I'm running a USB keyboard on an H743. This works completely reliably at all CPU speeds up to and including 400MHz. However, above 400 MHz the connection is no longer reliable. Sometimes the keyboard connects perfectly and then it will work properly ...

I'm still having problems with VBAT current consumption. I've loaded my firmware and the processor behaves correctly in all other respects. I removed all components from the processor to insure that there are no sneak paths for parasitic current dra...

I'm toggling an I/O in the SYSTICK interrupt every 0.5 seconds with the processor running at 168MHz and using an RTC interrupt to wake the CPU from sleep. This all works well and the processor wakes up after the programmed interval. As per the HAL ...