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MSPM0G1106: Monitor line level status while in UART mode

Munan Xu
Expert 5550 points

Part Number: MSPM0G1106

Hello,

I have a customer who wants to be able to read whether the digital IO level of a UART pin is high or low while the pin is configured for UART.

Is there any way to do this without changing the pin function in IOMUX? 

Munan

  • 0
    TI__Genius 12790 points

    Hello Munan,

    It seems a strange application. If customer want to check the level of UART pin when the UART communication is going, they just need to check the transferred data. If customer want to check the level of UART pin when UART communication is over, they need to change the pin function of IOMUX. There is DOUT31 and DIN31 register in M0, but it seems that when UART communication is going, they won't be set. You can try to do it too. The information about these registers can be found in user guide.

    Best Regards,

    Janz Bai