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PWM shift phase on teensy 4.1
- Thread starter SaeedB
- Start date
joepasquariello
Well-known member
Is there any code that shows how to shift the phase of a pwm on teensy 4.1? analogWrite has no shift phase attribute.
Do you mean you want to generate multiple PWM that are phase-shifted relative to each other?
Do you mean you want to generate multiple PWM that are phase-shifted relative to each other?
Yes, I want to generate 2 pwms that have shift phases relative to each other.
joepasquariello
Well-known member
Yes, I want to generate 2 pwms that have shift phases relative to each other.
To do this, you have to get into the low-level details of the FlexPWM module (chapter 55 of the iMXRT1062 reference manual). Take a look at this thread for an example (https://forum.pjrc.com/threads/68600-Teensy-4-1?p=292562&viewfull=1#post292562)
Maybe that example is enough, but if you have specific requirements, let us know a little more. For example, if you only need to generate square waves that are phase-shifted relative to each other, the example above may be sufficient. If you need multiple PWM that are phase-shifted and also have independent duty cycle, that will require a deeper dive into FlexPWM.