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PSoC 5, 3 & 1 MCU

Anonymous
Not applicable
‎Aug 23, 2012 04:14 AM

Frequency measurement using PSoC

Frequency measurement can be done in PSoC in 2 ways:

   

1. Capture method for measuring the frequency works only for lower frequencies (< 50 KHz (depends on CPU clock)) because as the time-period of the signal becomes comparable to that of CPU clock , the program flow gets stuck in ISR routine due interrupt within an interrupt.

   


2. So, for measuring high frequencies use a timer of tick 1 sec and count the pulses using a counter.

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ETRO_SSN583
Esteemed Contributor
‎Aug 24, 2012 06:50 AM

Re: Frequency measurement using PSoC

This is a good ap note on the subject -

   

 

   

http://www.cypress.com/?rID=2671

   

 

   

And attached.

   

 

   

Regards, Dana.

Counters1.zip
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ETRO_SSN583
Esteemed Contributor
‎Aug 24, 2012 06:55 AM

Re: Frequency measurement using PSoC

This is a good ap note on the subject -

   

 

   

http://www.cypress.com/?rID=2671

   

 

   

And attached.

   

 

   

Regards, Dana.

Counters2.zip
0 Likes
Reply