elm_fatfs_FAT文件系统

文件系统与存储设备创建成功，而后mkdir失败了

发布于 2021-08-23 16:42:59 浏览：2133 订阅该版

芯片外存是128Mb spi flash的GD25Q127CSIG，使用
elm fat文件系统，menuconfig相应配置过了。具体步骤如下：
1 初始化 DFS 框架，成功
![IMG_20210823_145125.jpg](https://oss-club.rt-thread.org/uploads/20210823/8673252b084825f5a58b75eeafcb947a.jpg.webp)
2 初始化具体文件系统，就是中间层文件系统的初始化，成功
![IMG_20210823_145258.jpg](https://oss-club.rt-thread.org/uploads/20210823/30581e2204ac9cc9bfc3f94563ae3de2.jpg.webp)
3 初始化存储设备，rt_sfud_flash_probe成功
![IMG_20210823_145208.jpg](https://oss-club.rt-thread.org/uploads/20210823/47b31690651dbc5549f238888f67ea66.jpg.webp)
![IMG_20210823_145227.jpg](https://oss-club.rt-thread.org/uploads/20210823/614258d9bdc7cb36e68d6eee194b29e7.jpg.webp)
4 格式化文件系统与文件系统的挂载，成功![IMG_20210823_145526_edit_107032344347729.jpg](https://oss-club.rt-thread.org/uploads/20210823/c275968fbcfa30effa2953f64c277742.jpg.webp)
5 执行创建文件夹，mkdir（“/resource"，0x777）失败，打断点依次进入
![IMG_20210823_145844_edit_107221531651346.jpg](https://oss-club.rt-thread.org/uploads/20210823/d82d7655bfe3fd498e1446d27a64e3b5.jpg.webp)
进入dfs_file_open函数
![IMG_20210823_150247_edit_107472114297142.jpg](https://oss-club.rt-thread.org/uploads/20210823/9ced85991da64c22b72c710320851c6c.jpg.webp)
进入dfs_elm_open函数![IMG_20210823_150938_edit_107910864686137.jpg](https://oss-club.rt-thread.org/uploads/20210823/92eb0242bac1ea1119ef70978adff457.jpg.webp)
进入f_mkdir函数![IMG_20210823_151949_edit_108027993068932.jpg](https://oss-club.rt-thread.org/uploads/20210823/826fb57d8fcdb2cbb5e7519946f6c53a.jpg.webp)
进入create_chain函数![IMG_20210823_152213_edit_108176515977242.jpg](https://oss-club.rt-thread.org/uploads/20210823/1d806b705b66771a081dff944378913d.jpg.webp)
进入get_fat函数![IMG_20210823_152537_edit_108371990130338.jpg](https://oss-club.rt-thread.org/uploads/20210823/8d0e21295043257f56de7cefcf0da071.jpg.webp)
进入move_window函数![IMG_20210823_152951_edit_108635156513631.jpg](https://oss-club.rt-thread.org/uploads/20210823/e79fe0b506245302ea3eb41bc7cbc489.jpg.webp)
进入disk_read函数
![1629707510646.jpg](https://oss-club.rt-thread.org/uploads/20210823/0f71e4bbab0173074bb441ef8489c044.jpg.webp)
进入rt_device_read函数![IMG_20210823_153401_edit_108877816705260.jpg](https://oss-club.rt-thread.org/uploads/20210823/72b453b09ac664dcb963a9faa57fe0fc.jpg.webp)
进入rt_sfud_read和sfud_read函数，就一直在sfud_read_status那里循环了，status一直是ff，不对呢![IMG_20210823_153533_edit_108974915198996.jpg](https://oss-club.rt-thread.org/uploads/20210823/382eee7c04b1507d6c197bf16e1100c4.jpg.webp)
![IMG_20210823_153706_edit_109080244290125.jpg](https://oss-club.rt-thread.org/uploads/20210823/e6ca282825fbd6a8b089efd1f38c111b.jpg.webp)
![IMG_20210823_154100_edit_109295808852072.jpg](https://oss-club.rt-thread.org/uploads/20210823/030bbeb4741085ece17596a5e642fe19.jpg.webp)

麻烦大佬帮忙看看哪里的问题呢?