STM32f070F6P6 USB VCP not working
Hi
I’m having troubles getting the VCP function on a stm32f070f6p6 project to work. I have two different boards with the IC, they seem to work just fine because I can upload und test GPIBs, the SPI interface and the UART ports without problems. Also the board connect to the Dfuse program and I can upload the dfu programs generated from the project hex files.
One board uses a 8MHz crystal. The other uses a 8MHz 3.3V CMOS Oscillator. Both seem to work just fine.
I also increased the stack size to 0x800 and the heap size to 0x400 as recommended and installed the latest drivers. I have some other STM32f070cbt6 boards on which VCP seems to work just fine. They should be the same apart from the package/pin difference and the program memory size shouldnt they?