I had tried 100MHz clock but failed too, USB communication was unstable.gersch07 wrote: ↑Mon Feb 03, 2020 10:59 pmDear all,
I’ve followed the steps above to compile MicroPython (including support for a Winbond W25Q128 Flash Chip) and successfully flashed it using the ST-Link Utility. However, the ST Virtual COM port has so far only appeared twice after plugging in the USB cable... most of the time the device remains undetected, showing „Error 43“ in the Windows device manager. I‘m not sure if this is related, but in the „STM32duino“ forum people have reported that running the MCU at 100 MHz causes the USB clock to be slightly off...
Has anyone of you had similar trouble? I’ve also opened an issue on GitHub.
Thanks for your help!
96MHz clock is a good option for micropython.
Hope this can help.