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Kmax18
Senior II
March 26, 2023
Solved

STM8S105C4T6, inverting the UART2_TX signal

  • March 26, 2023
  • 1 reply
  • 2110 views

I need an active high UART signal. Yes, the STM8S UART2_TX signal is active, but for hardware reasons I must invert the active low PCB output (UART2_TX). An easy solution would be a programmable STM8S feature to invert the signal. The reference manual does not list that option. Is that correct?

Thank you for your response.

    This topic has been closed for replies.
    Best answer by Peter BENSCH

    Correct, unlike STM32, STM8 has no feature to invert UART TX.

    Does it answer your question?

    Regards

    /Peter

    1 reply

    Peter BENSCH
    Peter BENSCHBest answer
    Technical Moderator
    March 26, 2023

    Correct, unlike STM32, STM8 has no feature to invert UART TX.

    Does it answer your question?

    Regards

    /Peter

    In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
    Kmax18
    Kmax18Author
    Senior II
    March 26, 2023

    Thank you. Yes, that answers my question.

    Peter BENSCH
    Technical Moderator
    March 27, 2023

    Great! I hope you find a way to invert the signal externally.

    If the problem is solved, please mark this thread as answered by selecting Select as best, as also explained here. This will help other users find that answer faster.

    Good luck!

    /Peter

    In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.