F4片上flash用FAL挂载dfs，遇到问题

发布于 2021-01-21 22:12:37 浏览：1248 订阅该版

![Snipaste_2021-01-21_22-05-45.png](https://oss-club.rt-thread.org/uploads/20210121/3c29f5efd0635ab7abdd912a32e9d43f.png)

问题如图

```
/*
 * File      : fal_cfg.h
 * This file is part of FAL (Flash Abstraction Layer) package
 * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
 *
 *  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 2 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, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Change Logs:
 * Date           Author       Notes
 * 2018-05-17     armink       the first version
 */

#ifndef _FAL_CFG_H_
#define _FAL_CFG_H_

#include <rtconfig.h>
#include <board.h>

// #define NOR_FLASH_DEV_NAME             "norflash0"

/* ===================== Flash device Configuration ========================= */
extern const struct fal_flash_dev stm32_onchip_flash;
// extern struct fal_flash_dev nor_flash0;

/* flash device table */
#define FAL_FLASH_DEV_TABLE                                          \
{                                                                    \
    &stm32_onchip_flash,                                             \
}
/* ====================== Partition Configuration ========================== */
#ifdef FAL_PART_HAS_TABLE_CFG
/* partition table */
#define FAL_PART_TABLE                                                                     \
{                                                                                          \
    {FAL_PART_MAGIC_WORD,        "app",          "onchip_flash", 0,          128*1024, 0}, \
    {FAL_PART_MAGIC_WORD,        "filesystem",   "onchip_flash", 128*1024,   512*1024, 0}, \
}

#endif /* FAL_PART_HAS_TABLE_CFG */

#endif /* _FAL_CFG_H_ */

```

```
int main(void)
{
    fal_init();
    struct rt_device *flash_dev = fal_blk_device_create(FS_PARTITION_NAME);
    if (flash_dev == NULL)
    {
        rt_kprintf("Can't create a block device on '%s' partition.\n", FS_PARTITION_NAME);
    }
    else
    {
        rt_kprintf("Create a block device on the %s partition of flash successful.\n", FS_PARTITION_NAME);
    }

if(rt_device_find(FS_PARTITION_NAME) != RT_NULL)
    {
        dfs_mkfs("elm", FS_PARTITION_NAME);

if (dfs_mount(FS_PARTITION_NAME, "/", "elm", 0, 0) == RT_EOK)
        {
            rt_kprintf("onchip elm filesystem mount to '/'\n");
        }
        else
        {
            rt_kprintf("onchip elm filesystem mount to '/' failed!\n");
        }
    }
    else
    {
        rt_kprintf("find filesystem portion failed\r\n");
    }

while (1)
    {
//        LOG_D("Hello RT-Thread!");
        rt_thread_mdelay(1000);
    }

return RT_EOK;
}
```