Can I use eTPU to create square signal whose frequency increase linearly following the time?

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Can I use eTPU to create square signal whose frequency increase linearly following the time?

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n_
Contributor II
I need your help to create the square signal (PWM) that have frequency increases following the slope (please see the attached picture).
 
The PWM square signal has frequency increasing continuouly along time.
Can you give me the solution to do it using eTPU.
 
Thanks and regards,
Nguyen 
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UK_CF_FAE
NXP Employee
NXP Employee
Hello n,
 
The answer to your question is YES.
 
I expect your next question will be:
"How do I do this?"
 
The answer to this further question is explained in application note AN2854.
 
If there are any parts of the application note that you do not understand, please start a new post on this forum, including the Freescale part number in the Subject line. Since you have posted on the Coldfire forum, I guess that you are considering MCF5235.
 
If this is a Master's project, which college do you go to?
 
Mark
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