同时挂载W25Q128和SD卡的问题

发布于 2020-03-28 10:24:47 浏览：1774 订阅该版

* 本帖最后由 jeasey 于 2020-3-28 10:27 编辑 *

我现在只挂载W25Q128是没有问题的。
 if (dfs_mount("W25Q128B", "/", "elm", 0, 0) == 0) 
 {
 rt_kprintf("W25Q128B mount success !!! ");
 }
 else
 rt_kprintf("W25Q128B mount failed !!! ");

只挂载SD也是没有问题的。
 if(rt_device_find("sd0") != RT_NULL) 
 {
 if (dfs_mount("sd0", "/", "elm", 0, 0) == RT_EOK)
 {
 rt_kprintf("sd card mount success ");
 }
 else
 {
 rt_kprintf("sd card mount failed! ");
 }
 }

把SD卡挂载到W25Q128下就有问题了。已经再W25Q128B根目录下建立了sd文件夹
 if (dfs_mount("W25Q128B", "/", "elm", 0, 0) == 0) 
 {
 rt_kprintf("W25Q128B mount success !!! ");
 }
 else
 rt_kprintf("W25Q128B mount failed !!! "); 
 
 if(rt_device_find("sd0") != RT_NULL) 
 {
 if (dfs_mount("sd0", "/sd", "elm", 0, 0) == RT_EOK)
 {
 rt_kprintf("sd card mount success ");
 }
 else
 {
 rt_kprintf("sd card mount failed! ");
 }
 }

提示信息是这样的：
 \ | /
- RT -     Thread Operating System
 / | \     4.0.3 build Mar 28 2020
 2006 - 2019 Copyright by rt-thread team
[SFUD] Find a Winbond flash chip. Size is 16777216 bytes.
[SFUD] W25Q128B flash device is initialize success.
msh />[32m[I/SDIO] SD card capacity 1935360 KB.[0m
found part[0], begin: 68096, size: 1.865GB
W25Q128B mount success !!!
[31m[E/DFS] There is no space to mount this file system (elm).[0m
sd card mount failed!

ls
Directory /:
111.txt 20 
sd <DIR>

把W25Q128挂载到SD下就也不行。已经再SD根目录下建立了sp文件夹
 if(rt_device_find("sd0") != RT_NULL) 
 {
 if (dfs_mount("sd0", "/", "elm", 0, 0) == RT_EOK)
 {
 rt_kprintf("sd card mount success ");
 }
 else
 {
 rt_kprintf("sd card mount failed! ");
 }
 } 
 if (dfs_mount("W25Q128B", "/sp", "elm", 0, 0) == 0) 
 {
 rt_kprintf("W25Q128B mount success !!! ");
 }
 else
 rt_kprintf("W25Q128B mount failed !!! ");

输出信息是这样的：
 \ | /
- RT - Thread Operating System
 / | \ 4.0.3 build Mar 28 2020
 2006 - 2019 Copyright by rt-thread team
[SFUD] Find a Winbond flash chip. Size is 16777216 bytes.
[SFUD] W25Q128B flash device is initialize success.
msh />[32m[I/SDIO] SD card capacity 1935360 KB.[0m
found part[0], begin: 68096, size: 1.865GB
sd card mount success
[31m[E/DFS] There is no space to mount this file system (elm).[0m
W25Q128B mount failed !!!
msh />ls
Directory /:
sp <DIR> 
msh />

请多多指教！！谢谢！！