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TMDS64EVM: Resource Explorer on AM64X EVM Quick Start - missing link to get the Python writes to SD after Balena Etcher step

Jim Mrowca
Genius 4132 points
Part Number: TMDS64EVM
Other Parts Discussed in Thread: UNIFLASH

TIREX AM64x EVM  quick start Link: Quick Start Guide (ti.com)

Just after completion of "Writing the WIC Image to an SD Card",

there are some necessary steps (found in   AM64x MCU+ SDK: EVM Setup (ti.com)     ) to

  • confirm the Balena Etcher data on the SD card in EVM UART boot mode
  • write additional files into the SD card installed on the EVM via Python uart_uniflash.py
  • power down & EVM reconfig to OSPI boot  mode
  • powerup EVM and confirm null bootloader

After that completes, one should power down the EVM & switch the EVM to SD boot mode for Linux boot from the SD

The quickstart guide should have linkages into the AM64x SDK v9.2 EVM Setup steps after the Balena Etcher step

  • 0
    TI__Mastermind 30265 points

    Hi Jim,

    You can boot the AM64x board with SD card as the boot media. In that case you don't have to follow the instructions provided in MCU+SDK documentation. 

    Just flash the SD card image using Balena Etcher and set the boot switch settings for SD card boot and you should be able to boot Linux.

    If you want to boot  Linux using SBL (Secondary Boot loader) using MCU+SDK then you need to build the MCU+SDK as mentioned in the EVM Setup section and use uart_uniflash.py to flash the images built using MCU+SDK.

    Let me know if things are not clear.

    Best Regards,

    Suren

  • 0 in reply to Suren Porwar
    Genius 4132 points

    Suren:

     Ok, it was not clear to me as to why the python path would be necessary for a SD boot mode into embedded Linux on the EVM. 

    I believe that any path into getting to run CCS on an MCU+ SDK example would require one to run the python path to further prep the SD card in order to get to the OSPI boot mode - true?

    thanks Jim

  • +1 in reply to Jim Mrowca
    TI__Mastermind 30265 points

    Yes Jim, your understanding is correct. 

    I am glad to help. Closing this thread, feel free to reach out for any further assistance.

    Best Regards,

    Suren