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AM2732: What does MSS_RS232_TX/RX do?

Corey Minyard
Prodigy 90 points
Part Number: AM2732


Tool/software:

There are two pins, MSS_RS232_RX and MSS_RS232_TX that are not described anywhere I can find in the documentation  What do these pins do?  Can I use them as normal RS232 interfaces, or is this some special debug interface?  How should I wire it in?

Thanks,

-corey

  • 0
    Prodigy 90 points

    I found the topic: AM2732: How to enable AM2732 MSS_RS232_TX/RX, but that doesn't tell me what I need to do with those pins. Do I need to wire them in somehow so the debugger can find them?  Or can I use those pins for other purposes?

  • +1 in reply to Corey Minyard
    TI__Expert 7810 points

    Hi Corey,

    Like mentioned on the post referenced above, the RS232 interface is just meant to enable application load via RS232. If you are using the standard JTAG/UART interface via the XDS emulator then I don't believe they are needed. In our AM273 EVM we pull them up as they are unused:

    It doesn't mean that you can't use the pins at all, the datasheet describes other functions that you can configure those pins to:

    The wiring will depend entirely on what function you decide to use them for.

    Best,

    Daniel