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TMS320F280037C: The SDFM data and clock signals captured by GPIO module

Luke Chen
Expert 5090 points

Part Number: TMS320F280037C

Tool/software:

Hi champs,

When my customer uses SDFM, he can check the data and clock signals and determine the setup and hold time. However, he doesn't know real setup and hold time the GPIO module capture before transmitting to SDFM module.

I check the CLB module, looks like it is possible use CLB to route the SDFM data and clock pins output to other GPIO pins, then check the real data and clock signals captured into GPIO module, is it correct?

Please advise your comments, thank you.

Regards,

Luke

  • 0
    TI__Mastermind 28580 points

    Hi Luke,

    The CLB XBAR module can route some SDFM signals to the CLB. Refer to the XBAR chapter in the TRM to confirm whether these are the correct signals you want to capture.

    You can also route any GPIO module to the CLB using the CLB Input XBAR module.

    Let me know if you have additional questions.

    Thank you,

    Luke

  • 0 in reply to Luke Jones
    TI__Expert 5090 points

    Hi Luke,

    I think the SDFM clock and data signals captured by GPIO module connect to SDFM, we can do below designs

    1. These clock and data can also connect to CLB Tile at the same time via CLB input XBAR.
    2. In CLB Tile, we can connect CLB output to CLB input to bypass the signals directly.
    3. Use CLB output XBAR and connect CLB output to specific GPIO pins.

    Then we can monitor the internal captured SDFM clock and data signals, right?

    Regards,

    Luke

  • +1 in reply to Luke Chen
    TI__Mastermind 28580 points

    Yes this is correct.

    Thank you,

    Luke