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Altera_Forum
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11 years ago

SD card HAL driver cannot write large files correctly

Hi I'm using UP sd card interface and it is worked perfect till I write small files - I can open it on my PC and read. But if file size is more than about 4K I get Windows error when I try to open...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

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Hi,

As I mentioned above, "University Program SD Card IP Core" is not working correctly with files size more than 5 sectors. Also it have issues with big sectors size and big drive size. So I recommend to use FatFS. You can find Nios II example for Altera DE-1 board in here http://www.emb4fun.de/fpga/fatfs/index.html.

Best Regards

Sergey Burenkov

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Thanks for your help!

But how can I modify the project for my DE2-115 board?

Or is there any other less complicated method I can try?

Thank you very much!