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255 lines
9.9 KiB
255 lines
9.9 KiB
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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/**
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* BigTreeTech SKR 1.1 pin assignments
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*/
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#define BOARD_INFO_NAME "BTT SKR V1.1"
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//
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// Limit Switches
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//
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#define X_MIN_PIN P1_29
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#define X_MAX_PIN P1_28
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#define Y_MIN_PIN P1_27
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#define Y_MAX_PIN P1_26
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#define Z_MIN_PIN P1_25
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#define Z_MAX_PIN P1_24
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//
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// Steppers
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//
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#define X_STEP_PIN P0_04
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#define X_DIR_PIN P0_05
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#define X_ENABLE_PIN P4_28
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#define Y_STEP_PIN P2_01
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#define Y_DIR_PIN P2_02
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#define Y_ENABLE_PIN P2_00
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#define Z_STEP_PIN P0_20
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#define Z_DIR_PIN P0_21
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#define Z_ENABLE_PIN P0_19
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#define E0_STEP_PIN P0_11
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#define E0_DIR_PIN P2_13
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#define E0_ENABLE_PIN P2_12
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/** ------ ------
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* 1.30 |10 9 | 2.11 0.17 |10 9 | 0.15
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* 0.18 | 8 7 | 0.16 3.26 | 8 7 | 1.23
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* 0.15 6 5 | -- 3.25 6 5 | 0.18
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* -- | 4 3 | -- 1.31 | 4 3 | RESET
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* GND | 2 1 | 5V GND | 2 1 | --
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* ------ ------
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* EXP1 EXP2
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*/
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#define EXP1_03_PIN -1 // NC
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#define EXP1_04_PIN -1 // NC
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#define EXP1_05_PIN -1 // NC
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#define EXP1_06_PIN P0_15
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#define EXP1_07_PIN P0_16
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#define EXP1_08_PIN P0_18
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#define EXP1_09_PIN P2_11
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#define EXP1_10_PIN P1_30
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#define EXP2_03_PIN -1 // RESET
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#define EXP2_04_PIN P1_31
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#define EXP2_05_PIN P0_18
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#define EXP2_06_PIN P3_25
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#define EXP2_07_PIN P1_23
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#define EXP2_08_PIN P3_26
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#define EXP2_09_PIN P0_15
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#define EXP2_10_PIN P0_17
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/**
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* LCD / Controller
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*
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* As of 20 JAN 2019 only the REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER display has
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* been tested with these settings. It can be connected to the SKR using standard cables
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* via the EXP1 and EXP2 ports. Other displays may need a custom cable and/or changes to
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* the pins defined below.
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*
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* The SD card on the LCD controller uses the same SPI signals as the LCD, resulting in
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* garbage/lines on the LCD display during SD card access. The LCD code mitigates this
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* by redrawing the screen after SD card accesses.
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*/
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#if IS_TFTGLCD_PANEL
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#if ENABLED(TFTGLCD_PANEL_SPI)
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#define TFTGLCD_CS EXP2_08_PIN
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#endif
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#elif HAS_WIRED_LCD
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#define BTN_EN1 EXP2_08_PIN
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#define BTN_EN2 EXP2_06_PIN
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#define BTN_ENC EXP1_09_PIN
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#define LCD_SDSS EXP2_07_PIN
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#define LCD_PINS_RS EXP1_07_PIN
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#define LCD_PINS_ENABLE EXP2_05_PIN
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#define LCD_PINS_D4 EXP2_09_PIN
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#if ENABLED(MKS_MINI_12864)
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#define DOGLCD_CS P2_06
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#define DOGLCD_A0 EXP1_07_PIN
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#endif
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#endif // HAS_WIRED_LCD
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//
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// SD Support
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//
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// MKS_MINI_12864 strongly prefers the SD card on the display and
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// requires jumpers on the SKR V1.1 board as documented here:
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// https://www.facebook.com/groups/505736576548648/permalink/630639874058317/
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#ifndef SDCARD_CONNECTION
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#if ANY(MKS_MINI_12864, ENDER2_STOCKDISPLAY, IS_TFTGLCD_PANEL)
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#define SDCARD_CONNECTION LCD
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#else
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#define SDCARD_CONNECTION ONBOARD
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#endif
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#endif
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// Trinamic driver support
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#if HAS_TRINAMIC_CONFIG
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// Using TMC devices in intelligent mode requires extra connections to each device. Unfortunately
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// the SKR does not have many free pins (especially if a display is in use). The SPI-based devices
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// will require 3 connections (clock, mosi, miso), plus a chip select line (CS) for each driver.
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// The UART-based devices require 2 pis per driver (one of which must be interrupt capable).
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// The same SPI pins can be shared with the display/SD card reader, meaning SPI-based devices are
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// probably a good choice for this board.
