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AM6442: OSPI_sbl boot failed in some boards

Ted Huh
Expert 3065 points
Part Number: AM6442


Tool/software:

Hi Team,

My customer is experiencing the OSPI_sbl fail with the console message "some test have failed"

when they take a look into the code, 

status = Bootloader_parseMultiCoreAppImage(bootHandle, &bootImageInfo);

does not get SUCCESS.

by unchecking "Disable Auth For Application Image" application was working well.

The problem is, when the "Disable Auth For Application Image" is checked, on some boards working OK, but some boards are not starting.

So they are trying to figure out what makes this problem.

on e2e, by reading this post,

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1214401/am6442-sbl_ospi---------bootloader_parsemulticoreappimage-returns--1

they tried to add the reset delay from 14ms to 40ms, but there was no change.

and if they press the mechanical reset switch, it still shows "some test have failed".

if they run the same reset key press test with normal board, it does not make any error.

again, what can make this difference?

Regards,

Ted