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Can't read F28069 PARTID register

Josep Novell
Prodigy 140 points

Hi all,

I can't read TMX320F28069PZA PARTID register, allways got 0xffff

I'm trying to read by software and also directly form the debuger, reading registers or reading memory directly, allways with the sasme result of 0xffff.

I'm using CCS V6.1.0.00104.

The rest of my application is working fine.

Any suggestion?

Thanks a lot,

Josep

 

  • 0
    TI__Guru 61235 points
    Josep,

    I suspect the problem is the TMX silicon. This is not production silicon, but rather an early sample. The PARTID value is populated by TI at production time, and in early silicon this was not done. So, you read all 0xFFFF.

    Get silicon that is TMS (not TMX) and the PARTID will be populated.

    Regards,
    David
  • 0 in reply to David M. Alter
    Prodigy 140 points

    David,

    Thank you for your help.

    Reviewing other boards/firmwares we have made with similar CPU's, probably this is the problem. By now this is a proto board.

    Before production I'll check this with a TMS silicon.

    Thanks again.

    Regards,

    Josep