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STM32F7: Do not generate redundant IN tokens #11103
When STM32F746-DISCO board was being used in (unsupported) USBHost mode,
In our application the clocks frequencies are:
We have captured the raw USB High-Speed traffic using OpenVizsla.
The high frequency of the IN/NAK pairs is not the biggest problem.
The USB MSD devices won't have extra data available on Bulk IN endpoint
The problem manifested not only on Bulk endpoints, but also during
Without this commit, in DATA stage, after the ACK was received, the host
In the fault case the next SETUP was sent only after 510 ms, which
With this commit the next SETUP is sent 120 us after the STATUS stage ACK.
Pull request type