How do I start a timer after power-on, or when the input signal goes away?

Document created by BrettG on Sep 6, 2011
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How do I start a timer when the SigmaDSP powers on, and then output a GPIO flag when the timer is complete? This could be used, for example, in power sequencing for a system that requires staggered startup times between functional blocks.

 

Also, how would I start a timer when the audio input signal goes away, so that I could mute other parts of the system via GPIO after a set period of time?

 

Both of these functions can be implemented using the Timer With External Reset cell in SigmaStudio.

 

How do I start a timer when the SigmaDSP powers on, and then output a GPIO flag when the timer is complete? This could be used, for example, in power sequencing for a system that requires staggered startup times between functional blocks.

ScreenHunter_01 Sep. 06 14.41.jpg

Also, how would I start a timer when the audio input signal goes away, so that I could mute other parts of the system via GPIO after a set period of time?

ScreenHunter_03 Sep. 06 14.42.jpg

The project file is attached as a guide.

 

This FAQ was generated from the following discussion: How do I start a timer after power-on, or when the input signal goes away?

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