10 外部flash分区操作与分文件夹操作的区别

发布于 2021-12-21 20:41:19 浏览：835 订阅该版

1 个回答

出出啊 2021-12-22

恃人不如自恃，人之为己者不如己之自为也

杰瑞鼠 2021-12-22

2024龙行天下

出出啊 2021-12-22

恃人不如自恃，人之为己者不如己之自为也

杰瑞鼠 2021-12-22

2024龙行天下

@出出啊  挂载romfs后确实可以在"/"下创建几个文件夹，然后分区挂载在这个文件夹路径上。但同样的2各分区，一个成功一个失败，找不到原因。成功的那一个路径没有问题。
    USB依然没有任何反应。
![image.png](https://oss-club.rt-thread.org/uploads/20211222/dfe4477ba8bb31cc9c49ae7bdb6875ff.png)

![image.png](https://oss-club.rt-thread.org/uploads/20211222/1b78374b728cbfb315f95eeb94591f13.png)
```
int W25q_dfs_mount_init(void)
{

#if 1
    struct fal_blk_device *blk_dev= RT_NULL;

fal_init();

/* create block device */
  blk_dev = (struct fal_blk_device *) fal_blk_device_create(FS_UpDate_PARTATION);
  if (blk_dev == RT_NULL)
      LOG_D("Can't create a block device on '%s' partition.\n", FS_UpDate_PARTATION);
  else
      LOG_D("Create a block device successful on the %s partition of flash .\n", FS_UpDate_PARTATION);
  if (dfs_mount(FS_UpDate_PARTATION, FS_UpDate_MOUNT_POINT, "elm", 0, 0) == 0)
  {
      LOG_D("mount %s OK\r\n", FS_UpDate_PARTATION);
  }else{
      SysFsFormat("elm",FS_UpDate_PARTATION);/*格式化udisk分区为elm文件系统*/
      if(RT_EOK != dfs_mount(FS_UpDate_PARTATION, FS_UpDate_MOUNT_POINT, "elm", 0, 0))
      {
          LOG_D("mount %s failed\r\n", FS_UpDate_PARTATION);
      }
  }

/* create block device */
 blk_dev = (struct fal_blk_device *) fal_blk_device_create(FS_UDISK_PARTATION);
 if (blk_dev == RT_NULL)
     LOG_D("Can't create a block device on '%s' partition.\n", FS_UDISK_PARTATION);
 else
     LOG_D("Create a block device successful on the %s partition of flash .\n", FS_UDISK_PARTATION);
 if (dfs_mount(FS_UDISK_PARTATION, FS_UDISK_MOUNT_POINT, "elm", 0, 0) == 0)
 {
     rt_kprintf("mount %s OK\r\n", FS_UDISK_PARTATION);
 }else{
     SysFsFormat("elm",FS_UDISK_PARTATION);/*格式化udisk分区为elm文件系统*/
     if(RT_EOK != dfs_mount(FS_UDISK_PARTATION, FS_UDISK_MOUNT_POINT, "elm", 0, 0))
     {
         rt_kprintf("mount failed\r\n");
     }
 }

return RT_EOK;
```
![image.png](https://oss-club.rt-thread.org/uploads/20211222/f07931463fb1992f37e3f99151245ff2.png)