bug fix: the value of timer auto reload should be (val-1)
@@ -228,7 +228,7 @@ static rt_err_t timer_start(rt_hwtimer_t *timer, rt_uint32_t t, rt_hwtimer_mode_
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
/* set tim cnt */
- __HAL_TIM_SET_AUTORELOAD(tim, t);
+ __HAL_TIM_SET_AUTORELOAD(tim, t - 1);
if (opmode == HWTIMER_MODE_ONESHOT)
{
