STM32 timer timing calculation formula-EEWORLD

Collect

Tout = ((arr+1)*(psc+1))/Tclk;

in:

Tclk: Timer input clock frequency (unit: MHZ)

Tout: Timer overflow time (unit: us)

.TIM_Period = arr; eg; 4999

.TIM_Prescaler = psc; eg: 7199

Tout = ((4999+1) × (7199+1))/72 = 500000us = 500ms.

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