J721EXSOMXEVM: Boot process not working in J721E

Nirmal M

Part Number: J721EXSOMXEVM

Hello Team,

I am using J721EXSOMEVM board, i followed the user_guide. After connect SD card in EVM board, boot is not working.

I am not seeing any data printing in terminal, but config all according to user guide only.

Same SD card working with another J721EXSOMEVM board. Please help me in finding the root cause.

Thank you!

0 Gokul S 5 months ago

Hi Nirmal,

Can you check if these led's are on.

Regards,
Gokul

0 Nirmal M 4 months ago in reply to Gokul S

Thank you for your reply.

My issue resolved, on top SOM board was not properly connected, after connecting and screwing the board properly, boot working properly.

I am trying to understand the boot process of TDA4 Board, which core boot first, which one load OS like that. Can you please guide me here?

0 Gokul S 4 months ago in reply to Nirmal M

Hi Nirmal,

You can refer to this document for the boot flow,

Boot Flow Options on TDA4 Devices

Regards,
Gokul

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