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j5 PG version identify

xiongwei huang
Prodigy 100 points


Hello all 

how can I identify the version of j5 ? I saw some board version of PG2.0 , and some others is PG2.1 , which register can I know of this chip version ?

Another question , Does the PG2.1 have the same SGX die version with PG2.0 of Rev 125 ? I Got a poor opengl  performance on our board ,while the much better in j5 evm , with same code in QNX enviroment .

 

Thanks and regards 

  • 0
    TI__Mastermind 25055 points

    Hello,

     The JTAG ID Register provides the device version.  Please refer to the device datasheet and TRM for more information.

    Regards,
    Marc

  • 0 in reply to MarcPyne
    TI__Genius 15310 points

    It’s the same SGX version is used between PG2.0 and PG2.1 boards.

    If you see the symbol: XDRA6XXBCYE or XDRA6XXBCYEF: They are PG2.1 devices.

    The device ID register for J5 is at address 0x48140600. The bits [31:28] with the value 0x3 or 0xC indicate PG2.1 revision silicon. Earlier revisions of silicon has 0x0 for these bits.

    Regards,

    Viet