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niraami/setDutyCycle.cpp

Last active March 31, 2026 12:43
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Simple method for setting PWM duty cycle on the STM32 (HAL)
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setDutyCycle.cpp
static void setDutyCycle(TIM_HandleTypeDef* const htim, uint32_t channel, float duty_cycle) {
if (duty_cycle > 100) duty_cycle = 100;
if (duty_cycle < 0) duty_cycle = 0;
float pw_resolution = (((float)(*htim).Init.Period + 1.0f) / 100.0f);
uint16_t pw_desired = pw_resolution * duty_cycle;
__HAL_TIM_SET_COMPARE(htim, channel, pw_desired);
}
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