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Altera_Forum's avatar
Altera_Forum
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20 years ago

SD card - DE2

Hi, Sorry for my english, I'm Brazilian. I have a Altera DE2 kit and I want to use SD Card on uCLinux. I have to make the same steps used for Compat Flash ? http://nioswiki.jot.com/w...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Ok a little more info on progress (at least there is some).

Found that the driver has a hard time telling that we have an SD card and not a MMC card. I commented out the if(mmc_card_sd(card)) line in mmc.c file. Now we get an unknown partition table. Also we cannot have the card inserted when the processor starts up. Also inserting a card will produce spurious results. Sometimes it gives me a command line some times it refuses to give me a command line back...

My hardware counterpart thinks it might be a clocking issue. Anyone have any clues.

Thanks for your time.