mirror of
https://github.com/STMicroelectronics/STM32CubeF0.git
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266 lines
8.3 KiB
C
266 lines
8.3 KiB
C
/**
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******************************************************************************
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* @file PWR/PWR_CurrentConsumption/Src/main.c
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* @author MCD Application Team
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* @brief This sample code shows how to use STM32F0xx PWR HAL API to enter
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* and exit the sleep/stop/standby modes, to measure power consumption
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* in these different low power modes.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/** @addtogroup STM32F0xx_HAL_Examples
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* @{
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*/
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/** @addtogroup PWR_CurrentConsumption
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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__IO uint32_t UserButtonStatus = 0; /* set to 1 after User Button interrupt */
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Main program
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* @param None
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* @retval None
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*/
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int main(void)
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{
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/* STM32F0xx HAL library initialization:
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- Configure the Flash prefetch
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- Systick timer is configured by default as source of time base, but user
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can eventually implement his proper time base source (a general purpose
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timer for example or other time source), keeping in mind that Time base
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duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
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handled in milliseconds basis.
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- Low Level Initialization
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*/
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HAL_Init();
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/* Configure LED */
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BSP_LED_Init(LED2);
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/* Configure the system clock to 48 MHz */
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SystemClock_Config();
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/* Enable Power Clock */
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__HAL_RCC_PWR_CLK_ENABLE();
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/* Check and handle if the system was resumed from StandBy mode */
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if (__HAL_PWR_GET_FLAG(PWR_FLAG_SB) != RESET)
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{
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__HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);
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/* Turn on the LED2 and keep
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it on for 2 sec. to indicate
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exit from stand-by mode */
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BSP_LED_On(LED2);
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HAL_Delay(2000);
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}
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/* Infinite loop */
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while(1)
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{
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/* Configure User push-button */
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BSP_PB_Init(BUTTON_USER, BUTTON_MODE_EXTI);
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UserButtonStatus = 0;
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/* Wait until User push-button is pressed to enter the Low Power mode.
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In the meantime, LED2 is blinking */
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while (UserButtonStatus == 0)
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{
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/* Toggle LED2 */
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BSP_LED_Toggle(LED2);
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HAL_Delay(100);
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}
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/* Loop while User push-button is maintained pressed */
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while(BSP_PB_GetState(BUTTON_USER) != SET){}
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/* Make sure LED2 is turned off to
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reduce low power mode consumption */
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BSP_LED_Off(LED2);
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#if defined (SLEEP_MODE)
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/* Sleep Mode Entry
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- System Running at PLL (48 MHz)
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- Flash 1 wait state
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- Instruction and Data caches ON
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- Prefetch ON
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- Code running from Internal FLASH
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- All peripherals disabled.
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- Wakeup using EXTI Line (User push-button PC.13)
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*/
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SleepMode_Measure();
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#elif defined (STOP_MODE)
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/* STOP Mode Entry
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- RTC Clocked by LSI
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- Regulator in LP mode
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- HSI, HSE OFF and LSI OFF if not used as RTC Clock source
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- No IWDG
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- Wakeup using EXTI Line (User push-button PC.13)
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*/
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StopMode_Measure();
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#elif defined (STANDBY_MODE)
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/* STANDBY Mode Entry
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- RTC OFF
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- IWDG and LSI OFF
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- Wakeup using WakeUp Pin (wire Vdd to PA.00)
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*/
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StandbyMode_Measure();
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#endif /* SLEEP_MODE */
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}
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}
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/**
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* @brief System Clock Configuration
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* The system Clock is configured as follow :
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* System Clock source = PLL (HSI)
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* SYSCLK(Hz) = 48000000
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* HCLK(Hz) = 48000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 1
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* HSI Frequency(Hz) = 8000000
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* PREDIV = 2
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* PLLMUL = 12
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* Flash Latency(WS) = 1
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* @param None
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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/* No HSE Oscillator on Nucleo, Activate PLL with HSI as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
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RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV2;
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RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL12;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct)!= HAL_OK)
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{
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Error_Handler();
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}
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/* Select PLL as system clock source and configure the HCLK, PCLK1 clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1)!= HAL_OK)
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{
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Error_Handler();
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}
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}
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/**
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* @brief This function is executed in case of error occurrence.
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* @param None
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* @retval None
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*/
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void Error_Handler(void)
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{
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while(1)
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{
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/* Error if LED2 is slowly blinking (1 sec. period) */
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BSP_LED_On(LED2);
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HAL_Delay(1000);
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}
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}
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/**
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* @brief SYSTICK callback
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* @param None
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* @retval None
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*/
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void HAL_SYSTICK_Callback(void)
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{
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HAL_IncTick();
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}
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/**
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* @brief EXTI line detection callbacks
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* @param GPIO_Pin: Specifies the pins connected EXTI line
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* @retval None
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*/
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void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
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{
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if (GPIO_Pin == USER_BUTTON_PIN)
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{
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UserButtonStatus = 1;
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}
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(char *file, uint32_t line)
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{
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{
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}
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}
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#endif
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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