Pico Ultra pinout mismatch in wiki and dts

  • Hello, the reason why you can't start UART4_M1 may be due to pin conflict, you can try to disable RGB to solve this problem.
    About UART0_M0, because it is the default serial port.
  • I tried disable RGB for sure, but UART4_M0 works and UART4_M1 does not.

    UART0_M0 does not presented on wiki image that the point, only UART0_M1 is available and it works as expected.

    *Latest Ubuntu image from G disk was used.
  • cem wrote: 2024-10-20 23:36 I tried disable RGB for sure, but UART4_M0 works and UART4_M1 does not.

    UART0_M0 does not presented on wiki image that the point, only UART0_M1 is available and it works as expected.

    *Latest Ubuntu image from G disk was used.
    Regarding UART0M0 you can pinctrl in dtsi to give luckfox-config the option to reserve it, it may not be used all the time. uart4_m1 is indeed missing, just change the node for UART4 in dtsi to something like the following
    &uart4 {
    pinctrl-0 = <&uart4m0_xfer &uart4m1_xfer>;
    };
  • Thank you!