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AM68A: WKUP_UART0 as Debug Console

Amandio Neves
Prodigy 250 points
Part Number: AM68A

Tool/software:

Hello,

We have a custom board that is currently using main_uart3 for the debug console. Due to some changes, we need to reassign the uart that the debug console is using. We had originally identified wkup_uart0 as a suitable replacement, but I'm seeing references throughout the forum and in this document:

https://www.ti.com/lit/pdf/spradg5

that wkup_uart0 is reserved for DMSC logging. Does this mean we cannot use it as the debug console? Will there be a conflict? Is there a way to change or disable the DMSC logging if we needed to?

Thanks!

  • 0
    TI__Guru** 111415 points

    Hi Amandio,

    Amandio Neves said:
    hat wkup_uart0 is reserved for DMSC logging. Does this mean we cannot use it as the debug console? Will there be a conflict?

    The Wkup UART is the only UART in Wkup domain, where the DMSC/TIFS core resides. This UART is the only supported UART for TIFS firmware to use for debugging.

    Amandio Neves said:
    Is there a way to change or disable the DMSC logging if we needed to?

    Yes, the TIFS tracing support though is dictated through a board configuration, and if you have disabled the debugging support, then the UART itself is free to be used by some other processor.

    The App Note already makes a reference to this. Please also see the struct boardcfg_dbg_cfg structure in the TI-SCI documentation for details.

    regards

    Suman