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Honored Contributor
Honored ContributoruClinux MMC SPI Driver
Just to let everyone know, an MMC SPI Driver for Alteras SPI Core (modified) is in the works.. currently, cards can be recognized, read/write, and even partitioned.. but some bugs are being worked ou...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- originally posted by jdhar@Apr 10 2006, 04:46 AM hey hippo,
it's true that reflections are primarily caused by rise/fall times and sso, but, clock frequency does affect it. if you are running ram at 10m, reflections won't matter because they will have died down by the time data is sampled; running at 100m is different because the over/undershoot can be sampled instead of the stable data. so that's why i increase clock rates in testing.
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--- Quote End --- you are right. I am going to trace into memory management to find out the problem. What is the error message on your board before crash?
