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Original question:

PROCESSOR-SDK-J7200: Where is j7200-mcu-r5f0_0-fw

PROCESSOR-SDK-J7200: How to update the MCU firmware after building Linux SDK with yocto

dong yang
Prodigy 50 points
Part Number: PROCESSOR-SDK-J7200

Tool/software:

Hi expert,

I learned the way to  update the MCU firmware in below link:

https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-jacinto7/11_00_00_08/exports/docs/linux/Foundational_Components_IPC_J721E.html#:~:text=For%20updating%20MCU%20(DM)%20R5F%20firmware%20binary%2C%20tispl.bin%20needs%20to%20be%20recompiled%20with%20the%20new%20firmware%20binary%20as%20mentioned%20below%20%3A

The question is after building Linux SDK with yocto, i cannt find the same directory.

I want to know if another method is needed to solve it.

Thanks

  • 0
    TI__Genius 17505 points

    Hi,

    The firmware is pulled from the ti-linux-firmware repository. You can write a bbappend for the ti-dm-fw recipe and patch the ipc_echo_testb_mcu1_0_release_strip.xer5f with your own custom binary.

    Best,
    Jared

  • 0 in reply to Jared McArthur
    Prodigy 50 points

    Hi，

    After searching， i found 2 recipes:

    1.meta-tisdk/recipes-bsp/ti-dm-fw/ti-dm-fw.bbapend

    2.meta-ti/meta-ti-bsp/recipes-bsp/ti-dm-fw/ti-dm-fw.bb

    Is it enough to only modify the ti-dm-fw recipe?Specifically, is it the ti-dm-fw.bbapend above? or create a new one in  other dir?

    Thanks

  • +1 in reply to dong yang
    TI__Genius 17505 points

    Hi,

    Yes, you could modify the ti-dm-fw.bbappend to add your custom firmware.

    Best,
    Jared

  • 0 in reply to Jared McArthur
    Prodigy 50 points

    Hi，

    Thanks a lot.

    I renamed my firmware to "ipc_echo_testb_mcu1_0_release_strip.xer5f", and then replaced the original one by modifying the ti-dm-fw.bbappend.

    Is it necessary to use the same name---ipc_echo_testb_mcu1_0_release_strip? If I want to use my own firmware name, what needs to be modified?

    Regards

  • 0 in reply to dong yang
    TI__Genius 17505 points

    Hi,

    You will have to change the definition of the DM_FIRMWARE variable through a bbappend:

    $ grep -n ipc_echo_testb_mcu1_0_release_strip -r ./*
./meta-ti/meta-ti-bsp/recipes-bsp/ti-dm-fw/ti-dm-fw.bb:41:DM_FIRMWARE = "ipc_echo_testb_mcu1_0_release_strip.xer5f"
./meta-ti/meta-ti-bsp/recipes-bsp/u-boot/u-boot-ti.inc:43:DM_FIRMWARE = "ipc_echo_testb_mcu1_0_release_strip.xer5f"

    Best,
    Jared