI1_SCK
+      #define TOUCH_MISO_PIN                PA6   // SPI1_MISO
+      #define TOUCH_MOSI_PIN                PA7   // SPI1_MOSI
+
+      #ifndef XPT2046_X_CALIBRATION
+        #define XPT2046_X_CALIBRATION      -5481
+      #endif
+      #ifndef XPT2046_Y_CALIBRATION
+        #define XPT2046_Y_CALIBRATION       4000
+      #endif
+      #ifndef XPT2046_X_OFFSET
+        #define XPT2046_X_OFFSET             343
+      #endif
+      #ifndef XPT2046_Y_OFFSET
+        #define XPT2046_Y_OFFSET               0
+      #endif
+    #endif
+
+    #ifndef FSMC_UPSCALE
+      #define FSMC_UPSCALE                     3
+    #endif
+    #ifndef LCD_FULL_PIXEL_WIDTH
+      #define LCD_FULL_PIXEL_WIDTH           480
+    #endif
+    #ifndef LCD_PIXEL_OFFSET_X
+      #define LCD_PIXEL_OFFSET_X              48
+    #endif
+    #ifndef LCD_FULL_PIXEL_HEIGHT
+      #define LCD_FULL_PIXEL_HEIGHT          320
+    #endif
+    #ifndef LCD_PIXEL_OFFSET_Y
+      #define LCD_PIXEL_OFFSET_Y              32
+    #endif
+
+    #define BTN_ENC                         PE13
+    #define BTN_EN1                         PE8
+    #define BTN_EN2                         PE11
+
+    #define LCD_PINS_ENABLE                 PD13
+    #define LCD_PINS_RS                     PC6
+
+  #elif ENABLED(MKS_MINI_12864)
+
+    // MKS MINI12864 and MKS LCD12864B
+    // If using MKS LCD12864A (Need to remove RPK2 resistor)
 
-  // MKS MINI12864 and MKS LCD12864B; If using MKS LCD12864A (Need to remove RPK2 resistor)
-  #if ENABLED(MKS_MINI_12864)
     #define LCD_BACKLIGHT_PIN               -1
     #define LCD_RESET_PIN                   -1
     #define DOGLCD_A0                       PD11
@@ -320,3 +383,7 @@
   #define W25QXX_MISO_PIN                   PB14
   #define W25QXX_SCK_PIN                    PB13
 #endif
+
+#if ENABLED(SPEAKER) && BEEPER_PIN == PC5
+  #error "MKS Robin nano default BEEPER_PIN is not a SPEAKER."
+#endif