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Original question:

DP83869HM: BSDL file and JTAG behaviour when reset is asserted

DP83869HM: BSDL file

Martin Bishop
Prodigy 125 points

Part Number: DP83869HM
Other Parts Discussed in Thread: DP83869

Two weeks have gone by - no sign of a BSDL file on the product pages

Would you please provide it as a matter of urgency, our testing can't move on until we have a copy

Martin

  • 0
    TI__Genius 9920 points

    Hello Martin,

    Thanks for the patience. We have been experiencing a lot of bottlenecking on documentation upload during this time. 

    While it may take time to release to the web, attached are the files that we will be releasing to expedite the matter. 

    Thanks,

    Cecilia

    dp83869_BSDL.zip

  • 0 in reply to Cecilia Reyes
    Prodigy 125 points

    Cecilia

    Thank you for attaching the DP83869's BSDL file.  Let us see if it yeilds much insight.

    I can see two issues affecting its utility:

    1) JTAG can only be entered by straping, can we then segue into an operational mode ?  We can investigate using SMI to have both JTAG and operation.  Its often useful to observe pins, using Sample, while the system is running.

    2) Only a subset of pins has BSDL support, no support for the AC pins - SGMII or TP IO.

    Best Regards

    Martin

  • 0 in reply to Martin Bishop
    Prodigy 125 points

    Cecilia

    Are you certain this is the correct BSDL file ?

    The DP83869 is a 48 pin device, the BSDL file dp8356x_bsr_final_48.bsdl you provided has pin numbers tup to 63 ...

    Additionally, if one goes along with the pin numbers and attempts an ExTest on the Led pins their inputs are SA0 they don't track the output, and the LEDs don't lite.

    More fundamentally, the response to the Sample Instruction code (DD) is 00 which is indicative of something very wrong, however as the BSDL file is hardly production grade investigating the hardware is unlikely to provide good value (we use the JTAG tools extensively, and in other circumstances would scope the JTAG signals, but is TDO SA0 due to a configuration issue ?)

    My sense of humour is becoming strained

    Best Regards

    Martin

  • 0 in reply to Martin Bishop
    TI__Genius 9920 points

    Hi Martin,

    Apologies on the inconvenience. I will discuss with our design team internally to investigate this issue.

    Thanks,

    Cecilia