外部flash文件系统例程的疑问

海波 · 发表于 2016-10-27 11:56:34

res_flash = f_mount(&fs,"0:",1);
printf("\r\n f_mount res_flash=%d \r\n",res_flash);
问下这个res_flash的变量是代表什么？

fire · 发表于 2016-10-27 12:02:33

在程序编译了的情况下按 F12 或者鼠标右键 go to definition of f_mount这个函数，看看这个函数的注释就知道返回值是什么了。

海波 · 发表于 2016-10-27 14:29:17

fire 发表于 2016-10-27 12:02
在程序编译了的情况下按 F12 或者鼠标右键 go to definition of f_mount这个函数，看看这个函数的注释就知 ...

查到了，以后我尽量自己动手，不问这种问题啦！
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_SHARE */
FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
} FRESULT;

flyleaf · 发表于 2016-10-27 14:34:46

海波发表于 2016-10-27 14:29
查到了，以后我尽量自己动手，不问这种问题啦！
typedef enum {
FR_OK = 0, /* (0) Succeeded */

6666，学得快

fire · 发表于 2016-10-27 14:36:59

海波发表于 2016-10-27 14:29
查到了，以后我尽量自己动手，不问这种问题啦！
typedef enum {
FR_OK = 0, /* (0) Succeeded */

666666666

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外部flash文件系统例程的疑问

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