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at first,I make a program that list all file in SD card with FFIND function.not using RTOS yet,it's work fine.
then,I using RTOS (use RTX) ,every fuction work fine (such as fopen,fclose,etc) except for FFIND) system will crash when it's reach the line with ffind command,all task stop running .
and, no compile error.
someone pls tell me how to solve the problem,thank in advance.
Are you using more than one thread that performs file I/O?
Hi,dear Thank for your reply.
There's only one task that use file I/O function.
below is my program step,
1. using FFIND to list "*.mp3" file 2. use FOPEN 3. use FGET to get data and send to mp3 module 4. FCLOSE when file end
my program crash at FFIND command (if I deleted FFIND line, it worked fine)
Seems to me that you need more stack for the File I/O task. How much stack did you allocate for this task?
Try with stack size of 0x400 (1k Byte). You may reduce the size later till the application still works stable.
You know that sizeof (struct FINFO) = 48 bytes.
Franc