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AM2432: AM2432_ALV LPDDR4 Initialization

Dhruvil Patel
Prodigy 85 points
Part Number: AM2432
Other Parts Discussed in Thread: AM2434

Hi Team,

I have custom AM2432_ALV processor connected with 2Gb LPDDR4.

I have following question regarding LPDDR4

  1. Currently the LPDDR4 initialization is stuck the Polling PI bit. The processor that we are using is a HS-FS version of the processor.
  2. I have tried with the default AM2434_EVM DDR script and its stuck in the attached image.

Please guide me.

Thanks & Regards,

Dhruvil Patel

  • 0
    TI__Guru 54745 points

    Hi Dhruvil,

    For the HS-FS device, you will need to install the MCU+ SDK 08.06.00.45 for AM243x and use the C:\ti\mcu_plus_sdk_am243x_08_06_00_45\tools\ccs_load\am243x\load_dmsc_hsfs.js for connecting to the R5F_0_0, then apply the GEL command for DDR settings.

    Best regards,

    Ming

  • 0 in reply to Ming Wei
    Prodigy 85 points

    Hi Ming,

    Already tried that, still the issue persists. It is stuck at the same location: Polling PI DONE bit.

    Can you help?

  • +1 in reply to Dhruvil Patel
    TI__Guru 54745 points

    Hi Dhruvil,

    Have you tried to use the SBL_NULL for DDR initialization?

    Please import and build the sbl_null_am243x-evm_r5fss0-0_nortos_ti-arm-clang, then flash the sbl_null.Debug.hs_fs.tiimage into OSPI flash.

    Set boot mode to "Boot from OSPI flash". The SBL_NULL will initialize the DDR for you.

    Best regards,

    Ming

  • 0 in reply to Ming Wei
    Prodigy 85 points

    Hi Ming,

    Thank you, the new SDK, and the SBL Null bootloader suggestion. It is working as expected and it has initialized the DDR and working as expected. What did not work was the GEL files setup and needs to be looked into for the future projects that comes across.

    Thanks,

    Dhruvil

  • 0 in reply to Ming Wei
    Prodigy 85 points

    Hi Ming,

    Thank you, the new SDK, and the SBL Null bootloader suggestion. It is working as expected and it has initialized the DDR and working as expected. What did not work was the GEL files setup and needs to be looked into for the future projects that comes across.

    Thanks,

    Dhruvil