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Compiler/TM4C1294NCPDT: How do I know which silicon revision I am using? (RA0 / RA1 / RA2 etc.)

Russ Coxon
Prodigy 210 points
Part Number: TM4C1294NCPDT

Tool/software: TI C/C++ Compiler

Hi,

I am setting up ROM function calls in my application and currently have TARGET_IS_TM4C129_RA0 set as a predefined symbol. I have read that most LaunchPads use silicon revision RA1 and production devices are now RA2. How can I tell which silicon revision my LaunchPads are using?

Thanks,

Russ

  • 0
    TI__Mastermind 22580 points
    Hello Russ,

    Please refer register DID0 (Device Identification 0) in the chapter "System Control" of the datasheet for the relevant part.

    Thanks,
    Sai
  • 0
    TI__Guru**** 244380 points
    Hello Russ

    Check the device marking on the LaunchPad. If it shows something like XM4C then it is RA1. If it is TM4C then it is RA2. Also at the end of the device marking if it shows XM4C1294NCPDTI2 then it is RA1 and if it is TM4C1294NCPDTI3 then it is RA2.