SAM4S ASF-USB very slow. Any options?

Discussion around product based on ARM Cortex M4 core.

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SAM4S ASF-USB very slow. Any options?

Thu Jul 16, 2015 5:13 pm

I have been testing the HID USB on a SAM4S Xplained Pro board. It (should) be set to HIGH speed but it is running very slow. Around 30 seconds to get 80 down the pope. Does anyone have any suggestions as to what I might do to speed it up? If I try to enable FILL or LOW speed , The code send an error telling me that neither are supported on this board. The manual says "The USB Device Port (UDP) is compliant with the Universal Serial Bus (USB) 2.0 full-speed device specification."

Any advice helpful!

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