bug fix: the value of timer auto reload should be (val-1)

2019-09-09 22:22:29 +08:00 · 2019-09-09 22:22:29 +08:00 · ee668cce81
parent 4ba5fe5ab5
commit ee668cce81
1 changed files with 1 additions and 1 deletions
--- a/bsp/stm32/libraries/HAL_Drivers/drv_hwtimer.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_hwtimer.c
@ -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)
    {