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Core/Src/stm32_lpm_if.c

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+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    stm32_lpm_if.c
+  * @author  MCD Application Team
+  * @brief   Low layer function to enter/exit low power modes (stop, sleep)
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2022 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "platform.h"
+#include "stm32_lpm.h"
+#include "stm32_lpm_if.h"
+#include "usart_if.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* External variables ---------------------------------------------------------*/
+/* USER CODE BEGIN EV */
+
+/* USER CODE END EV */
+
+/* Private typedef -----------------------------------------------------------*/
+/**
+  * @brief Power driver callbacks handler
+  */
+const struct UTIL_LPM_Driver_s UTIL_PowerDriver =
+{
+  PWR_EnterSleepMode,
+  PWR_ExitSleepMode,
+
+  PWR_EnterStopMode,
+  PWR_ExitStopMode,
+
+  PWR_EnterOffMode,
+  PWR_ExitOffMode,
+};
+
+/* USER CODE BEGIN PTD */
+
+/* USER CODE END PTD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN PD */
+
+/* USER CODE END PD */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN PM */
+
+/* USER CODE END PM */
+
+/* Private variables ---------------------------------------------------------*/
+/* USER CODE BEGIN PV */
+
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+/* USER CODE BEGIN PFP */
+
+/* USER CODE END PFP */
+
+/* Exported functions --------------------------------------------------------*/
+
+void PWR_EnterOffMode(void)
+{
+  /* USER CODE BEGIN EnterOffMode_1 */
+
+  /* USER CODE END EnterOffMode_1 */
+}
+
+void PWR_ExitOffMode(void)
+{
+  /* USER CODE BEGIN ExitOffMode_1 */
+
+  /* USER CODE END ExitOffMode_1 */
+}
+
+void PWR_EnterStopMode(void)
+{
+  /* USER CODE BEGIN EnterStopMode_1 */
+
+  /* USER CODE END EnterStopMode_1 */
+  HAL_SuspendTick();
+  /* Clear Status Flag before entering STOP/STANDBY Mode */
+  LL_PWR_ClearFlag_C1STOP_C1STB();
+
+  /* USER CODE BEGIN EnterStopMode_2 */
+
+  /* USER CODE END EnterStopMode_2 */
+  HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI);
+  /* USER CODE BEGIN EnterStopMode_3 */
+
+  /* USER CODE END EnterStopMode_3 */
+}
+
+void PWR_ExitStopMode(void)
+{
+  /* USER CODE BEGIN ExitStopMode_1 */
+
+  /* USER CODE END ExitStopMode_1 */
+  /* Resume sysTick : work around for debugger problem in dual core */
+  HAL_ResumeTick();
+  /*Not retained periph:
+    ADC interface
+    DAC interface USARTx, TIMx, i2Cx, SPIx
+    SRAM ctrls, DMAx, DMAMux, AES, RNG, HSEM  */
+
+  /* Resume not retained USARTx and DMA */
+  vcom_Resume();
+  /* USER CODE BEGIN ExitStopMode_2 */
+
+  /* USER CODE END ExitStopMode_2 */
+}
+
+void PWR_EnterSleepMode(void)
+{
+  /* USER CODE BEGIN EnterSleepMode_1 */
+
+  /* USER CODE END EnterSleepMode_1 */
+  /* Suspend sysTick */
+  HAL_SuspendTick();
+  /* USER CODE BEGIN EnterSleepMode_2 */
+
+  /* USER CODE END EnterSleepMode_2 */
+  HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
+  /* USER CODE BEGIN EnterSleepMode_3 */
+
+  /* USER CODE END EnterSleepMode_3 */
+}
+
+void PWR_ExitSleepMode(void)
+{
+  /* USER CODE BEGIN ExitSleepMode_1 */
+
+  /* USER CODE END ExitSleepMode_1 */
+  /* Resume sysTick */
+  HAL_ResumeTick();
+
+  /* USER CODE BEGIN ExitSleepMode_2 */
+
+  /* USER CODE END ExitSleepMode_2 */
+}
+
+/* USER CODE BEGIN EF */
+
+/* USER CODE END EF */
+
+/* Private Functions Definition -----------------------------------------------*/
+/* USER CODE BEGIN PrFD */
+
+/* USER CODE END PrFD */