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Peter Mather
Peter Mather
Associate III
December 6, 2017
Question

How do I distinguish between 405 and 407 processor in software? The signature is the same.

  • December 6, 2017
  • 2 replies
  • 631 views
Posted on December 06, 2017 at 18:29

I'm writing code that can run on both 405 and 407 processors but the device signature is the same for both. How can my code tell which it is running on?

Thanks

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    2 replies

    waclawek.jan
    waclawek.jan
    Super User
    December 6, 2017
    Posted on December 06, 2017 at 22:41

    You can't.

    Use some different way - differences in externally connected hardware, your own 'signature' programmed during initial tests...

    JW

    Tesla DeLorean
    Tesla DeLorean
    Guru
    December 6, 2017
    Posted on December 06, 2017 at 22:49

    What features are you using on one and not the other? How is the circuit they are used in different? Ethernet? check presence of PHY? Put a serial# in OTP.

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