Add BIQU BQ111-A4 board

Marlin/src/HAL/HAL_LPC1768/spi_pins.h

@@ -31,11 +31,21 @@
 //#define MOSI_PIN          P0_09
 //#define SS_PIN            P0_06
 /** external */
-#define SCK_PIN           P0_15
-#define MISO_PIN          P0_17
-#define MOSI_PIN          P0_18
-#define SS_PIN            P1_23
-#define SDSS              SS_PIN
+#ifndef SCK_PIN
+  #define SCK_PIN           P0_15
+#endif
+#ifndef MISO_PIN
+  #define MISO_PIN          P0_17
+#endif
+#ifndef MOSI_PIN
+  #define MOSI_PIN          P0_18
+#endif
+#ifndef SS_PIN
+  #define SS_PIN            P1_23
+#endif
+#ifndef SDSS
+  #define SDSS              SS_PIN
+#endif
 
 #if (defined(TARGET_LPC1768) && !(defined(LPC_SOFTWARE_SPI)))   // signal LCDs that they need to use the hardware SPI
   #define SHARED_SPI

Marlin/src/core/boards.h

@@ -150,6 +150,7 @@
 #define BOARD_MKS_SBASE           1750  // MKS-Sbase (Power outputs: Hotend0, Hotend1, Bed, Fan)
 #define BOARD_AZSMZ_MINI          1751  // AZSMZ Mini
 #define BOARD_AZTEEG_X5_GT        1752  // Azteeg X5 GT (Power outputs: Hotend0, Hotend1, Bed, Fan)
+#define BOARD_BIQU_BQ111_A4       1753  // BIQU BQ111-A4 (Power outputs: Hotend, Fan, Bed)
 
 //
 // SAM3X8E ARM Cortex M3

Marlin/src/pins/pins.h

@@ -318,6 +318,8 @@
   #include "pins_AZSMZ_MINI.h"
 #elif MB(AZTEEG_X5_GT)
   #include "pins_AZTEEG_X5_GT.h"
+#elif MB(BIQU_BQ111_A4)
+  #include "pins_BIQU_BQ111_A4.h"
 #else
   #error "Unknown MOTHERBOARD value set in Configuration.h"
 #endif

