Forum: System Workbench for STM32

USB and L4 discovery board

got my hand on a L0 discovert board. Created the USB cdc code with STM Cube. buolds and works like a charm. Enumerates once you plug it in.

Still raises the question what’s wrong with the L4 discovery?

I checked the DP and DM line seems to be hooked up fine from the connector to the CPU pins. Ran a LA trace. Onc ethe connecytor is plugged in. I dont see any edges on the DP and DM lines. the lines stay low all the times.

Mat