CDC with video hang
#2751
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Dear all,
I have a STM32H747 (Portenta based cpu) equipped with an external PHY. I merged the video descriptor with the CDC one in order to have at the same time a video and a serial transfers. Video and CDC use bulk transfers. As long as the activity on the CDC channel is less than ~20char/s everything works well. My video sends images of 752 x 480 x 16bits images @ ~25 images/s. Now, when I start to use intensively the CDC channel (~100 or greeter chars/s), after a while (< 30 seconds) the video channel hangs (but the CDC continue to work). Difficult to know what is happening. Any ideas? Does it exist a way to make the priority on the video transfer ?
BR, Edo
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