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- /**
- * Marlin 3D Printer Firmware
- * Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * 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
- * 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 <http://www.gnu.org/licenses/>.
- *
- */
-
- #ifndef TARGET_LPC1768
- #error "Oops! Make sure you have the LPC1768 environment selected in your IDE."
- #endif
-
- #ifndef BOARD_NAME
- #define BOARD_NAME "BIQU SKR V1.1"
- #endif
-
- //
- // Limit Switches
- //
- #define X_MIN_PIN P1_29
- #define X_MAX_PIN P1_28
- #define Y_MIN_PIN P1_27
- #define Y_MAX_PIN P1_26
- #define Z_MIN_PIN P1_25
- #define Z_MAX_PIN P1_24
-
- //
- // Steppers
- //
- #define X_STEP_PIN P0_04
- #define X_DIR_PIN P0_05
- #define X_ENABLE_PIN P4_28
-
- #define Y_STEP_PIN P2_01
- #define Y_DIR_PIN P2_02
- #define Y_ENABLE_PIN P2_00
-
- #define Z_STEP_PIN P0_20
- #define Z_DIR_PIN P0_21
- #define Z_ENABLE_PIN P0_19
-
- #define E0_STEP_PIN P0_11
- #define E0_DIR_PIN P2_13
- #define E0_ENABLE_PIN P2_12
-
- #define E1_STEP_PIN P0_01
- #define E1_DIR_PIN P0_00
- #define E1_ENABLE_PIN P0_10
-
- //
- // Temperature Sensors
- // 3.3V max when defined as an analog input
- //
- #define TEMP_BED_PIN 0 // Analog Input
- #define TEMP_0_PIN 1 // Analog Input
- #define TEMP_1_PIN 2 // Analog Input
-
- //
- // Heaters / Fans
- //
- #define HEATER_0_PIN P2_07
- #if HOTENDS == 1
- #define FAN1_PIN P2_04
- #else
- #define HEATER_1_PIN P2_04
- #endif
- #define FAN_PIN P2_03
- #define HEATER_BED_PIN P2_05
-
- /**
- * LCD / Controller
- *
- * As of 20 JAN 2019 only the REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER display has
- * been tested with these settings. It can be connected to the SKR using standard cables
- * via the EXP1 and EXP2 ports. Other displays may need a custom cable and/or changes to
- * the pins defined below.
- *
- * The SD card on the LCD controller uses the same SPI signals as the LCD, resulting in
- * garbage/lines on the LCD display during SD card access. The LCD code mitigates this
- * by redrawing the screen after SD card accesses.
- */
-
- #if ENABLED(ULTRA_LCD)
- #define BEEPER_PIN P1_30
- #define BTN_EN1 P3_26
- #define BTN_EN2 P3_25
- #define BTN_ENC P2_11
-
- #define SD_DETECT_PIN P1_31
- #define LCD_SDSS P1_23
- #define LCD_PINS_RS P0_16
- #define LCD_PINS_ENABLE P0_18
- #define LCD_PINS_D4 P0_15
-
- #if ENABLED(MKS_MINI_12864)
- #define DOGLCD_CS P2_06
- #define DOGLCD_A0 P0_16
- #endif
- #endif
-
- //
- // SD Support
- //
- // MKS_MINI_12864 strongly prefers the SD card on the display and
- // requires jumpers on the SKR V1.1 board as documented here:
- // https://www.facebook.com/groups/505736576548648/permalink/630639874058317/
- #ifndef SDCARD_CONNECTION
- #if ENABLED(MKS_MINI_12864)
- #define SDCARD_CONNECTION LCD
- #else
- #define SDCARD_CONNECTION ONBOARD
- #endif
- #endif
-
- #define ONBOARD_SD_CS_PIN P0_06 // Chip select for "System" SD card
-
- #if SD_CONNECTION_IS(LCD)
- #define SCK_PIN P0_15
- #define MISO_PIN P0_17
- #define MOSI_PIN P0_18
- #define SS_PIN P1_23
- #elif SD_CONNECTION_IS(ONBOARD)
- #undef SD_DETECT_PIN
- #define SD_DETECT_PIN P0_27
- #define SCK_PIN P0_07
- #define MISO_PIN P0_08
- #define MOSI_PIN P0_09
- #define SS_PIN ONBOARD_SD_CS_PIN
- #elif SD_CONNECTION_IS(CUSTOM_CABLE)
- #error "No custom SD drive cable defined for this board."
- #endif
-
- // Trinamic driver support
-
- #if HAS_TRINAMIC
- // Using TMC devices in intelligent mode requires extra connections to each device. Unfortunately
- // the SKR does not have many free pins (especially if a display is in use). The SPI-based devices
- // will require 3 connections (clock, mosi, miso), plus a chip select line (CS) for each driver.
- // The UART-based devices require 2 pis per deriver (one of which must be interrupt capable).
- // The same SPI pins can be shared with the display/SD card reader, meaning SPI-based devices are
- // probably a good choice for this board.
- //
- // SOFTWARE_DRIVER_ENABLE is a good option. It uses SPI to control the driver enable and allows the
- // hardware ENABLE pins for each driver to be repurposed as SPI chip select. To use this mode the
- // driver modules will probably need to be modified, removing the pin used for the enable line from
- // the module and wiring this connection directly to GND (as is the case for TMC2130).
