211 lines
5.5 KiB
C
211 lines
5.5 KiB
C
/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file stm32_lpm_if.c
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* @author MCD Application Team
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* @brief Low layer function to enter/exit low power modes (stop, sleep)
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2021 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "platform.h"
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#include "stm32_lpm.h"
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#include "stm32_lpm_if.h"
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#include "usart_if.h"
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/* USER CODE BEGIN Includes */
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/* USER CODE END Includes */
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/* External variables ---------------------------------------------------------*/
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/* USER CODE BEGIN EV */
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/* USER CODE END EV */
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/* Private typedef -----------------------------------------------------------*/
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/**
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* @brief Power driver callbacks handler
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*/
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const struct UTIL_LPM_Driver_s UTIL_PowerDriver =
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{
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PWR_EnterSleepMode,
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PWR_ExitSleepMode,
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PWR_EnterStopMode,
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PWR_ExitStopMode,
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PWR_EnterOffMode,
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PWR_ExitOffMode,
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};
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/* USER CODE BEGIN PTD */
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extern RTC_HandleTypeDef hrtc;
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void CPUcontextSave(void); /* this function is implemented in startup assembly file */
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void SystemClock_Config(void);
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void PeriphCommonClock_Config(void);
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/* Private function prototypes -----------------------------------------------*/
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//static void ExitLowPower(void);
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#if (CFG_LPM_STANDBY_SUPPORTED != 0)
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static void ExitLowPower_standby(void);
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#endif
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/* USER CODE END PTD */
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/* Private define ------------------------------------------------------------*/
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/* USER CODE BEGIN PD */
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/* USER CODE END PD */
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/* Private macro -------------------------------------------------------------*/
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/* USER CODE BEGIN PM */
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/* USER CODE END PM */
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/* Private variables ---------------------------------------------------------*/
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/* USER CODE BEGIN PV */
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/* USER CODE END PV */
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/* Private function prototypes -----------------------------------------------*/
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/* USER CODE BEGIN PFP */
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/* USER CODE END PFP */
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/* Exported functions --------------------------------------------------------*/
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void PWR_EnterOffMode(void)
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{
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/* USER CODE BEGIN EnterOffMode_1 */
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/* USER CODE END EnterOffMode_1 */
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/**
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* The systick should be disabled for the same reason than when the device enters stop mode because
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* at this time, the device may enter either OffMode or StopMode.
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*/
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HAL_SuspendTick();
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__HAL_RCC_CLEAR_RESET_FLAGS();
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/************************************************************************************
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* ENTER OFF MODE
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***********************************************************************************/
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/*
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* There is no risk to clear all the WUF here because in the current implementation, this API is called
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* in critical section. If an interrupt occurs while in that critical section before that point,
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* the flag is set and will be cleared here but the system will not enter Off Mode
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* because an interrupt is pending in the NVIC. The ISR will be executed when moving out
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* of this critical section
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*/
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__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
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/* Enter the Standby mode */
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HAL_PWR_EnterSTANDBYMode();
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/* USER CODE BEGIN PWR_EnterOffMode_2 */
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/* USER CODE END PWR_EnterOffMode_2 */
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return;
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}
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void PWR_ExitOffMode(void)
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{
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/* USER CODE BEGIN ExitOffMode_1 */
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/* USER CODE END ExitOffMode_1 */
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__HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);
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HAL_ResumeTick();
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/* USER CODE BEGIN PWR_ExitOffMode_2 */
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/* USER CODE END PWR_ExitOffMode_2 */
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return;
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}
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void PWR_EnterStopMode(void)
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{
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/* USER CODE BEGIN EnterStopMode_1 */
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/* USER CODE END EnterStopMode_1 */
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HAL_SuspendTick();
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/* Clear Status Flag before entering STOP/STANDBY Mode */
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LL_PWR_ClearFlag_C1STOP_C1STB();
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/* USER CODE BEGIN EnterStopMode_2 */
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/* USER CODE END EnterStopMode_2 */
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HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI);
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/* USER CODE BEGIN EnterStopMode_3 */
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/* USER CODE END EnterStopMode_3 */
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}
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void PWR_ExitStopMode(void)
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{
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/* USER CODE BEGIN ExitStopMode_1 */
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/* USER CODE END ExitStopMode_1 */
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/* Resume sysTick : work around for debugger problem in dual core */
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HAL_ResumeTick();
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/*Not retained periph:
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ADC interface
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DAC interface USARTx, TIMx, i2Cx, SPIx
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SRAM ctrls, DMAx, DMAMux, AES, RNG, HSEM */
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/* Resume not retained USARTx and DMA */
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vcom_Resume();
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/* USER CODE BEGIN ExitStopMode_2 */
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/* USER CODE END ExitStopMode_2 */
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}
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void PWR_EnterSleepMode(void)
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{
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/* USER CODE BEGIN EnterSleepMode_1 */
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/* USER CODE END EnterSleepMode_1 */
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/* Suspend sysTick */
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HAL_SuspendTick();
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/* USER CODE BEGIN EnterSleepMode_2 */
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/* USER CODE END EnterSleepMode_2 */
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HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
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/* USER CODE BEGIN EnterSleepMode_3 */
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/* USER CODE END EnterSleepMode_3 */
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}
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void PWR_ExitSleepMode(void)
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{
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/* USER CODE BEGIN ExitSleepMode_1 */
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/* USER CODE END ExitSleepMode_1 */
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/* Resume sysTick */
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HAL_ResumeTick();
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/* USER CODE BEGIN ExitSleepMode_2 */
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/* USER CODE END ExitSleepMode_2 */
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}
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/* USER CODE BEGIN EF */
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/* USER CODE END EF */
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/* Private Functions Definition -----------------------------------------------*/
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/* USER CODE BEGIN PrFD */
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/* USER CODE END PrFD */
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