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TMS320F28377D: SDFM used with the AMC33336-Q1

Louis crz
Prodigy 65 points
Part Number: TMS320F28377D
Other Parts Discussed in Thread: AMC3336-Q1

Tool/software:

Hi everyone,

I'm using the SDFM module with the AMC3336-Q1 to measure voltage from a motor (controlled with EPWM) for a control application. The one-bit data stream is connected to my TMS320, but I'm unsure how to handle the "Diag" signal, which is connected to a GPIO.

Would you recommend using a system interrupt to manage this signal, or is there a better approach?

Thank you for your help!

Have a nice day.

  • 0
    TI__Mastermind 45606 points

    Hi,

    Louis crz said:
    Would you recommend using a system interrupt to manage this signal, or is there a better approach?

    It depends what action you want to take while the diag signal is low. Maybe you want to discard or ignore voltage readings while the signal is low? Could use an external interrupt to know immediately if readings will be bad or you could just check the state in your background loop if you don't need to react that quickly.

    Best,

    Kevin