- // Using this option and sharing all of the SPI pins allows 5 TMC2130 drivers to be used along with
- // a REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER without requiring the use of any extra pins.
- //
- // Other options will probably require the use of any free pins and the TFT serial port or a
- // different type of display (like the TFT), using the pins normally used for the display and encoder.
- // Unfortunately, tests show it's not possible to use endstop and thermistor pins for chip-select.
- // Sample settings are provided below, but only some have been tested.
- //
- // Another option is to share the enable and chip-select pins when using SPI. Several users have
- // reported that this works. However, it's unlikely that this configuration will allow SPI communi-
- // cation with the device when the drivers are active, meaning that some of the more advanced TMC
- // options may not be available.
-
- // When using any TMC SPI-based drivers, software SPI is used
- // because pins may be shared with the display or SD card.
- #define TMC_USE_SW_SPI
- #define TMC_SW_MOSI P0_18
- #define TMC_SW_MISO P0_17
- // To minimize pin usage use the same clock pin as the display/SD card reader. (May generate LCD noise.)
- #define TMC_SW_SCK P0_15
- // If pin 2_06 is unused, it can be used for the clock to avoid the LCD noise.
- //#define TMC_SW_SCK P2_06
-
- #if ENABLED(SOFTWARE_DRIVER_ENABLE)
-
- // Software enable allows the enable pins to be repurposed as chip-select pins.
- // Note: Requires the driver modules to be modified to always be enabled with the enable pin removed.
- #if AXIS_DRIVER_TYPE_X(TMC2130)
- #define X_CS_PIN P4_28
- #undef X_ENABLE_PIN
- #define X_ENABLE_PIN -1
- #endif
-
- #if AXIS_DRIVER_TYPE_Y(TMC2130)
- #define Y_CS_PIN P2_00
- #undef Y_ENABLE_PIN
- #define Y_ENABLE_PIN -1
- #endif
-
- #if AXIS_DRIVER_TYPE_Z(TMC2130)
- #define Z_CS_PIN P0_19
- #undef Z_ENABLE_PIN
- #define Z_ENABLE_PIN -1
- #endif
-
- #if AXIS_DRIVER_TYPE_E0(TMC2130)
- #define E0_CS_PIN P2_12
- #undef E0_ENABLE_PIN
- #define E0_ENABLE_PIN -1
- #endif
-
-
- #if AXIS_DRIVER_TYPE_E1(TMC2130)
- #define E1_CS_PIN P0_10
- #undef E1_ENABLE_PIN
- #define E1_ENABLE_PIN -1
- #endif
-
- #else // !SOFTWARE_DRIVER_ENABLE
-
- // A chip-select pin is needed for each driver.
-
- // EXAMPLES
-
- // Example 1: No LCD attached or a TFT style display using the AUX header RX/TX pins.
- // SDCARD_CONNECTION must not be 'LCD'. Nothing should be connected to EXP1/EXP2.
- //#define SKR_USE_LCD_PINS_FOR_CS
- #if ENABLED(SKR_USE_LCD_PINS_FOR_CS)
- #if SD_CONNECTION_IS(LCD)
- #error "SDCARD_CONNECTION must not be 'LCD' with SKR_USE_LCD_PINS_FOR_CS."
- #endif
- #define X_CS_PIN P1_23
- #define Y_CS_PIN P3_26
- #define Z_CS_PIN P2_11
- #define E0_CS_PIN P3_25
- #define E1_CS_PIN P1_31
- #endif
-
- // Example 2: A REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER
- // The SD card reader attached to the LCD (if present) can't be used because
- // the pins will be in use. So SDCARD_CONNECTION must not be 'LCD'.
- //#define SKR_USE_LCD_SD_CARD_PINS_FOR_CS
- #if ENABLED(SKR_USE_LCD_SD_CARD_PINS_FOR_CS)
- #if SD_CONNECTION_IS(LCD)
- #error "SDCARD_CONNECTION must not be 'LCD' with SKR_USE_LCD_SD_CARD_PINS_FOR_CS."
- #endif
- #define X_CS_PIN P0_02
- #define Y_CS_PIN P0_03
- #define Z_CS_PIN P2_06
- // We use SD_DETECT_PIN for E0
- #undef SD_DETECT_PIN
- #define E0_CS_PIN P1_31
- // We use LCD_SDSS pin for E1
- #undef LCD_SDSS
- #define LCD_SDSS -1
- #define E1_CS_PIN P1_23
- #endif
-
- // Example 3: Use the driver enable pins for chip-select.
- // Commands must not be sent to the drivers when enabled. So certain
- // advanced features (like driver monitoring) will not be available.
- //#define SKR_USE_ENABLE_CS
- #if ENABLED(SKR_USE_ENABLE_FOR_CS)
- #define X_CS_PIN X_ENABLE_PIN
- #define Y_CS_PIN Y_ENABLE_PIN
- #define Z_CS_PIN Z_ENABLE_PIN
- #define E0_CS_PIN E0_ENABLE_PIN
- #define E1_CS_PIN E1_ENABLE_PIN
- #endif
-
- #endif // SOFTWARE_DRIVER_ENABLE
-
- #endif
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