2021-07-05 10:59 PM
I need to generate two phase shifted asymmetric clock signals.
This should probably be done using Combined PWM mode.
What I need
Basic clock in TIMx_ARR for simplicity 4MHz , pin 1 with PWM1 , pin 2 with PWM2
Clock 1 2 3 4 1 2
PWM1 1 0 0 0 1 0
PWM2 0 0 1 0 0 0
PWM 1 has a duty cycle of 1 to 3 first clock tick is 1 and next three 0
PWM 2 is the same but phase shifted by 180 degrees i.e 2 clock period
Can this be achieved using Combined PWM mode?
Exactly how do I have to set the counter, I admit that I don't do very well.
Thansk all
P-S. A key feature is the precise 180-degree phase shift between the rising ramps of PWM1 and PWM2,