spi_flash.h使用mtd_nor产生编译错误

发布于 2021-01-06 14:03:08 浏览：1391 订阅该版

1 环境说明：rtt版本4.0.3，单片机stm32f407vet6（4.0.2也一样）

2 使用说明：需要做一个mtd设备，然后将fal分区挂载到文件系统上。
```c
struct rt_device *mtd_dev = RT_NULL;
mtd_dev = fal_mtd_nor_device_create(FS_PARTITION_NAME);
```

3 问题:spi_flash.h编译报错
```c
rt-thread\components\drivers\spi\spi_flash.h(34): error:  #70: incomplete type is not allowed
      struct rt_mtd_nor_device 			mtd_device;
board\ports\spi_flash_init.c: 0 warnings, 1 error
compiling fal_flash_sfud_port.c...
".\build\keil\Obj\sc_board_app.axf" - 1 Error(s), 0 Warning(s).
```

4 解决：
4.1 这个是原本的spi_flash.h的代码：
```c
/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2016/5/20      bernard      the first version
 */

#ifndef SPI_FLASH_H__
#define SPI_FLASH_H__

struct spi_flash_device
{
    struct rt_device                flash_device;
    struct rt_device_blk_geometry   geometry;
    struct rt_spi_device *          rt_spi_device;
    struct rt_mutex                 lock;
    void *                          user_data;
};

typedef struct spi_flash_device *rt_spi_flash_device_t;

#ifdef RT_USING_MTD_NOR
struct spi_flash_mtd
{
    struct rt_mtd_nor_device 			mtd_device;
    struct rt_spi_device *     			rt_spi_device;
    struct rt_mutex            			lock;
    void *                     			user_data;
};
#endif

#endif

```

4.2 这个是更改后的代码:
```c
/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2016/5/20      bernard      the first version
 */

#ifndef SPI_FLASH_H__
#define SPI_FLASH_H__

#include <rtdevice.h>

#ifdef RT_USING_MTD_NOR
#include "drivers/mtd_nor.h"
#endif

typedef struct spi_flash_device *rt_spi_flash_device_t;

#endif

```

4.3 更改地方：
```c
#include <rtdevice.h>

#ifdef RT_USING_MTD_NOR
#include "drivers/mtd_nor.h"
#endif
```

5 求助
请各位坛友帮我分析下是否是该问题,我的更改是否正确，以及是否有其他更好的方法。