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USB Host MSC - NULL byte in 512 byte block read.

Damange92
Associate II

Hello everyone,

I'm using the STM32 Host library with FreeRTOS FAT, but when i read from a specific usb key, I always get a NULL ( 0x00 ) inserted at the beginning of the second 512 bytes block I read. If I put a breakpoint between every packet they are all ok. This happens only with one 512 MB usb Key. With all the others one everything works fine. I need i rock solid firmware so i can't ignore this problem and change the usb key.

Any idea of what i need to look for?

Thank you,

Luca

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