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[TDA4]:Failed to read OSPI flash through STIG

hang song
Prodigy 90 points


Hello,

I used STIG to read addr 0 of flash,length 4.

The result is always 0xFFFFFFFF.

Uboot is not  0xFFFFFFFF.

Could you please tell me what's the possible reasons?

Can I do this through STIG?

Thanks

Hang

  • 0
    TI__Expert 6065 points

    Hi,

    Which software library/example are you using to test?

    pdk package has a ospi test application which access the ospi flash on the evm.
    source code is at: <pdk_install_dir>/packages/ti/drv/spi/test/ospi_flash/
    Can you build this and check?

    Regards,
    Prasad

  • 0 in reply to Prasad Konnur
    Prodigy 90 points

    Hi, Prasad

    The DAC can be transmitted correctly.

    But if only use STIG, incorrect reading and writing flash will appear.

    Does STIG only support SIO mode transmission?   (SIO mode data is shifted to the device on DQ0 only and from the device on DQ1 only)

    When STIG is SIO mode, the transmission is normal.

    Another question is, can I disable WREN automatical send in direct mode by OSPI_DEV_INSTR_WR_CONFIG_REG[WEL_DIS_FLD]?

    Thanks,

    Hang

  • 0 in reply to hang song
    TI__Expert 6065 points

    Hi Hang,

    Can you post what is the sequence of register writes you are doing in case of STIG mode?

    Have you modified any example code and trying to execute?

    For last question regarding disable WREN automatic send, Yes you can disable.

    Regards,
    Prasad

  • 0 in reply to Prasad Konnur
    TI__Expert 6065 points

    Hi Hang,

    I haven't heard back from you, I'm assuming you were able to resolve your issue.

    If not, just post a reply below (or create a new thread if the thread has locked due to time-out).

    Regards,
    Prasad