From 0b430cba4eb873b15bf38fb78d331b31b98c3f84 Mon Sep 17 00:00:00 2001
From: YunHorn Technology <dp.s@yunhorn.com>
Date: Wed, 3 Apr 2024 19:07:30 +0800
Subject: [PATCH] try standby mode

---
 Core/Src/stm32_lpm_if.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/Core/Src/stm32_lpm_if.c b/Core/Src/stm32_lpm_if.c
index 66c1338..9d98b45 100644
--- a/Core/Src/stm32_lpm_if.c
+++ b/Core/Src/stm32_lpm_if.c
@@ -78,14 +78,30 @@ const struct UTIL_LPM_Driver_s UTIL_PowerDriver =
 void PWR_EnterOffMode(void)
 {
   /* USER CODE BEGIN EnterOffMode_1 */
+	  /* Enable Power Clock */
+		HAL_SuspendTick();
 
+	  /* Disable all used wakeup sources: Pin1(PA.0) */
+	  HAL_PWR_DisableWakeUpPin(PWR_WAKEUP_PIN1|PWR_WAKEUP_PIN2|PWR_WAKEUP_PIN3);
+
+	  /* Clear all related wakeup flags */
+	  __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
+
+	  /* Re-enable all used wakeup sources: Pin1(PA.0) */
+	  HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN1);
+
+	  /*## Enter Standby Mode ####################################################*/
+	  /* Request to enter STANDBY mode  */
+	  HAL_PWR_EnterSTANDBYMode();
   /* USER CODE END EnterOffMode_1 */
 }
 
 void PWR_ExitOffMode(void)
 {
   /* USER CODE BEGIN ExitOffMode_1 */
-
+	  //HAL_ResumeTick();
+	  __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
+	  __HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);
   /* USER CODE END ExitOffMode_1 */
 }