STM32 PWM mode phase and settings-EEWORLD

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For pwm, the phase and PWM mode are related to CCER->CCxP. The corresponding relationship is as follows:
CCER->CCxP = 0; In PWM mode 1, TIMx->CRRx= 0; is low level. TIMx->CRRx = TIMx->ARR; is high level, the larger TIMx->CRRx is, the larger the positive duty cycle is.

CCER->CCxP = 1; In PWM mode 1, TIMx->CRRx= 0; is high level. TIMx->CRRx >= TIMx->ARR; is low level, the larger TIMx->CRRx is, the smaller the positive duty cycle is.

CCER->CCxP = 0; In PWM mode 2, TIMx->CRRx= 0; is high level. TIMx->CRRx = TIMx->ARR; is low level, the larger TIMx->CRRx is, the smaller the positive duty cycle is.

CCER->CCxP = 1; In PWM mode 2, TIMx->CRRx = 0; is low level. TIMx->CRRx >= TIMx->ARR; is high level. The larger TIMx->CRRx is, the larger the positive duty cycle is.

Keywords：STM32 Reference address：STM32 PWM mode phase and settings

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