Hello,
I have a problem with communication between my PC and MCU. I have connected my project according to this diagram (with external 12MHz oscillator):
I attempted to connecting the 1,5k GPIO pin (PA10) to control the pull up. Then I connected a 1,5K resistore to 3V3.
Additionally, I experimented with connecting the VBUS with resistor devider (33k and 82k) to the PA9 and then I tried to connecting VBUS directly to PA9.
Furthermore, I installing the STM32 Virtual COM Port Driver on win7 32bit and win10 (win8 64bit). Both have the same result:
Same result: DeviceFailedEnumeration : Unknown Device.
Do you have any idea why this enumeration issue is occurring?
Thank you very much.
Sincerely
Radek
