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SK-AM62A-LP: SK-AM62A-LP: Flashing SBL, DM and MCU binaries via DFU to eMMC

Varun Nuvvula
Intellectual 985 points
Part Number: SK-AM62A-LP

Hi There 

I want to know whether we can flash the MCU+SDK binaries like ipc_rpmsg_echo_linux.release.appimage, linux.appimage, sbl_emmc_linux_stage2.release.appimage, sbl_emmc_linux_stage1.release.tiimage to eMMC via DFU. If possible can i know steps how to flash it.


  • 0
    Intellectual 985 points

    Hi There

    i tried like this but results with some error.

    these steps i tried 

    1. firstly changed  the dfu ENV variables to

              setenv dfu_alt_info_emmc 'rootfs part 0 1 mmcpart 0;stage1 raw 0x0 0x80000 mmcpart 1;stage2 raw 0x80000 0x80000 mmcpart 1;mcu raw 0x100000 0x700000 mmcpart 1;hsm raw 0x800000 0x200000 mmcpart 1;dm raw 0xA00000 0x200000 mmcpart 1;linux_app raw 0xC00000 0x200000 mmcpart 1'

    2. Next   

          setenv dfu_alt_info ${dfu_alt_info_emmc}
          dfu 0 mmc 0

    3. then it is waiting for the binaries. after transferring some binaries via dfu-util resulting this error.

           dfu-util.exe -R -a 1 -D stage1.release.tiimage

           dfu-util.exe -R -a 2 -D stage2.release.appimage

           dfu-util.exe -R -a 3 -D mcu.release.appimage

           dfu-util.exe -R -a 4 -D hsm.appimage

    ERROR

  • +1 in reply to Varun Nuvvula
    TI__Guru 69061 points

    Hi Varun,

    Please note you must use eMMC block offsets instead of the raw address offsets. Considering the eMMC block size is 512B, the command for stage2 would be:

    stage2 raw 0x400 0x400 mmcpart 1

    Likewise you would have to calculate the block offsets for other images and form the final command. Afterwards, the DFU flashing should be successful.

    Regards,

    Prashant

  • 0 in reply to Prashant Shivhare
    Intellectual 985 points

    Thanks Prashant for the reply.


    Regards
    Varun Nuvvula.