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Using other UART on DK-TM4C129X

Raja Ram16
Prodigy 35 points
Other Parts Discussed in Thread: TM4C129XNCZAD

I configured to use UART0 / Virtual COM port via ICDI to send data from MCU to PC. Now, I am looking for a way to use UART to communicate from DK-TM4C129X to another MCU board (Arduino) at 3.3V. How can this be achieved ? Could anyone give a brief description of what needs to be done to setup an other UART on DK-TM4C129 board ?

There was some description to use UART on Page 12 of the user guide. But, I didn't quite understand what should be done ?

Thanks in advance.

  • 0
    TI__Mastermind 22580 points
    Hello Raja,

    I would recommend you to refer the Datasheet of TM4C129XNCZAD device and the schematic of the DK-TM4C129X board (available towards the end of the user's guide: www.ti.com/.../spmu360).

    From the schematic and the datasheet you can decide which GPIOs (of different UARTs) are easily accessible to connect to another board. Based on this information you can pick a UART. On the DK-TM4C129X board most of the GPIOs are accessible. So it should be straight forward to pick a UART.

    If you want to use UART0, then you will have to removed the jumpers on J3 connector (that connect RX and TX of UART0 to ICDI).

    Hope this helps!

    Thanks,
    Sai