Fix SPI, SD for BIGTREETECH SKR Mini (#14287)

Marlin/src/HAL/HAL_STM32F1/HAL_spi_STM32F1.cpp

@@ -36,20 +36,14 @@
 // Includes
 // --------------------------------------------------------------------------
 
-#include "HAL.h"
-#include "../shared/HAL_SPI.h"
-#include "pins_arduino.h"
-#include "spi_pins.h"
+#include "../../inc/MarlinConfig.h"
 #include <SPI.h>
 
-#include "../../inc/MarlinConfigPre.h"
 
 // --------------------------------------------------------------------------
 // Public Variables
 // --------------------------------------------------------------------------
 
-static SPISettings spiConfig;
-
 // --------------------------------------------------------------------------
 // Public functions
 // --------------------------------------------------------------------------
@@ -82,8 +76,7 @@ void spiBegin() {
   #if !PIN_EXISTS(SS)
     #error "SS_PIN not defined!"
   #endif
-  SET_OUTPUT(SS_PIN);
-  WRITE(SS_PIN, HIGH);
+  OUT_WRITE(SS_PIN, HIGH);
 }
 
 /**
@@ -105,8 +98,11 @@ void spiInit(uint8_t spiRate) {
     case SPI_SPEED_6:       clock = SPI_CLOCK_DIV64; break;
     default:                clock = SPI_CLOCK_DIV2; // Default from the SPI library
   }
-  spiConfig = SPISettings(clock, MSBFIRST, SPI_MODE0);
+  SPI.setModule(SPI_DEVICE);
   SPI.begin();
+  SPI.setClockDivider(clock);
+  SPI.setBitOrder(MSBFIRST);
+  SPI.setDataMode(SPI_MODE0);
 }
 
 /**
@@ -117,9 +113,9 @@ void spiInit(uint8_t spiRate) {
  * @details
  */
 uint8_t spiRec(void) {
-  SPI.beginTransaction(spiConfig);
+  WRITE(SS_PIN, LOW);
   uint8_t returnByte = SPI.transfer(0xFF);
-  SPI.endTransaction();
+  WRITE(SS_PIN, HIGH);
   return returnByte;
 }
 
@@ -133,9 +129,9 @@ uint8_t spiRec(void) {
  * @details Uses DMA
  */
 void spiRead(uint8_t* buf, uint16_t nbyte) {
-  SPI.beginTransaction(spiConfig);
+  WRITE(SS_PIN, LOW);
   SPI.dmaTransfer(0, const_cast<uint8_t*>(buf), nbyte);
-  SPI.endTransaction();
+  WRITE(SS_PIN, HIGH);
 }
 
 /**
@@ -146,9 +142,9 @@ void spiRead(uint8_t* buf, uint16_t nbyte) {
  * @details
  */
 void spiSend(uint8_t b) {
-  SPI.beginTransaction(spiConfig);
+  WRITE(SS_PIN, LOW);
   SPI.send(b);
-  SPI.endTransaction();
+  WRITE(SS_PIN, HIGH);
 }
 
 /**
@@ -160,25 +156,10 @@ void spiSend(uint8_t b) {
  * @details Use DMA
  */
 void spiSendBlock(uint8_t token, const uint8_t* buf) {
-  SPI.beginTransaction(spiConfig);
+  WRITE(SS_PIN, LOW);
   SPI.send(token);
   SPI.dmaSend(const_cast<uint8_t*>(buf), 512);
-  SPI.endTransaction();
-}
-
-/**
- * @brief  Begin SPI transaction, set clock, bit order, data mode
- *
- * @param  spiClock   Clock setting
- * @param  bitOrder   Bit Order setting
- * @param  dataMode   Data Mode setting
- * @return Nothing
- *
- * @details Uses an SPI Config via SPISettings
- */
-void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) {
-  spiConfig = SPISettings(spiClock, (BitOrder)bitOrder, dataMode);
-  SPI.beginTransaction(spiConfig);
+  WRITE(SS_PIN, HIGH);
 }
 
 #if ENABLED(SPI_EEPROM)

