DDR Bus Test Error in STM32MP157AAD3 before FSBL, How to resolve this?

BG.3 · ‎2022-04-09

Our board is similar to STM32MP157C-DK2 Disco board - All the Developer packages have been installed, When the power supply is given, all the test point voltages are in desired level. But the MPU not even clearing FSBL and exit with

ERROR: DDR addr bus test: can't access memory @ 0xc0000004

PANIC at PC : 0x2ffdf9d9

Exception mode=0x00000016 at: 0x2ffda000

What is the issue and how we can address?

PatrickF · ‎2022-04-11

Hi,

There is many FAQ which could help:

from this page : https://community.st.com/s/article/FAQ-STM32MP1-Bring-up-procedure you could find many links/information.

Regards.

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BG.3 · ‎2022-04-11

Thank you so much for responding. I'll look into it.

DG · ‎2023-03-19

Hello, have you solved the problem? I have encountered a similar problem.

BG.3 · ‎2023-03-22

No, Still the issue remains.

Eloi · ‎2024-01-22

Hello, Nothing new, I have the same problem too