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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 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 <https://www.gnu.org/licenses/>.
- *
- */
- #pragma once
-
- /**
- * BigTreeTech SKR 1.1 pin assignments
- */
-
- #define BOARD_INFO_NAME "BTT SKR V1.1"
-
- //
- // 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
-
-
- /** ------ ------
- * 1.30 | 1 2 | 2.11 0.17 | 1 2 | 0.15
- * 0.18 | 3 4 | 0.16 3.26 | 3 4 | 1.23
- * 0.15 5 6 | -- 3.25 5 6 | 0.18
- * -- | 7 8 | -- 1.31 | 7 8 | RESET
- * GND | 9 10 | 5V GND | 9 10 | --
- * ------ ------
- * EXP1 EXP2
- */
- #define EXP1_01_PIN P1_30
- #define EXP1_02_PIN P2_11
- #define EXP1_03_PIN P0_18
- #define EXP1_04_PIN P0_16
- #define EXP1_05_PIN P0_15
- #define EXP1_06_PIN -1 // NC
- #define EXP1_07_PIN -1 // NC
- #define EXP1_08_PIN -1 // NC
-
- #define EXP2_01_PIN P0_17
- #define EXP2_02_PIN P0_15
- #define EXP2_03_PIN P3_26
- #define EXP2_04_PIN P1_23
- #define EXP2_05_PIN P3_25
- #define EXP2_06_PIN P0_18
- #define EXP2_07_PIN P1_31
- #define EXP2_08_PIN -1 // RESET
-
- /**
- * 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 IS_TFTGLCD_PANEL
-
- #if ENABLED(TFTGLCD_PANEL_SPI)
- #define TFTGLCD_CS EXP2_03_PIN
- #endif
-
- #elif HAS_WIRED_LCD
-
- #define BTN_EN1 EXP2_03_PIN
- #define BTN_EN2 EXP2_05_PIN
- #define BTN_ENC EXP1_02_PIN
-
- #define LCD_SDSS EXP2_04_PIN
- #define LCD_PINS_RS EXP1_04_PIN
- #define LCD_PINS_ENABLE EXP2_06_PIN
- #define LCD_PINS_D4 EXP2_02_PIN
-
- #if ENABLED(MKS_MINI_12864)
- #define DOGLCD_CS P2_06
- #define DOGLCD_A0 EXP1_04_PIN
- #endif
-
- #endif // HAS_WIRED_LCD
-
- //
- // 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 ANY(MKS_MINI_12864, ENDER2_STOCKDISPLAY, IS_TFTGLCD_PANEL)
- #define SDCARD_CONNECTION LCD
- #else
- #define SDCARD_CONNECTION ONBOARD
- #endif
- #endif
-
- // Trinamic driver support
-
- #if HAS_TRINAMIC_CONFIG
- // 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 driver (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 EXP2_06_PIN
- #define TMC_SW_MISO EXP2_01_PIN
- // To minimize pin usage use the same clock pin as the display/SD card reader. (May generate LCD noise.)
- #define TMC_SW_SCK EXP2_02_PIN
- // 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
- #endif
-
- #if AXIS_DRIVER_TYPE_Y(TMC2130)
- #define Y_CS_PIN P2_00
- #undef Y_ENABLE_PIN
- #endif
-
- #if AXIS_DRIVER_TYPE_Z(TMC2130)
- #define Z_CS_PIN P0_19
- #undef Z_ENABLE_PIN
- #endif
-
- #if AXIS_DRIVER_TYPE_E0(TMC2130)
- #define E0_CS_PIN P2_12
- #undef E0_ENABLE_PIN
- #endif
-
- #if AXIS_DRIVER_TYPE_E1(TMC2130)
- #define E1_CS_PIN P0_10
- #undef E1_ENABLE_PIN
- #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)
- #define X_CS_PIN EXP2_04_PIN
- #define Y_CS_PIN EXP2_03_PIN
- #define Z_CS_PIN EXP1_02_PIN
- #define E0_CS_PIN EXP2_05_PIN
- #define E1_CS_PIN EXP2_07_PIN
- #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)
- #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 EXP2_07_PIN
- // We use LCD_SDSS pin for E1
- #undef LCD_SDSS
- #define LCD_SDSS -1
- #define E1_CS_PIN EXP2_04_PIN
- #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
-
- // Include common SKR pins
- #include "pins_BTT_SKR_common.h"
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