[stm32f412] support RTduino SPI

Author: mysterywolf

bsp/stm32/stm32f412-st-nucleo/applications/arduino_pinout/README.md

@@ -69,7 +69,7 @@ I2C bus is `SCL/D15` and `SDA/D14` pins. Users can directly include the `#includ
 
 ### 3.2 SPI Bus
 
-This board doesn't support Arduino SPI header file and functions.
+The SPI bus of the Nucleo board is the `CS/D10`, `MOSI/D11`, `MISO/D12` and `SCK/D13` pins printed on the board. These `D11`, `D12` and `D13` pins It is taken over by the RT-Thread SPI device framework and there is no need to directly control these pins. User needs to operate `D10` chip select pin. Directly quote `#include <SPI.h>` (Arduino official SPI header file) to use. After using the SPI function, the PWM function of `D10` and `D11` will be irreversibly disabled and converted to the SPI function.
 
 ### 3.3 Serial
 

bsp/stm32/stm32f412-st-nucleo/applications/arduino_pinout/README_zh.md

@@ -68,7 +68,7 @@ I2C总线是板上丝印的 `SCL/D15` 和 `SDA/D14` 引脚，这两个引脚默
 
 ### 3.2 SPI总线
 
-目前本BSP不支持使用Arduino的SPI功能。
+Nucleo板的SPI总线是板上丝印的 `CS/D10`、`MOSI/D11`、`MISO/D12` 以及 `SCK/D13` 引脚，这`D11`、`D12` 以及 `D13` 引脚是被RT-Thread SPI设备框架接管的，不需要直接操控这些引脚。用户需要操作 `D10` 片选引脚。直接引用`#include <SPI.h>`（Arduino官方SPI头文件）即可使用。在使用SPI功能后，`D10` 和 `D11` 的PWM功能将会不可逆失效，转为SPI功能。
 
 ### 3.3 串口
 

bsp/stm32/stm32f412-st-nucleo/applications/arduino_pinout/pins_arduino.c

@@ -12,6 +12,10 @@
 #include "pins_arduino.h"
 #include <drv_gpio.h>
 
+#define DBG_TAG    "RTduino.pins_arduino"
+#define DBG_LVL    DBG_INFO
+#include <rtdbg.h>
+
 /*
  * {Arduino Pin, RT-Thread Pin [, Device Name, Channel]}
  * [] means optional
@@ -50,3 +54,34 @@ const pin_map_t pin_map_table[]=
     {A6, RT_NULL, "adc1", RT_ADC_INTERN_CH_VREF},   /* ADC, On-Chip: internal reference voltage */
     {A7, RT_NULL, "adc1", RT_ADC_INTERN_CH_TEMPER}, /* ADC, On-Chip: internal temperature sensor */
 };
+
+#ifdef RTDUINO_USING_SPI
+void switchToSPI(const char *bus_name)
+{
+    GPIO_InitTypeDef GPIO_InitStruct = {0};
+
+    if(!rt_strcmp(bus_name, "spi1"))
+    {
+        __HAL_RCC_SPI1_CLK_ENABLE();
+        __HAL_RCC_GPIOA_CLK_ENABLE();
+
+        HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5);
+        HAL_GPIO_DeInit(GPIOA, GPIO_PIN_6);
+        HAL_GPIO_DeInit(GPIOA, GPIO_PIN_7);
+
+        /**SPI1 GPIO Configuration
+        PA5     ------> SPI1_SCK
+        PA6     ------> SPI1_MISO
+        PA7     ------> SPI1_MOSI
+        */
+        GPIO_InitStruct.Pin = GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
+        GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+        GPIO_InitStruct.Pull = GPIO_NOPULL;
+        GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+        GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
+        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+        LOG_W("D11, D12 and D13 will switch from PWM to SPI");
+    }
+}
+#endif /* RTDUINO_USING_SPI */

bsp/stm32/stm32f412-st-nucleo/applications/arduino_pinout/pins_arduino.h

@@ -41,11 +41,16 @@
 #define A6        (26)
 #define A7        (27)
 
+#define RTDUINO_PIN_MAX_LIMIT A7 /* pin number max limit check */
+
 #define F_CPU          96000000L  /* CPU:96MHz */
 
