Is ZedBoard SD reader compatible with ultra high speed SD cards?

I would like to know if the Zedboard SD reader is compatible with the SD cards new generation, the ultra high speed SD cards. I also would like to know if there could be performance benefits. Thanks a lot.

0 Former Member over 12 years ago

I am using SD card that's marked with "UHS Speed Class 1" and "class 10" with Zedboard. The SD card boots up significantly faster than regular SD cards.
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0 Former Member over 12 years ago

I'm also using 32GB SanDisk UHS Speed Class 1 (U1) card without any problems.
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0 brendansimon over 10 years ago

Which 32GB SanDisk card did you use that worked?

I've tried Sandisk Ultra UHS-1 32GB MicroSD (with adapter) and the linux kernel hung during boot - before even trying to mount the rootfs.

My Sandisk Ultra UHS-1 16GB MicroSD card fails the same way.

My Sandisk Ultra UHS-1 8GB MicroSD card works fine.

Why does the 8GB work? Did I just get lucky?
Why does 32GB fail (same brand, type, etc) ?

I tried a 16GB Samsung EVO UHS-1 and that worked. I will try a Samsung 32GB EVO soon.

However, I don't feel confident with all this. Is it just pot luck? Surely there must be some spec that says these types of cards should or shouldn't work.

Any help greatly appreciated.
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