From e0025df7d1a24fc7e7ae8cb13421a1eb7621691f Mon Sep 17 00:00:00 2001
From: Frederic Pillon <frederic.pillon@st.com>
Date: Mon, 7 Jul 2025 16:55:48 +0200
Subject: [PATCH] fix: enable missing RTC wakeup

Fixes https://github.com/stm32duino/STM32LowPower/issues/126.

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>
---
 src/STM32RTC.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/STM32RTC.cpp b/src/STM32RTC.cpp
index 32e24ba..1aa3a56 100644
--- a/src/STM32RTC.cpp
+++ b/src/STM32RTC.cpp
@@ -1294,7 +1294,12 @@ void STM32RTC::configForLowPower(Source_Clock source)
 #ifdef __HAL_RCC_RTCAPB_CLKAM_ENABLE
   __HAL_RCC_RTCAPB_CLKAM_ENABLE();
 #endif
-
+#if defined(PWR_WAKEUP_LINE7)
+  HAL_PWR_EnableWakeUpLine(PWR_WAKEUP_LINE7, PWR_WAKEUP_SELECT_3, PWR_WAKEUP_POLARITY_HIGH);
+#endif
+#if defined(PWR_WAKEUP_PIN7_HIGH_3)
+  HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN7_HIGH_3);
+#endif
   setClockSource(source);
   begin();