272 lines
9.7 KiB
C
272 lines
9.7 KiB
C
/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2019 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 <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef TARGET_LPC1768
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#error "Oops! Make sure you have the LPC1768 environment selected in your IDE."
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#endif
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#ifndef BOARD_NAME
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#define BOARD_NAME "BIQU SKR V1.1"
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#endif
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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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#define E1_STEP_PIN P0_01
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#define E1_DIR_PIN P0_00
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#define E1_ENABLE_PIN P0_10
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//
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// Temperature Sensors
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// 3.3V max when defined as an analog input
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//
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#define TEMP_BED_PIN 0 // Analog Input
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#define TEMP_0_PIN 1 // Analog Input
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#define TEMP_1_PIN 2 // Analog Input
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//
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// Heaters / Fans
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//
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#define HEATER_0_PIN P2_07
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#if HOTENDS == 1
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#define FAN1_PIN P2_04
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#else
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#define HEATER_1_PIN P2_04
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#endif
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#define FAN_PIN P2_03
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#define HEATER_BED_PIN P2_05
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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 ENABLED(ULTRA_LCD)
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#define BEEPER_PIN P1_30
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#define BTN_EN1 P3_26
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#define BTN_EN2 P3_25
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#define BTN_ENC P2_11
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#define SD_DETECT_PIN P1_31
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#define LCD_SDSS P1_23
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#define LCD_PINS_RS P0_16
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#define LCD_PINS_ENABLE P0_18
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#define LCD_PINS_D4 P0_15
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#endif
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//
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// SD Support
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//
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//#define USB_SD_DISABLED // Disable host access to SD card as mass storage device through USB
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#define USB_SD_ONBOARD // Enable host access to SD card as mass storage device through USB
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//#define LPC_SD_LCD // Marlin uses the SD drive attached to the LCD
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#define LPC_SD_ONBOARD // Marlin uses the SD drive on the control board. There is no SD detect pin
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// for the onboard card. Init card from LCD menu or send M21 whenever printer
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// is powered on to enable SD access.
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#if ENABLED(LPC_SD_LCD)
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#define SCK_PIN P0_15
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#define MISO_PIN P0_17
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#define MOSI_PIN P0_18
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#define SS_PIN P1_23 // Chip select for SD card used by Marlin
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#define ONBOARD_SD_CS P0_06 // Chip select for "System" SD card
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#elif ENABLED(LPC_SD_ONBOARD)
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#if ENABLED(USB_SD_ONBOARD)
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// When sharing the SD card with a PC we want the menu options to
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// mount/unmount the card and refresh it. So we disable card detect.
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#define SHARED_SD_CARD
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#undef SD_DETECT_PIN // there is also no detect pin for the onboard card
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#endif
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#define SCK_PIN P0_07
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#define MISO_PIN P0_08
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#define MOSI_PIN P0_09
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#define SS_PIN P0_06 // Chip select for SD card used by Marlin
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#define ONBOARD_SD_CS P0_06 // Chip select for "System" SD card
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#endif
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// Trinamic driver support
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#if HAS_TRINAMIC
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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 deriver (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 P0_18
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#define TMC_SW_MISO P0_17
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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 P0_15
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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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#define X_ENABLE_PIN -1
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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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#define Y_ENABLE_PIN -1
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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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#define Z_ENABLE_PIN -1
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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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#define E0_ENABLE_PIN -1
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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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#define E1_ENABLE_PIN -1
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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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// LPC_SD_LCD must not be enabled. 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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#if ENABLED(LPC_SD_LCD)
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#error "LPC_SD_LCD must not be enabled with SKR_USE_LCD_PINS_FOR_CS."
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#endif
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#define X_CS_PIN P1_23
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#define Y_CS_PIN P3_26
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#define Z_CS_PIN P2_11
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#define E0_CS_PIN P3_25
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#define E1_CS_PIN P1_31
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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 LPC_SD_LCD must not be defined.
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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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#if ENABLED(LPC_SD_LCD)
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#error "LPC_SD_LCD must not be enabled with SKR_USE_LCD_SD_CARD_PINS_FOR_CS."
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#endif
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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 P1_31
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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 P1_23
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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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