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AM67A: remove wkup_uart0 from tidm firmware

Tony Tang
Mastermind 29172 points
Part Number: AM67A

Tool/software:

There are different in this page to enable wkup_uart log for RTOS and lLinux.

https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-j722s/11_01_00_04/exports/docs/mcu_plus_sdk_j722s_11_01_00_15/docs/api_guide_j722s/ENABLE_DM_DEBUG_APPLICATION.html#autotoc_md199

RTOS use： examples/drivers/sciclient/sciclient_get_version/j722s-evm/wkup-r5fss0-0_freertos/ti-arm-clang

Linux use： examples/drivers/ipc/ipc_rpmsg_echo_linux/j722s-evm/wkup-r5fss0-0_freertos/ti-arm-clang/

with ENABLE_DM_TRACE=YES, the generated .out if much larger, >8MByte. while the default configuration generated .out is ~138KByte. so I assume the default configuration disabled detail log output. but it still enabled wkup_uart0 in the wkup_r5f dm firmware, as it there are several lines log during booting up.

now customer want to use wkup_uart as UBOOT/Linux console, need to disable it from tidm firmware? if yes, how?

  • 0
    TI__Guru** 101910 points

    Hello Tony,

    Just to confirm, is the customer running J722S, or AM67A?

    Does the customer want to run a specific prebuilt firmware on the DM R5F, or just the default firmware?

    Please keep in mind that we do not support MCU+ or RTOS development on the AM67A non-Linux cores. So information in the J722S MCU+ SDK docs may not apply to AM67A.

    Regards,

    Nick

  • 0 in reply to Nick Saulnier
    TI__Mastermind 29172 points
    Nick Saulnier said:
    Just to confirm, is the customer running J722S, or AM67A?

    AM67A

    Nick Saulnier said:
    Does the customer want to run a specific prebuilt firmware on the DM R5F, or just the default firmware?

    From the wkup_uart log of Linux SDK11, it still use MCU SDK9.0, does it have 49 days issue.

    Sciserver Testapp Built On: Mar 19 2025 10:50:19
Sciserver Version: 11.0.0-REL.MCUSDK.11.00.00.05+
RM_PM_HAL Version: v11.00.09
Starting Sciserver..... PASSED
[IPC RPMSG ECHO] Version: REL.MCUSDK.09.00.00.16 (Mar 19 2025 10:50:35):
[IPC RPMSG ECHO] Remote Core waiting for messages at end point 13 ... !!!
[IPC RPMSG ECHO] Remote Core waiting for messages at end point 14 ... !!!

    Nick Saulnier said:
    Please keep in mind that we do not support MCU+ or RTOS development on the AM67A non-Linux cores. So information in the J722S MCU+ SDK docs may not apply to AM67A.

    I don't intend to develop wkup_r5f, I am trying to disable wkup_uart from firmware, as one customer need to use wkup_uart as UBOOT/Linux Console, does it need to touch the firmware?

  • 0 in reply to Tony Tang
    TI__Guru** 101910 points

    Hello Tony,

    The AM67A version of DM R5F ipc_rpmsg_echo_linux firmware was not fixed until SDK 11.1, as per
    [FAQ] [Alert] DM R5F can crash in certain conditions: AM62x, AM62Ax, AM62Dx, AM62Px, AM67, AM67A

    You would need to modify the AM67A project to disable the WKUP_UART, and then rebuild the project. Unfortunately that is not supported at this point in time.

    Regards,

    Nick