# Forum: ARM programming with GCC/GNU tools chan fat R0.05a

 Author: Jonathan Dumaresq (dumarjo) Posted on: 2008-03-07 15:35

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Hi,

I have used the martin port of the cahn fat with sucess. But The seek
function is not working on file bigger than 2Megs. So I would like to
use the R0.05a but I have some problem to use it on my SAM7X. The
f_write function doesn work well. I get FR_RW_ERROR error.

The f_read and f_open seem to work correctly.

I use it with an mmc.

If someone have use it with success, is it possible to have your input

regards

Jonathan

 Author: Jonathan Dumaresq (dumarjo) Posted on: 2008-03-10 15:24

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Jonathan Dumaresq wrote:
> Hi,
>
> I have used the martin port of the cahn fat with sucess. But The seek
> function is not working on file bigger than 2Megs. So I would like to
> use the R0.05a but I have some problem to use it on my SAM7X. The
> f_write function doesn work well. I get FR_RW_ERROR error.
>
> The f_read and f_open seem to work correctly.
>
> I use it with an mmc.
>
> If someone have use it with success, is it possible to have your input
>
> regards
>
> Jonathan

OK I got it working

We must use it in byte-to-byte access.

Jonathan

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