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//
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// SOFTWARE_DRIVER_ENABLE is a good option. It uses SPI to control the driver enable and allows the
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// hardware ENABLE pins for each driver to be repurposed as SPI chip select. To use this mode the
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// driver modules will probably need to be modified, removing the pin used for the enable line from
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// the module and wiring this connection directly to GND (as is the case for TMC2130).
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// Using this option and sharing all of the SPI pins allows 5 TMC2130 drivers to be used along with
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// a REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER without requiring the use of any extra pins.
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//
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// Other options will probably require the use of any free pins and the TFT serial port or a
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// different type of display (like the TFT), using the pins normally used for the display and encoder.
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// Unfortunately, tests show it's not possible to use endstop and thermistor pins for chip-select.
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// Sample settings are provided below, but only some have been tested.
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//
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// Another option is to share the enable and chip-select pins when using SPI. Several users have
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// reported that this works. However, it's unlikely that this configuration will allow SPI communi-
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// cation with the device when the drivers are active, meaning that some of the more advanced TMC
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// options may not be available.
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// When using any TMC SPI-based drivers, software SPI is used
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// because pins may be shared with the display or SD card.
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#define TMC_USE_SW_SPI
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#define TMC_SW_MOSI EXP2_05_PIN
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#define TMC_SW_MISO EXP2_10_PIN
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// To minimize pin usage use the same clock pin as the display/SD card reader. (May generate LCD noise.)
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#define TMC_SW_SCK EXP2_09_PIN
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// If pin 2_06 is unused, it can be used for the clock to avoid the LCD noise.
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//#define TMC_SW_SCK P2_06
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#if ENABLED(SOFTWARE_DRIVER_ENABLE)
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// Software enable allows the enable pins to be repurposed as chip-select pins.
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// Note: Requires the driver modules to be modified to always be enabled with the enable pin removed.
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#if AXIS_DRIVER_TYPE_X(TMC2130)
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#define X_CS_PIN P4_28
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#undef X_ENABLE_PIN
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#endif
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#if AXIS_DRIVER_TYPE_Y(TMC2130)
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#define Y_CS_PIN P2_00
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#undef Y_ENABLE_PIN
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#endif
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#if AXIS_DRIVER_TYPE_Z(TMC2130)
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#define Z_CS_PIN P0_19
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#undef Z_ENABLE_PIN
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#endif
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#if AXIS_DRIVER_TYPE_E0(TMC2130)
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#define E0_CS_PIN P2_12
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#undef E0_ENABLE_PIN
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#endif
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#if AXIS_DRIVER_TYPE_E1(TMC2130)
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#define E1_CS_PIN P0_10
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#undef E1_ENABLE_PIN
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#endif
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#else // !SOFTWARE_DRIVER_ENABLE
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// A chip-select pin is needed for each driver.
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// EXAMPLES
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// Example 1: No LCD attached or a TFT style display using the AUX header RX/TX pins.
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// SDCARD_CONNECTION must not be 'LCD'. Nothing should be connected to EXP1/EXP2.
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//#define SKR_USE_LCD_PINS_FOR_CS
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#if ENABLED(SKR_USE_LCD_PINS_FOR_CS)
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#define X_CS_PIN EXP2_07_PIN
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#define Y_CS_PIN EXP2_08_PIN
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#define Z_CS_PIN EXP1_09_PIN
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#define E0_CS_PIN EXP2_06_PIN
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#define E1_CS_PIN EXP2_04_PIN
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#endif
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// Example 2: A REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER
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// The SD card reader attached to the LCD (if present) can't be used because
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// the pins will be in use. So SDCARD_CONNECTION must not be 'LCD'.
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//#define SKR_USE_LCD_SD_CARD_PINS_FOR_CS
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#if ENABLED(SKR_USE_LCD_SD_CARD_PINS_FOR_CS)
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#define X_CS_PIN P0_02
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#define Y_CS_PIN P0_03
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#define Z_CS_PIN P2_06
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// We use SD_DETECT_PIN for E0
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#undef SD_DETECT_PIN
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#define E0_CS_PIN EXP2_04_PIN
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// We use LCD_SDSS pin for E1
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#undef LCD_SDSS
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#define LCD_SDSS -1
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#define E1_CS_PIN EXP2_07_PIN
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#endif
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// Example 3: Use the driver enable pins for chip-select.
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// Commands must not be sent to the drivers when enabled. So certain
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// advanced features (like driver monitoring) will not be available.
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//#define SKR_USE_ENABLE_CS
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#if ENABLED(SKR_USE_ENABLE_FOR_CS)
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#define X_CS_PIN X_ENABLE_PIN
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#define Y_CS_PIN Y_ENABLE_PIN
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#define Z_CS_PIN Z_ENABLE_PIN
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#define E0_CS_PIN E0_ENABLE_PIN
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#define E1_CS_PIN E1_ENABLE_PIN
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#endif
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#endif // SOFTWARE_DRIVER_ENABLE
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#endif
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// Include common SKR pins
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#include "pins_BTT_SKR_common.h"
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