✨ BTT SKR Pico

.github/workflows/test-builds.yml

@@ -34,6 +34,9 @@ jobs:
  matrix:
  test-platform:
 
+ # RP2040
+ - SKR_Pico
+
  # Native
  - linux_native
 

Marlin/src/core/boards.h

@@ -508,6 +508,7 @@
 //
 
 #define BOARD_RP2040 6200 // Generic RP2040 Test board
+#define BOARD_BTT_SKR_PICO 6201 // BigTreeTech SKR Pico 1.x
 
 //
 // Custom board

Marlin/src/core/serial.cpp

@@ -27,6 +27,8 @@
  #include "../feature/ethernet.h"
 #endif
 
+#include <stdlib.h> // dtostrf
+
 uint8_t marlin_debug_flags = MARLIN_DEBUG_NONE;
 
 // Commonly-used strings in serial output

Marlin/src/pins/pins.h

@@ -877,6 +877,8 @@
 
 #elif MB(RP2040)
  #include "rp2040/pins_RP2040.h" // RP2040 env:RP2040
+#elif MB(BTT_SKR_PICO)
+ #include "rp2040/pins_BTT_SKR_Pico.h" // RP2040 env:SKR_Pico env:SKR_Pico_UART
 
 //
 // Custom board (with custom PIO env)

Marlin/src/pins/rp2040/env_validate.h

@@ -0,0 +1,26 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2022 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
+
+#if NOT_TARGET(__PLAT_RP2040__)
+ #error "Oops! Make sure to build with target platform 'RP2040'."
+#endif

Marlin/src/pins/rp2040/pins_BTT_SKR_Pico.h

@@ -0,0 +1,157 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2022 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 Pico
+ * https://github.com/bigtreetech/SKR-Pico
+ */
+
+#include "env_validate.h"
+
+#define BOARD_INFO_NAME "BTT SKR Pico"
+#define DEFAULT_MACHINE_NAME "BIQU 3D Printer"
+
+#define USBCON
+
+#ifndef MARLIN_EEPROM_SIZE
+ #define MARLIN_EEPROM_SIZE 0x2000 // 8KB
+#endif
+
+//
+// Servos
+//
+#define SERVO0_PIN 29
+
+//
+// Limit Switches
+//
+#define X_DIAG_PIN 4
+#define Y_DIAG_PIN 3
+#define Z_DIAG_PIN 25 // probe:z_virtual_endstop
+
+#define X_STOP_PIN X_DIAG_PIN
+#define Y_STOP_PIN Y_DIAG_PIN
+#define Z_STOP_PIN Z_DIAG_PIN
+
+#ifndef FIL_RUNOUT_PIN
+ #define FIL_RUNOUT_PIN 16 // E0-STOP
+#endif
+
+#ifndef Z_MIN_PROBE_PIN
+ #define Z_MIN_PROBE_PIN 22
+#endif
+
+//
+// Steppers
+//
+#define X_STEP_PIN 11
+#define X_DIR_PIN 10
+#define X_ENABLE_PIN 12
+
+#define Y_STEP_PIN 6
+#define Y_DIR_PIN 5
+#define Y_ENABLE_PIN 7
+
+#define Z_STEP_PIN 19
+#define Z_DIR_PIN 28
+#define Z_ENABLE_PIN 2
+
+#define E0_STEP_PIN 14
+#define E0_DIR_PIN 13
+#define E0_ENABLE_PIN 15
+
+//
+// Temperature Sensors
+//
+#define TEMP_0_PIN 27 // Analog Input
+#define TEMP_BED_PIN 26 // Analog Input
+
+//
+// Heaters / Fans
+//
+#define HEATER_0_PIN 23
+#define HEATER_BED_PIN 21
+
+#define FAN_PIN 17
+#define FAN1_PIN 18
+
+#if HAS_CUTTER
+ #define SPINDLE_LASER_ENA_PIN 0
+ #define SPINDLE_LASER_PWM_PIN 1
+#else
+ #define FAN2_PIN 20
+#endif
+
+//
+// Misc. Functions
+//
+#define NEOPIXEL_PIN 24
+
+/**
+ * TMC2208/TMC2209 stepper drivers
+ */
+#if HAS_TMC_UART
+ /**
+ * Hardware serial communication ports.
+ * If undefined software serial is used according to the pins below
+ */
+ //#define X_HARDWARE_SERIAL Serial1
+ //#define X2_HARDWARE_SERIAL Serial1
+ //#define Y_HARDWARE_SERIAL Serial1
+ //#define Y2_HARDWARE_SERIAL Serial1
+ //#define Z_HARDWARE_SERIAL MSerial1
+ //#define Z2_HARDWARE_SERIAL Serial1
+ //#define E0_HARDWARE_SERIAL Serial1
+ //#define E1_HARDWARE_SERIAL Serial1
+ //#define E2_HARDWARE_SERIAL Serial1
+ //#define E3_HARDWARE_SERIAL Serial1
+ //#define E4_HARDWARE_SERIAL Serial1
+
+ /**
+ * Software serial
+ */
+ #ifndef X_SERIAL_TX_PIN
+ #define X_SERIAL_TX_PIN 8
+ #endif
+ #ifndef X_SERIAL_RX_PIN
+ #define X_SERIAL_RX_PIN 9
+ #endif
+ #ifndef Y_SERIAL_TX_PIN
+ #define Y_SERIAL_TX_PIN 8
+ #endif
+ #ifndef Y_SERIAL_RX_PIN
+ #define Y_SERIAL_RX_PIN 9
+ #endif
+ #ifndef Z_SERIAL_TX_PIN
+ #define Z_SERIAL_TX_PIN 8
+ #endif
+ #ifndef Z_SERIAL_RX_PIN
+ #define Z_SERIAL_RX_PIN 9
+ #endif
+ #ifndef E0_SERIAL_TX_PIN
+ #define E0_SERIAL_TX_PIN 8
+ #endif
+ #ifndef E0_SERIAL_RX_PIN
+ #define E0_SERIAL_RX_PIN 9
+ #endif
+#endif

buildroot/tests/SKR_Pico

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+#
+# Build tests for BTT SKR Pico
+#
+
+# exit on first failure
+set -e
+
+#
+# Build with the default configurations
+#
+restore_configs
+opt_set MOTHERBOARD BOARD_BTT_SKR_PICO NUM_SERVOS 1
+opt_enable Z_PROBE_SERVO_NR Z_SERVO_ANGLES Z_SAFE_HOMING
+exec_test $1 $2 "Default Configuration" "$3"
+
+# clean up
+restore_configs

ini/raspberrypi.ini

@@ -17,3 +17,12 @@ lib_ignore = WiFi
 build_flags = ${common.build_flags} -D__PLAT_RP2040__ -DPLATFORM_M997_SUPPORT -Wno-expansion-to-defined -Wno-vla -Wno-ignored-qualifiers
 #debug_tool = jlink
 #upload_protocol = jlink
+
+#
+# BigTreeTech SKR Pico 1.x
+#
+[env:SKR_Pico]
+extends = env:RP2040
+
+[env:SKR_Pico_UART]
+extends = env:SKR_Pico