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Is any redundancy necessary when using USB HID stack ?

Question asked by VDM on Sep 2, 2011
Hi all,

I am using ST's USB HID stack on an STM32.

I communicate with a PC software, and I sometimes got strange behaviours, but I'm not sure if it comes from wrong data during communications.
So, I wonder if I need to add a CRC ( or whatever ) to check data integrity in each HID packet ? I don't know if data integrity checking is implemented inside the USB stack itself or not ...

Thanks for your help.
Best regards,