Help with reading/writing from/to SD card using FAT FS

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hello everyone,

i have started working microsd card using cortex m , fat fs provided freertos. able create .txt file , write strings in on sd card using f_write(), want proceed further , write particular location in file , read location again over-write on particular written string , search string inside .txt file. have following api access sd card not sure how achieve want.

f_initvolume()   f_delvolume()   f_format()      f_getfreespace()   f_findfirst()     f_findnext()
f_getserial()   f_mkdir()           f_chdir()        f_rmdir()           f_getcwd()      f_open()
f_close()           f_flush()        f_write()        f_read()             f_seek()         f_tell()
f_rewind()      f_putc()         f_getc()         f_seteof()           f_truncate()    f_eof()
f_delete()           f_filelength()

their respective description can found on page:

http://www.freertos.org/freertos-plus/freertos_plus_fat_sl/freertos_plus_fat_sl.shtml

if has knowledge grateful help.

regards,
owais



Arduino Forum > Products > Arduino Due (Moderator: fabioc84) > Help with reading/writing from/to SD card using FAT FS


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