STM32MP267FAK3 Custom Board – eMMC Flashing Timeout via STM32CubeProgrammer (No SD Card)

[_Vanshika]

I am working on a custom board based on STM32MP267FAK3 and facing issues while flashing eMMC directly using STM32CubeProgrammer.

Hardware Details

• SoC: STM32MP267FAK3

• DDR: DDR3L (part no: MT41K512M16VRP-107 )

• eMMC: Custom eMMC MX52LM08A11XVW

• SD Card: Not populated / no SD card provision on board

Software Changes Done

I have already made board-specific changes in:

• TF-A (DDR + PMIC configuration generated using CubeMX tool)

• OP-TEE

• U-Boot

• Linux kernel

  Flashing Method

  • Flashing eMMC directly using STM32CubeProgrammer

  • Interface: USB (DFU)

  • Using a TSV file generated from the build system (same method as reference BSP)
    TSV File

    

    Problem Description

    When flashing the eMMC, I consistently get a timeout error in STM32CubeProgrammer.

    My questions are:
    1. What might be the reason for this error?
    2. What are the possible solutions I can adopt to resolve this issue?
    3. Is there any other way to directly flash eMMC without SD card and without using STM32CubeProgrammer?

[PatrickF]

Hi, there might be two main root causes to look first:

- USB re-connection if you are using a Virtual machine. Check your VM settings or try using CubeProg under W11

- TF-A or uBoot (partition 0x1 or 0x2) is crashing (e.g. DDR init or else), please check board UART console log for error messages.

Regards.