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TDA4VM-Q1: TDA4 boot fail issue

user5052034
Prodigy 180 points
Part Number: TDA4VM-Q1

Hi TI expert,

We are using TDA4VM-Q1 to develop a product.When we do some power on/off test, we found some issues.

We power on the board,all the power is well,the program will stop at very beginning.The program would stop at 0X0C which means trigged prefetch command unnormally.

Then compare the data in the DRAM between when it pass and fail. We found some of the DRAM data are wrong when it boot failed.

The data  read and write  of the NOR flash is normal. Only after these data transfered to DRAM, then we found some wrong data in the DRAM.

This phenomenon is easier to replicate at higher temperatures(85℃).

I attached the data in the DRAM of boot fail and pass

Have you ever encountered this issue before and maybe can give some help or hints of this issue?

Thanks

  • 0
    TI__Guru**** 449995 points

    Hi,

    Which SDK revision are you using? What is the boot flow? From the code it looks like you are using autosar on mcu1_0, please confirm. Also how do you know data read/write from the flash is ok ? 

    Regards,

    Brijesh

  • 0 in reply to Brijesh Jadav
    Prodigy 180 points

    Hi Brijesh,

    Please help check below information can answer your question:

    1. revision：pdk_jacinto_07_03_00_29
    2. Boot flow：We boot from Nor flash,OSPI mode, Norflash type is MT35XU512ABA1G12
    3. Yes, we are using autosar on mcu1_0
    4. Under normal and abnormal conditions, We compared Norflash data(address: 0x50100000) and the results are consistent, But the DDR values(0xA1000000) are not the same;

  • 0 in reply to user5052034
    TI__Guru**** 449995 points

    Hi,

    Any further update on this issue?

    Regards,

    Brijesh