How to waste time making tinyUSB work on GD32F303

 How to spend 2 days on silly things while porting tinyUSB to GD32F303/lnArduino :

  • Be absolutely sure to put the GD32F303 on a bluepill PCB with a bad R10 (i.e. 10k instead of 1.5k)
  • Be absolutely sure to have a dodgy usb connector on that bluepill board (of course it's even better if you bought a full box of replacement usb connectors of all sizes).
  • Use a bad usb cable

The only thing that was an actual real problem is you have to pull down PA12/D+ for ~ 10 ms so that the device is re-detected after reset (thanks Google, RogerClark, victor_pv,...)

Oh well, it kinda works now.




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