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-rw-r--r--os/hal/ports/STM32/LLD/TIMv1/hal_gpt_lld.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/os/hal/ports/STM32/LLD/TIMv1/hal_gpt_lld.c b/os/hal/ports/STM32/LLD/TIMv1/hal_gpt_lld.c
index e34535b99..3e917e27a 100644
--- a/os/hal/ports/STM32/LLD/TIMv1/hal_gpt_lld.c
+++ b/os/hal/ports/STM32/LLD/TIMv1/hal_gpt_lld.c
@@ -863,6 +863,7 @@ void gpt_lld_polled_delay(GPTDriver *gptp, gptcnt_t interval) {
gptp->tim->ARR = (uint32_t)(interval - 1); /* Time constant. */
gptp->tim->EGR = STM32_TIM_EGR_UG; /* Update event. */
+ gptp->tim->SR = 0; /* Clear pending IRQs. */
gptp->tim->CR1 = STM32_TIM_CR1_OPM | STM32_TIM_CR1_URS | STM32_TIM_CR1_CEN;
while (!(gptp->tim->SR & STM32_TIM_SR_UIF))
;