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can invert the PWM signal?

 
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ortegahernandes



Joined: 14 Feb 2020
Posts: 23

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can invert the PWM signal?
PostPosted: Thu Jul 02, 2020 5:45 pm     Reply with quote
Can invert the PWM signal?
Instead of starting positive, start negative for one of the PWM
Code:

setup_compare (1, COMPARE_PWM | COMPARE_TIMER2);

setup_compare (2, COMPARE_PWM | COMPARE_TIMER3);

to generate the PWM.

PIC: dsPIC33FJ16GS504
temtronic



Joined: 01 Jul 2010
Posts: 9241
Location: Greensville,Ontario

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PostPosted: Thu Jul 02, 2020 7:01 pm     Reply with quote
Depends on the PIC and the PWM peripheral but of course the easy 'cheat', that any PIC can use ... is to just swap the 'off' and 'on' values....
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