Filesystem

请问ELM文件系统怎么同时挂载SPI FLASH以及SD卡？

发布于 2018-05-30 16:31:13 浏览：5070 订阅该版

18 个回答

我夏了夏天 认证专家 2018-05-30

Life isn't about finding yourself, life is about creating yourself.

395829833 2018-05-30

这家伙很懒，什么也没写！

我夏了夏天 认证专家 2018-05-30

Life isn't about finding yourself, life is about creating yourself.

395829833 2018-05-30

这家伙很懒，什么也没写！

395829833 2018-05-30

这家伙很懒，什么也没写！

我夏了夏天 认证专家 2018-05-30

Life isn't about finding yourself, life is about creating yourself.

395829833 2018-05-30

这家伙很懒，什么也没写！

armink 2018-05-30

这家伙很懒，什么也没写！

395829833 2018-05-30

这家伙很懒，什么也没写！

>你直接挂载到 /dev 分区是有问题的。
>
>要在 SD 卡中新建一个文件夹，比如 /flash 然后：

---

还是挂不上去！ 文件夹创建是OK的

不知道是不是操作方法不对 有劳帮忙看下

/* mount SPI flash as root directory */ 
    if (dfs_mount("flash0", "/", "elm", 0, 0) == 0)
    {
        rt_kprintf("flash0 mount to/.\n");
			  {
					DIR *dirp;
					int  ret;
					dirp = opendir("/sd");
					if(dirp == RT_NULL)
					{
						ret = mkdir("/sd", 0x777);
						if(ret < 0)
						{
						  rt_kprintf("mkdir error!\n");
						}
						else
						{
							/* ??????*/
							rt_kprintf("mkdir ok!\n");
							/* mount sd card fat partition 1 as root directory */
								if (dfs_mount("sd0", "/sd", "elm", 0, 0) == 0)
								{
										rt_kprintf("sd0 mount to /dev.\n");
								}
								else
								{
										rt_kprintf("sd0 mount to /dev failed.\n");
						//			dfs_mkfs("elm","sd0") ;
								}
						}
					}
					else
					{
							/* ??????*/
							rt_kprintf("mkdir ok!\n");
							/* mount sd card fat partition 1 as root directory */
								if (dfs_mount("sd0", "/sd", "elm", 0, 0) == 0)
								{
										rt_kprintf("sd0 mount to /dev.\n");
								}
								else
								{
										rt_kprintf("sd0 mount to /dev failed.\n");
						//			dfs_mkfs("elm","sd0") ;
								}
					}
				}
    }
    else
		{
        rt_kprintf("flash0 mount to/failed.\n");
			/* mount sd card fat partition 1 as root directory */
				if (dfs_mount("sd0", "/", "elm", 0, 0) == 0)
				{
						rt_kprintf("sd0 mount to /dev.\n");
				}
				else
				{
						rt_kprintf("sd0 mount to /dev failed.\n");
		//			dfs_mkfs("elm","sd0") ;
				}
		}