I have a NUCLEO-L4R5ZI. I cannot get the virtual com thru STLINK V2 working My PC sees the com port but printf (from other nucleo 144 boards ) does not work. I have tested it with UART3 and LPUART1. Clock is set to Crysta, like for example F767Zi works

[Tesla DeLorean]

If it uses GPIOG bank you must enable VCCIO

[Hputk.1]

Hi Tesla

I tried to find VCCIO, but could not find it inthe project or Firmware files STM32Cube_FW_F4_V1.25.0

In other answers in this topic was mentioned

...HAL_PWREx_EnableVddIO2();

But it didn't help

Best wishes HPu

[Hputk.1]

Hi all

This is solved!?

I found LPUART1 (is it not beside UART:s, my error in alfabetization)

All works

Thank you for help Tesla