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/**
******************************************************************************
* @file PWR/PWR_CurrentConsumption/Src/main.c
* @author MCD Application Team
* @brief This example shows how to use STM32F4xx PWR HAL API to enter
* and exit the stop mode.
******************************************************************************
* @attention
*
* Copyright (c) 2017 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.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/** @addtogroup STM32F4xx_HAL_Examples
* @{
*/
/** @addtogroup PWR_CurrentConsumption
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
__IO uint32_t uwCounter = 0;
/* Private function prototypes -----------------------------------------------*/
static void SystemClock_Config(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Disable data cache */
__HAL_FLASH_DATA_CACHE_DISABLE();
/* Disable instruction prefetch */
__HAL_FLASH_INSTRUCTION_CACHE_DISABLE();
__HAL_FLASH_PREFETCH_BUFFER_DISABLE();
/* Configure the system clock to 100 MHz */
SystemClock_Config();
/* Configure LED1 and LED3 */
BSP_LED_Init(LED1);
BSP_LED_Init(LED3);
/* Enable Power Clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* Check and handle if the system was resumed from Standby mode */
if(__HAL_PWR_GET_FLAG(PWR_FLAG_SB) != RESET)
{
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);
/* Infinite loop */
while (1)
{
/* Toggle LED1 */
BSP_LED_Toggle(LED1);
/* Insert a 100ms delay */
HAL_Delay(100);
}
}
/* Configure USER Button */
BSP_PB_Init(BUTTON_WAKEUP, BUTTON_MODE_GPIO);
/* Wait until USER button is pressed to enter the Low Power mode */
while(BSP_PB_GetState(BUTTON_WAKEUP) == RESET)
{
/* Toggle LED1 */
BSP_LED_Toggle(LED1);
/* Insert 1s Delay */
HAL_Delay(1000);
}
/* Loop while USER Button is maintained pressed */
while(BSP_PB_GetState(BUTTON_WAKEUP) != RESET)
{
}
#if defined (SLEEP_MODE)
/* Sleep Mode Entry
- System Running at PLL (100MHz)
- Flash 5 wait state
- Instruction and Data caches ON
- Prefetch ON
- Code running from Internal FLASH
- All peripherals disabled.
- Wake-up using EXTI Line (User Button)
*/
SleepMode_Measure();
#elif defined (STOP_MODE)
/* STOP Mode Entry
- RTC Clocked by LSI
- Regulator in LP mode
- HSI, HSE OFF and LSI OFF if not used as RTC Clock source
- No IWDG
- FLASH in deep power down mode
- Automatic Wake-up using RTC clocked by LSI (after ~20s)
*/
StopMode_Measure();
#elif defined (STANDBY_MODE)
/* STANDBY Mode Entry
- Backup SRAM and RTC OFF
- IWDG and LSI OFF
- Wake-up using WakeUp Pin (PC.00)
*/
StandbyMode_Measure();
#elif defined (STANDBY_RTC_MODE)
/* STANDBY Mode with RTC on LSI Entry
- RTC Clocked by LSI
- IWDG OFF and LSI OFF if not used as RTC Clock source
- Backup SRAM OFF
- Automatic Wake-up using RTC clocked by LSI (after ~20s)
*/
StandbyRTCMode_Measure();
#elif defined (STANDBY_RTC_BKPSRAM_MODE)
/* STANDBY Mode with RTC on LSI Entry
- RTC Clocked by LSI
- Backup SRAM ON
- IWDG OFF
- Automatic Wake-up using RTC clocked by LSI (after ~20s)
*/
StandbyRTCBKPSRAMMode_Measure();
#endif
if(uwCounter != 0)
{
BSP_LED_Init(LED1);
}
/* Infinite loop */
while (1)
{
/* Toggle LED1 */
BSP_LED_Toggle(LED1);
/* Inserted Delay */
HAL_Delay(100);
}
}
/**
* @brief System Clock Configuration
* The system Clock is configured as follows:
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 100000000
* HCLK(Hz) = 100000000
* AHB Prescaler = 1
* APB1 Prescaler = 2
* APB2 Prescaler = 1
* HSE Frequency(Hz) = 8000000
* PLL_M = 8
* PLL_N = 200
* PLL_P = 2
* PLL_Q = 7
* PLL_R = 2
* VDD(V) = 3.3
* Main regulator output voltage = Scale1 mode
* Flash Latency(WS) = 3
* @param None
* @retval None
*/
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
HAL_StatusTypeDef ret = HAL_OK;
/* Enable Power Control clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* The voltage scaling allows optimizing the power consumption when the device is
clocked below the maximum system frequency, to update the voltage scaling value
regarding system frequency refer to product datasheet. */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/* Enable HSE Oscillator and activate PLL with HSE as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 200;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
RCC_OscInitStruct.PLL.PLLR = 2;
ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
if(ret != HAL_OK)
{
while(1) { ; }
}
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
clocks dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3);
if(ret != HAL_OK)
{
while(1) { ; }
}
}
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
void Error_Handler(void)
{
/* Turn LED3 on */
BSP_LED_On(LED3);
while(1)
{
}
}
/**
* @brief SYSTICK callback
* @param None
* @retval None
*/
void HAL_SYSTICK_Callback(void)
{
HAL_IncTick();
}
/**
* @brief Wake Up Timer callback
* @param hrtc : hrtc handle
* @retval None
*/
void HAL_RTCEx_WakeUpTimerEventCallback(RTC_HandleTypeDef *hrtc)
{
/* NOTE : add the specific code to handle the RTC wake up interrupt */
uwCounter = 1;
}
/**
* @brief EXTI line detection callbacks
* @param GPIO_Pin: Specifies the pins connected EXTI line
* @retval None
*/
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
/* Configure LED1 */
BSP_LED_Init(LED1);
/* NOTE : add the specific code to handle the wake up button interrupt */
if(GPIO_Pin == WAKEUP_BUTTON_PIN)
{
uwCounter = 2;
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
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