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Unique serial number or ID

Former Member

Is there any way to read in software a unique serial number that only that physical board will have?  I've seen there appears to be a serial number sticker on the board.  Is that accessible in software anywhere?

Perhaps something in the /sys/devices/amba.0/ directory has an entry that indicates a unique number?  QSPI memory, SD disk, or Zynq itself?

Thanks,

Chris

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  • 0

    Ahh, should have mentioned that I'm using the MicroZed.  The serial EEPROM sounds like a good approach.  Is there any easy way to access that ID from within the OS?

  • 0 in reply to Former Member

    Hello Chris,

     

    I ran this by one of my co-workers and got this reply:

     

     

    The way the single wire UNI/O interface works is that it depends upon a rather precise timing protocol to maintain clock synchronization with the host processor.  We have a standalone application which can do this on bare metal but once you get the OS involved, the timing would go out the window.  Theoretically, a hardware controller could be implemented in the PL to control the timing and retrieval of the MAC ID from the EEPROM and then the PS read that data from a set of AXI registers but we have not gotten that far yet.

     

    Another alternative would be to run the standalone application and copy the MAC ID to QSPI flash and then have the OS read the data from QSPI flash.

     

    Hope that helps,

     

    -Gary

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  • 0 in reply to Former Member

    Hello Chris,

     

    I ran this by one of my co-workers and got this reply:

     

     

    The way the single wire UNI/O interface works is that it depends upon a rather precise timing protocol to maintain clock synchronization with the host processor.  We have a standalone application which can do this on bare metal but once you get the OS involved, the timing would go out the window.  Theoretically, a hardware controller could be implemented in the PL to control the timing and retrieval of the MAC ID from the EEPROM and then the PS read that data from a set of AXI registers but we have not gotten that far yet.

     

    Another alternative would be to run the standalone application and copy the MAC ID to QSPI flash and then have the OS read the data from QSPI flash.

     

    Hope that helps,

     

    -Gary

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