FAT Set File INDEX [solved]

[Alan_37]

Hi

Is this a Bug or i am doing somthing wrong ? , I have 2 files in the SD Card named
A.txt and B.txt, A.txt contain " This is File A " and B.txt contain " This is File B "

In the flowchart I : INIT CARD -> SetFileIndex(0) -> OpenFile(A.txt) - > SetFileIndex(1) -> OpenFile(B.txt) - > ReadStringFromFile(50,13)
-> SendString via RS232 -> SetFileIndex(0) -> ReadStringFromFile(50,13) -> SendString via RS232

I get the below result :

This is File B
This is File B

[Benj]

Hi Alan,

I think I see what's going wrong. The buffer is not being reloaded when you change the file index so the data is coming from the FileB buffer.

How about trying this instead.

INIT CARD -> SetFileIndex(0) -> OpenFile(A.txt) - > SetFileIndex(1) -> OpenFile(B.txt) - > ReadStringFromFile(50,13)
-> SendString via RS232 -> SetFileIndex(0) -> ReadFileSector() -> ReadStringFromFile(50,13) -> SendString via RS232

[Alan_37]

Hi Benj

Thanks for your reply

I have added the ReadFileSector() but i am still getting the same result .

[Benj]

Hi Alan,

In the FAT component properties the Max Concurrent Files property is set to 1, if you change this to 2 does this make any difference?

[Alan_37]

Hi Benj

Yes that was the problem , now it is working fine , i must have missed that setting

can move this to general programming as it was not a bug .

Thanks very much for your support .

[Benj]

Great news, thanks for letting us know.