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AM68A: AM68A Board Not Booting from SD Card

Part Number: AM68A

Tool/software:

Here's a complete, clearly documented technical support note that you can share with TI Customer Support. This will help them understand your exact process, image, and problem so they can guide you properly.


 Board:

  • TI SoC: AM68A

  • Board Platform: j721s2-evm (AM68A is based on this SoC)


 Steps I Followed

1. SDK Configuration Used

I used the following SDK configuration:

  • SDK: processor-sdk-analytics-10.01.00

  • Config file:
    processor-sdk-analytics-10.01.00-config.txt
    Targeted for AM68A (j721s2-evm)


2. Tools️ Yocto Build

I built the full image using Yocto:

MACHINE="j721s2-evm" bitbake -k tisdk-edgeai-image
The build completed successfully.

3.  Image Obtained

After build, I got the following image:

  • Image: tisdk-edgeai-image-j721s2-evm.rootfs-20250503120633.wic.xz

  • Location: yocto-build/build/deploy-ti/images/j721s2-evm/


4. Inbox tray Decompression

I decompressed the image using:

xz -d tisdk-edgeai-image-j721s2-evm.rootfs-20250503120633.wic.xz

Resulting in:

  • tisdk-edgeai-image-j721s2-evm.rootfs-20250503120633.wic


5. Fire Flashing to SD Card

I flashed the image to SD card:

Used Balena Etcher to flash the .wic file


6. File folder Boot Partition Files After Flash

After flashing, the SD card contains:

  • tiboot3.bin

  • tiboot3-j721s2-gp-evm.bin

  • tiboot3-j721s2-hs-evm.bin

  • tiboot3-j721s2-hs-fs-evm.bin

  • tispl.bin

  • u-boot.img

  • uEnv.txt

These files were present in the boot partition.


X Problem

After inserting the SD card into the AM68A board, the board does not boot.

what is the issue ?