rt-thread驱动篇(04)---STM32F429单片机模拟SPI FLASH驱动添加

目录

一、添加驱动

1、新增模拟SPI驱动文件(drv_soft_spi.c/h)

2、新增模拟SPI配置文件(soft_spi_config.h)

二、向工程添加文件

1、修改..\board\Kconfig

2、修改\rt-thread\components\drivers\Kconfig

3、修改..\libraries\HAL_Drivers\SConscript

4、修改..\libraries\HAL_Drivers\drv_config.h

三、使用驱动

1、ENV配置

2、设备初初始化

一、添加驱动

1、新增模拟SPI驱动文件(drv_soft_spi.c/h)

参考drv_spi.c/h，编写模拟SPI驱动

2、新增模拟SPI配置文件(soft_spi_config.h)

拷贝 \libraries\HAL_Drivers\config\f4\spi_config.h，重命令为soft_spi_config.h

#ifndef __SOFT_SPI_CONFIG_H__
#define __SOFT_SPI_CONFIG_H__

#include <rtthread.h>

#ifdef __cplusplus
extern "C" {
#endif

// CS(PG10) SCK(PG12)  MISO(PF8) MOSI(PF9)
#ifdef BSP_USING_SOFT_SPI1
#ifndef SOFT_SPI1_BUS_CONFIG
#define SOFT_SPI1_BUS_CONFIG                             \
    {                                                    \
        .mosi_pin.GPIOx = GPIOF,                         \
		.mosi_pin.GPIO_Pin = GPIO_PIN_9,                 \
		.miso_pin.GPIOx = GPIOF,                         \
		.miso_pin.GPIO_Pin = GPIO_PIN_8,                 \
		.sclk_pin.GPIOx = GPIOG,                         \
		.sclk_pin.GPIO_Pin = GPIO_PIN_12,                \
        .bus_name = "soft_spi1",                         \
    }
#endif /* SOFT_SPI1_BUS_CONFIG */
#endif /* BSP_USING_SOFT_SPI1 */

#ifdef __cplusplus
}
#endif

#endif /*__SPI_CONFIG_H__ */

二、向工程添加文件

1、修改..\board\Kconfig

新增下内容

menu "Onboard Peripheral Drivers"
    ...
    config BSP_USING_SPI_FLASH
        bool "Enable SOFT-SPI FLASH (W25Q64)"
        select BSP_USING_SOFT_SPI
        select RT_USING_SFUD
        select RT_SFUD_USING_SFDP
        default n
   ...

menu "On-chip Peripheral Drivers"
   ...
	menuconfig BSP_USING_SOFT_SPI
        bool "Enable SOFT SPI BUS"
        default n
        select RT_USING_SOFT_SPI
        if BSP_USING_SOFT_SPI
            config BSP_USING_SOFT_SPI1
            bool "Enable SOFT SPI1:CS(PG10) SCK(PG12)  MISO(PF8) MOSI(PF9)"
            default n
        endif
  ...

2、修改\rt-thread\components\drivers\Kconfig

新增如下内容

config RT_USING_SPI
    bool "Using SPI Bus/Device device drivers"
    default n

    if RT_USING_SPI  
        ...
        config RT_USING_SOFT_SPI //新增
                bool "Enable SOFT SPI mode"
                default n
                
                ...

3、修改..\libraries\HAL_Drivers\SConscript

新增如下内容

if GetDepend(['RT_USING_SOFT_SPI']):
    src += ['drv_soft_spi.c']

4、修改..\libraries\HAL_Drivers\drv_config.h

新增如下内容

...
#include "f4/soft_spi_config.h" 
...

三、使用驱动

1、ENV配置

开启模拟SPI

开启SFUD组件

2、设备初初始化

在spi_flash_init.c中添加如下内容，注册softspi1总线，注册softspi10设备并挂载到softspi1总线上；使能SFUD驱动W25Q64块

#include <rtthread.h>
#include "spi_flash.h"
#include "spi_flash_sfud.h"
#include "drv_soft_spi.h"

#if defined(BSP_USING_SPI_FLASH)
static int rt_hw_spi_flash_init(void)
{
    __HAL_RCC_GPIOG_CLK_ENABLE();
    rt_soft_spi_device_attach("softspi1", "softspi10", GPIOG, GPIO_PIN_10);

    if (RT_NULL == rt_sfud_flash_probe("W25Q64", "softspi10"))
    {
        return -RT_ERROR;
    }

    return RT_EOK;
}
INIT_COMPONENT_EXPORT(rt_hw_spi_flash_init);
#endif