 #define LED_BUILTIN     D17  /* Default Built-in LED */
 
 /* i2c1 : PB9-SDA PB8-SCL */
 #define RTDUINO_DEFAULT_IIC_BUS_NAME    "i2c1"
 
+#define SS          D10
+#define RTDUINO_DEFAULT_SPI_BUS_NAME    "spi1"
+
 #endif /* Pins_Arduino_h */

bsp/stm32/stm32f412-st-nucleo/board/CubeMX_Config/Inc/stm32f4xx_hal_conf.h

@@ -62,7 +62,7 @@
 /* #define HAL_SAI_MODULE_ENABLED   */
 /* #define HAL_SD_MODULE_ENABLED   */
 /* #define HAL_MMC_MODULE_ENABLED   */
-/* #define HAL_SPI_MODULE_ENABLED   */
+#define HAL_SPI_MODULE_ENABLED
 #define HAL_TIM_MODULE_ENABLED
 #define HAL_UART_MODULE_ENABLED
 /* #define HAL_USART_MODULE_ENABLED   */

bsp/stm32/stm32f412-st-nucleo/board/Kconfig

@@ -27,8 +27,13 @@ menu "Onboard Peripheral Drivers"
         select BSP_USING_PWM14_CH1
         select BSP_USING_I2C
         select BSP_USING_I2C1
+        select BSP_USING_SPI
+        select BSP_USING_SPI1
+        select BSP_SPI1_TX_USING_DMA
+        select BSP_SPI1_RX_USING_DMA
         imply RTDUINO_USING_SERVO
         imply RTDUINO_USING_WIRE
+        imply RTDUINO_USING_SPI
         default n
 
 endmenu
@@ -142,6 +147,27 @@ menu "On-chip Peripheral Drivers"
                 endif
         endif
 
+    menuconfig BSP_USING_SPI
+        bool "Enable SPI BUS"
+        default n
+        select RT_USING_SPI
+        if BSP_USING_SPI
+            config BSP_USING_SPI1
+                bool "Enable SPI1 BUS"
+                default n
+
+            config BSP_SPI1_TX_USING_DMA
+                bool "Enable SPI1 TX DMA"
+                depends on BSP_USING_SPI1
+                default n
+
+            config BSP_SPI1_RX_USING_DMA
+                bool "Enable SPI1 RX DMA"
+                depends on BSP_USING_SPI1
+                select BSP_SPI1_TX_USING_DMA
+                default n
+        endif
+
     config BSP_USING_ON_CHIP_FLASH
         bool "Enable on-chip FLASH"
         default n

bsp/stm32/stm32l476-st-nucleo/applications/arduino_pinout/README.md

@@ -62,11 +62,11 @@ Hardware Drivers Config --->
 
 ### 3.1 I2C总线
 
-STM32F410 Nucleo板的I2C总线是板上丝印的 `SCL/D15` 和 `SDA/D14` 引脚，这两个引脚是被RT-Thread I2C设备框架接管的，不需要直接操控这两个引脚，直接引用`#include <Wire.h>`（Arduino官方I2C头文件）即可使用。
+Nucleo板的I2C总线是板上丝印的 `SCL/D15` 和 `SDA/D14` 引脚，这两个引脚是被RT-Thread I2C设备框架接管的，不需要直接操控这两个引脚，直接引用`#include <Wire.h>`（Arduino官方I2C头文件）即可使用。
 
 ### 3.2 SPI总线
 
-目前本BSP不支持使用Arduino的SPI功能。
+Nucleo板的SPI总线是板上丝印的 `CS/D10`、`MOSI/D11`、`MISO/D12` 以及 `SCK/D13` 引脚，这`D11`、`D12` 以及 `D13` 引脚是被RT-Thread SPI设备框架接管的，不需要直接操控这些引脚。用户需要操作 `D10` 片选引脚。直接引用`#include <SPI.h>`（Arduino官方SPI头文件）即可使用。在使用SPI功能后，`D10` 和 `D11` 的PWM功能将会不可逆失效，转为SPI功能。
 
 ### 3.3 串口