Question
USB Audio issues with repeat INCOMPISOOUT interrupt
I'm having trouble implementing the Audio Device Class example from the STM32CubeMX tool on a STM32H750VBT6.
When run, the USB appears to enumerate properly, installs the default drivers (Windows 7, btw) and shows up properly as a playback device. However, attempting to use a test tone or play through the device in any way reports a failure (no further information forthcoming).
Debugging, I can see that the USB interrupt is being triggered very often, with the flags INCOMPISOOUT (every time) .
What's the reason of INCOMPISOOUT?
And how to fix this issue?