管理员
最后登录1970-1-1
在线时间 小时
注册时间2013-5-3
|
发表于 2016-8-3 17:52:03
|
显示全部楼层
那就查文件系统的说明,返回值为12,是不是没有fmount?或者是mp3播放的一些地方没有改路径,还是使用flash的路径?
- typedef enum {
- FR_OK = 0, /* (0) Succeeded */
- FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
- FR_INT_ERR, /* (2) Assertion failed */
- FR_NOT_READY, /* (3) The physical drive cannot work */
- FR_NO_FILE, /* (4) Could not find the file */
- FR_NO_PATH, /* (5) Could not find the path */
- FR_INVALID_NAME, /* (6) The path name format is invalid */
- FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
- FR_EXIST, /* (8) Access denied due to prohibited access */
- FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
- FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
- FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
- FR_NOT_ENABLED, /* (12) The volume has no work area */
- FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
- FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
- FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
- FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
- FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
- FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_LOCK */
- FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
- } FRESULT;
复制代码 |
|