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Altera_Forum's avatar
Altera_Forum
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16 years ago

SD Card not working on DE1 board

Hi, I try to run the "DE1_SD_Card_Audio" demo from the supplied CD, using 2 different SD cards: - an old 16 Mb (!!!) SanDisk SD card - a brand new 4Gb SanDisk HSSD card I formatted bot...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Still doesn't work.

However, it looks like a compatibility issue with both of my SD Cards: tracing down at the signal level, everything is working electronically, but I don't get the expected answer to the SEND_OP_CMD reset command (0x01 == "In idle state" or 0x05 == "In idle state + Invalid command" instead of 0x00).

I will post my progress in this thread.

Michel