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Reading Duty Cycle from ADAU1466 MP pin

Question asked by evan.cornell@savant.com on Apr 13, 2018
Latest reply on Apr 16, 2018 by evan.cornell@savant.com

I want to read in a signal to ADAU1466. I have this signal connected to either MP or AUXADC pin through resistor stuff options.

 

The signal has the following four possible options: 

  1. high
  2. low
  3. 1kHz square wave (50% duty cycle)
  4. 1kHz square wave (25% duty cycle)

 

What is the most computationally efficient way to read in this signal to ADAU1466 and give a 2 bit response of which signal option is present? A SigmaStudio example would be helpful, if possible.


Thanks!

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