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Altera_Forum
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13 years ago

SD card ip core: read block error with SDHC

Hello all, my Project is as below: IP CORE SD CONTROLLER with SPI mode, work with 2G SD card but not with card >= 4G; The initialisation flow is all good, no problem. The problem is...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Problem solved, the difference between the addr of sdhc and sdsc is 9bits (512 times), because sdhc requires more space for the addr.

so before reading a block, we should determine either it is hc or sc.