When PWM duty changes?

Hello,

I control BLDC motor.

Control the speed of the motor by changing the TIM->CCR.

I have a question while setting the time to change the value of CCR.

If I change the value of CCR while I'm sending out PWM, will the Duty ratio change in the next cycle?

Thanks.

This topic has been closed for replies.

Super User

That depends on whether you have CCRx preload set or not. Read the TIM chapter in RM.

JW

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