Skip to main content
Hputk.1
Associate
January 9, 2021
Question

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 wor

  • January 9, 2021
  • 3 replies
  • 790 views

..

    This topic has been closed for replies.

    3 replies

    Tesla DeLorean
    Guru
    January 9, 2021

    If it uses GPIOG bank you must enable VCCIO

    Tips, Buy me a coffee, or three.. PayPal VenmoUp vote any posts that you find helpful, it shows what's working..
    Hputk.1
    Hputk.1Author
    Associate
    January 10, 2021

    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
    Hputk.1Author
    Associate
    January 11, 2021

    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