Marlin/src/pins/pins_BIQU_BQ111_A4.h

@@ -0,0 +1,161 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (C) 2017 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/>.
+ *
+ */
+
+/**
+ * BIQU BQ111-A4
+ *
+ * Applies to the following boards:
+ *
+ *  BOARD_BIQU_BQ111_A4 (Hotend, Fan, Bed)
+ *
+ */
+
+#ifndef TARGET_LPC1768
+  #error "Oops!  Make sure you have Re-Arm selected."
+#endif
+
+#ifndef BOARD_NAME
+  #define BOARD_NAME "BIQU BQ111-A4"
+#endif
+
+//
+// Limit Switches
+//
+#define X_MIN_PIN         P1_24  //10k pullup to 3.3V, 1K series
+#define X_MAX_PIN         P1_25  //10k pullup to 3.3V, 1K series
+#define Y_MIN_PIN         P1_26  //10k pullup to 3.3V, 1K series
+#define Y_MAX_PIN         P1_27  //10k pullup to 3.3V, 1K series
+#define Z_MIN_PIN         P1_28  //10k pullup to 3.3V, 1K series
+#define Z_MAX_PIN         P1_29  //10k pullup to 3.3V, 1K series
+
+
+//
+// Steppers
+//
+#define X_STEP_PIN         P2_0
+#define X_DIR_PIN          P0_5
+#define X_ENABLE_PIN       P0_4
+
+#define Y_STEP_PIN         P2_1
+#define Y_DIR_PIN          P0_11
+#define Y_ENABLE_PIN       P0_10
+
+#define Z_STEP_PIN         P2_2
+#define Z_DIR_PIN          P0_20
+#define Z_ENABLE_PIN       P0_19
+
+#define E0_STEP_PIN        P2_3
+#define E0_DIR_PIN         P0_22
+#define E0_ENABLE_PIN      P0_21
+
+
+//
+// Temperature Sensors
+//  3.3V max when defined as an analog input
+//
+#define TEMP_0_PIN          0  // A0 (T0)
+#define TEMP_BED_PIN        1  // A1 (T1)
+
+
+//
+// Heaters / Fans
+//
+#define HEATER_0_PIN       P2_7
+#define HEATER_BED_PIN     P2_5
+#define FAN_PIN            P2_4
+
+//
+// Unused
+//
+//#define PIN_P2_10         P2_10  // IBOOT-1
+//#define PIN_P0_27         P0_27  // Onboard SD Detect
+
+/**
+ * LCD / Controller
+ *
+ * REPRAP_DISCOUNT_SMART_CONTROLLER is not supported due to the lack of LCD_PINS_D5,
+ * LCD_PINS_D6 or LCD_PINS_D7 in the EXP1 connector.
+ * 
+ * A remote SD card is not supported as the pins routed to EXP2 are the same as used
+ * for the onboard SD card, and a chip select signal is not provided for the remote
+ * SD card.
+ */
+#if ENABLED(ULTRA_LCD)
+
+  #define BEEPER_PIN          P1_31  // EXP1-1
+
+  #define BTN_EN1             P3_26  // EXP2-3
+  #define BTN_EN2             P3_25  // EXP2-5
+  #define BTN_ENC             P1_30  // EXP1-2
+
+  #define SD_DETECT_PIN       P0_27  // EXP2-7
+  #define LCD_PINS_RS         P0_16  // EXP1-4
+  #define LCD_PINS_ENABLE     P0_18  // (MOSI) EXP1-3
+  #define LCD_PINS_D4         P0_15  // (SCK)  EXP1-5
+
+  #if ENABLED(REPRAP_DISCOUNT_SMART_CONTROLLER) && !ENABLED(DOGLCD)
+    #error "REPRAP_DISCOUNT_SMART_CONTROLLER is not supported by the BIQU BQ111-A4"
+  #endif
+
+  #if ENABLED(SDSUPPORT)
+    #error "SDSUPPORT is not supported by the BIQU BQ111-A4 when an LCD controller is used"
+  #endif
+
+#endif // ULTRA_LCD
+
+
+/**
+ * SD Card Reader
+ *
+ * Software SPI is used to interface with a stand-alone SD card reader connected to EXP1.
+ * Hardware SPI can't be used because P0_17 (MISO) is not brought out on this board.
+ */
+#if ENABLED(SDSUPPORT)
+
+  #define SCK_PIN   P0_15 // EXP1-5
+  #define MISO_PIN  P0_16 // EXP1-4
+  #define MOSI_PIN  P0_18 // EXP1-3
+  #define SS_PIN    P1_30 // EXP1-2
+  #define SDSS      SS_PIN
+
+#endif // SDSUPPORT
+
+
+/**
+ *  PWMS
+ *
+ *  There are 6 PWMS.  Each PWM can be assigned to one of two pins.
+ *
+ *  PWM1.1   P0_18   LCD_PINS_ENABLE
+ *  PWM1.1   P2_0    X_STEP_PIN
+ *  PWM1.2   P1_20   <none>
+ *  PWM1.2   P2_1    Y_STEP_PIN
+ *  PWM1.3   P1_21   <none>
+ *  PWM1.3   P2_2    Z_STEP_PIN
+ *  PWM1.4   P1_23   <none>
+ *  PWM1.4   P2_3    E0_STEP_PIN
+ *  PWM1.5   P1_24   X_MIN_PIN
+ *  PWM1.5   P2_4    FAN_PIN
+ *  PWM1.6   P1_26   Y_MIN_PIN
+ *  PWM1.6   P2_5    HEATER_BED_PIN
+ */