Marlin/src/HAL/HAL_STM32F1/spi_pins.h

@@ -21,13 +21,29 @@
 /**
  * HAL for stm32duino.com based on Libmaple and compatible (STM32F1)
  */
-
 /**
  * Define SPI Pins: SCK, MISO, MOSI, SS
  *
  * Any PIN can be used for Chip Select (SS)
+ * 
+ * SPI1 is enabled by default
  */
-#define SCK_PIN   PA5
-#define MISO_PIN  PA6
-#define MOSI_PIN  PA7
-#define SS_PIN    PA4
+#if ENABLED(ENABLE_SPI3)
+  #define SPI_DEVICE 3
+  #define SCK_PIN   BOARD_SPI3_SCK_PIN
+  #define MISO_PIN  BOARD_SPI3_MISO_PIN
+  #define MOSI_PIN  BOARD_SPI3_MOSI_PIN
+  #define SS_PIN    BOARD_SPI3_NSS_PIN
+#elif ENABLED(ENABLE_SPI2)
+  #define SPI_DEVICE 2
+  #define SCK_PIN   BOARD_SPI2_SCK_PIN
+  #define MISO_PIN  BOARD_SPI2_MISO_PIN
+  #define MOSI_PIN  BOARD_SPI2_MOSI_PIN
+  #define SS_PIN    BOARD_SPI2_NSS_PIN
+#else
+  #define SPI_DEVICE 1
+  #define SCK_PIN   BOARD_SPI1_SCK_PIN
+  #define MISO_PIN  BOARD_SPI1_MISO_PIN
+  #define MOSI_PIN  BOARD_SPI1_MOSI_PIN
+  #define SS_PIN    BOARD_SPI1_NSS_PIN
+#endif

Marlin/src/pins/pins_BIGTREE_SKR_MINI_V1_1.h

@@ -28,6 +28,9 @@
   #define BOARD_NAME "BIGTREE SKR mini V1.1"
 #endif
 
+  //#define DISABLE_DEBUG
+  #define DISABLE_JTAG
+
 // Ignore temp readings during develpment.
 //#define BOGUS_TEMPERATURE_FAILSAFE_OVERRIDE
 
@@ -91,11 +94,11 @@
 /**
  *                _____                                             _____
  *            NC | · · | GND                                    5V | · · | GND
- *        RESET | · · | 1.31(SD_DETECT)             (LCD_D7) 1.23 | · · | 1.22 (LCD_D6)
- *   (MOSI)0.18 | · · | 3.25(BTN_EN2)               (LCD_D5) 1.21 | · · | 1.20 (LCD_D4)
- *  (SD_SS)0.16 | · · | 3.26(BTN_EN1)               (LCD_RS) 1.19 | · · | 1.18 (LCD_EN)
- *    (SCK)0.15 | · · | 0.17(MISO)                 (BTN_ENC) 0.28 | · · | 1.30 (BEEPER)
- *               ￣￣                                               ￣￣
+ *         RESET | · · | PB9 (SD_DETECT)             (LCD_D7) PC14 | · · | PC15 (LCD_D6)
+ *  (MOSI)   PB5 | · · | PB8 (BTN_EN2)               (LCD_D5)  PB7 | · · | PC13 (LCD_D4)
+ * (SD_SS)  PA15 | · · | PD2 (BTN_EN1)               (LCD_RS) PC12 | · · | PB6  (LCD_EN)
+ *   (SCK)   PB3 | · · | PB4 (MISO)                 (BTN_ENC) PC11 | · · | PC10 (BEEPER)
+ *                ￣￣￣                                             ￣￣￣
  *                EXP2                                              EXP1
  */
 
@@ -123,10 +126,13 @@
 // SD Card
 //
 
-// Marlin uses the SD drive attached to the LCD
+// By default the onboard SD is enabled. 
+// To disable it and use an external SD (connected to LCD)
+// enable STM32_SD_LCD.
+
 //#define STM32_SD_LCD
 
-#ifdef STM32_SD_LCD
+#if ENABLED(STM32_SD_LCD)
   #define SD_DETECT_PIN    PB9
   #define ENABLE_SPI3
 #else