Nucleo-F303RE USB HID Not working

[samsamm777]

I'm prototyping a project, and im struggling to get USB HID working on the Nucleo F303RE board. I've connected an external micro-usb breakout board to the nucleo via the PA12 & PA11 pins as configured in the CubeIDE. However running the most basic usb hid device configuration, i see no USB device connect to my PC.

I have run the exact same test on a Nucleo F042K6, and it works just fine. So i dont know whats wrong with the F303RE board. I checked schematics and both are similar for the usb pins. Also both clocks have 48Mhz on the USB. So that should be fine.

Anyone have any ideas why it doesnt work?

[waclawek.jan]

The 'F3 does not have the 1.5kOhm pullup on DP integrated, you need to add it externally.

JW

[samsamm777]

Ahhh! Excellent, thanks. Is this documented anywhere?

[waclawek.jan]

JW