d2/d3b/pins___b_i_g_t_r_e_e___s_k_r___v1_81_8h_source.html

/**

 * 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/>.

 *

 */

#pragma once


#ifndef TARGET_LPC1768

  #error "Oops! Make sure you have the LPC1768 environment selected in your IDE."

#endif


#define BOARD_INFO_NAME "BIGTREE SKR 1.1"


//

// 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


#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 HAS_SPI_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