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authorericQiang <[email protected]>2019-09-09 22:22:29 +0800
committerericQiang <[email protected]>2019-09-09 22:22:29 +0800
commitee668cce81f97645ba84d93efe565e81cd8a80b4 (patch)
tree743969f326c1feb0dd401c3a35e95525177b0e10
parent4ba5fe5ab5e7f38ff36c579fa5406d9c113a9e8d (diff)
bug fix: the value of timer auto reload should be (val-1)
-rw-r--r--bsp/stm32/libraries/HAL_Drivers/drv_hwtimer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_hwtimer.c b/bsp/stm32/libraries/HAL_Drivers/drv_hwtimer.c
index 24e91cd690..52fa5c84fa 100644
--- 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)
{