trouble while mounting fat partition using ucos2.lib with RCM4050

Rabbit
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1

Hi All,

I’m trying to use ucos2.lib for a simple http + ftp server.
All works fine if i do not use the rtos, but only by adding

#use uncos2.lib

to my files and the program crashes at

fat_AutoMount(FDDF_USE_DEFAULT);

Yes, only if i add the “#use uncos2.lib” macro! even if i not call any function of the rtos (like OSInit etc…)!

any idea about the cause of the problem?

Thank you

2

Have you followed the instructions in the documentation for using FAT and UC/OS II?

uC/OS-II USERS:
* The FAT API is not reentrant from multiple tasks. If you wish to
use the FAT from multiple uC/COS tasks, #define FAT_USE_UCOS_MUTEX.
* Mutex timeouts or other mutex errors will cause a run-time
error - ERR_FAT_MUTEX_ERROR. The default mutex timeout is 5 seconds
and can changed by #define’ing a different value
for FAT_MUTEX_TIMEOUT_SEC
* You MUST call fat_InitUCOSMutex after calling OSInit() and before
calling FAT API functions
* You must run the FAT in blocking mode (#define FAT_BLOCK)
* You must not call low-level, non-API FAT or write-through cache
functions. Only call FAT functions appended with ‘fat_’ and
with public function descriptions.

Regards,
Peter

2 Likes
3

Thanks Peter, I had missed! Now the filsystem it’s mounted properly.

Now I’ve a new trouble with FTP, (i don’t know if i can ask about it in the same topic)

Using filezilla, the FTP server works very fine if i upload simple .txt files, however when i try to upload something like a pdf or a zip file, the transfer freezes at 100% and the transfer it’s marked as not completed.

It may be due to the TCP buffer length? Or to the stack size of the task?

4

I’d start a new question as otherwise it gets confusing…