diff options
| -rw-r--r-- | bsp/stm32/libraries/HAL_Drivers/drv_pwm.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c b/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c index 81af346b1e..b655b7c442 100644 --- a/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c +++ b/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c @@ -330,10 +330,12 @@ static rt_err_t drv_pwm_set(TIM_HandleTypeDef *htim, struct rt_pwm_configuration pulse = period; } __HAL_TIM_SET_COMPARE(htim, channel, pulse - 1); - __HAL_TIM_SET_COUNTER(htim, 0); - /* Update frequency value */ - HAL_TIM_GenerateEvent(htim, TIM_EVENTSOURCE_UPDATE); + /* If you want the PWM setting to take effect immediately, + please uncommon the following code, but it will cause the last PWM cycle not complete. */ + //__HAL_TIM_SET_COUNTER(htim, 0); + + //HAL_TIM_GenerateEvent(htim, TIM_EVENTSOURCE_UPDATE); /* Update frequency value */ return RT_EOK; } |