On 3/20/21, Flavio Castro Alves Filho <flavio.al...@gmail.com> wrote: > Updating: > > * with the great help from Allan, I could verify that that using usart2 it > works fine > - stm32f4discovery uses usart2 as console > - my board, similar to stm32f4discovery, uses usart1 as console > > * there is a conflict between the usart1 pins and usb device for > stm32f4discovery configuration in nuttx > - according to the kit, the same pins (pa9 and pa10) are used for USB > host device detection > > What I have done: > > * replaced the vbus pin (pa9) to another not used pin > * searched for references about pa10 on the source code, and I couldn't > find anything > > For now, I can see the nuttshell prompt on the serial, but it is not > accepting inputs from the keyboard. > > And USB device is not working. PC is not detecting the device. >
Of course, you need to run in the NuttX terminal: nsh> sercon DCD register : 0000 sercon: Registering CDC/ACM serial driver sercon: Successfully registered the CDC/ACM serial driver stm32_usbsuspend: resume: 0 nsh> ls /dev /dev: console null ttyACM0 ttyS0 nsh> After doing it the USB CDC/ACM will be detected. BR, Alan
