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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
#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
/**
* 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 P3_26
#endif
#define SD_DETECT_PIN P1_31
#elif HAS_WIRED_LCD
#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 // 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
#if SD_CONNECTION_IS(LCD)
#define SD_SS_PIN P1_23
#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 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
#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)
#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
// Include common SKR pins
#include "pins_BTT_SKR_common.h"
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