From a270cf280b22a969581a7f1ca1ad6ba071bad299 Mon Sep 17 00:00:00 2001
From: Dave Hylands <dhylands@gmail.com>
Date: Thu, 14 Feb 2019 12:38:48 -0800
Subject: [PATCH] stm32/stm32_it: Fix RTC IRQ handler to handle all EXTI IRQs
on F0 MCUs.
---
ports/stm32/stm32_it.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/ports/stm32/stm32_it.c b/ports/stm32/stm32_it.c
index 88e7f5bfe..0f2be4c68 100644
--- a/ports/stm32/stm32_it.c
+++ b/ports/stm32/stm32_it.c
@@ -509,8 +509,18 @@ void RTC_WKUP_IRQHandler(void) {
void RTC_IRQHandler(void) {
IRQ_ENTER(RTC_IRQn);
- RTC->ISR &= ~RTC_ISR_WUTF; // clear wakeup interrupt flag
- Handle_EXTI_Irq(EXTI_RTC_WAKEUP); // clear EXTI flag and execute optional callback
+ if (RTC->ISR & RTC_ISR_WUTF) {
+ RTC->ISR &= ~RTC_ISR_WUTF; // clear wakeup interrupt flag
+ Handle_EXTI_Irq(EXTI_RTC_WAKEUP); // clear EXTI flag and execute optional callback
+ }
+ if (RTC->ISR & RTC_ISR_ALRAF) {
+ RTC->ISR &= ~RTC_ISR_ALRAF; // clear Alarm A flag
+ Handle_EXTI_Irq(EXTI_RTC_ALARM); // clear EXTI flag and execute optional callback
+ }
+ if (RTC->ISR & RTC_ISR_TSF) {
+ RTC->ISR &= ~RTC_ISR_TSF; // clear timestamp flag
+ Handle_EXTI_Irq(EXTI_RTC_TIMESTAMP); // clear EXTI flag and execute optional callback
+ }
IRQ_EXIT(RTC_IRQn);
}
--
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