[问答]

STM32L010C6Tx如何使用睡眠模式？

问答对人有帮助，内容完整，我也想知道答案 0 你好。我正在使用 STM32L010C6Tx。我希望我的微处理器在处理后休眠 10 秒。我想使用睡眠模式。我没有任何中断引脚。我希望它在 10 秒后醒来。我能怎么做？ 0
2022-12-14 07:33:43　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × wang21cj 该类别下有 44 个回答。邀请回答新星之火12138 该类别下有 41 个回答。邀请回答 chm5 该类别下有 39 个回答。邀请回答 hgimtk 该类别下有 33 个回答。邀请回答 HengDu 该类别下有 30 个回答。邀请回答 hwp0415229 该类别下有 28 个回答。邀请回答 jghgfdssas 该类别下有 28 个回答。邀请回答颜刚YanG 该类别下有 26 个回答。邀请回答可口可甜该类别下有 26 个回答。邀请回答 kingnet6688 该类别下有 26 个回答。邀请回答 jenny042 该类别下有 25 个回答。邀请回答 kingnet9999 该类别下有 25 个回答。邀请回答 andyfly7 该类别下有 25 个回答。邀请回答麻酱该类别下有 25 个回答。邀请回答 zyh34997 该类别下有 25 个回答。邀请回答柱子图宁该类别下有 25 个回答。邀请回答云汉007 该类别下有 24 个回答。邀请回答 ggfvxv 该类别下有 24 个回答。邀请回答 heks 该类别下有 24 个回答。邀请回答 iyfhnvbn 该类别下有 24 个回答。邀请回答举报乐侨珂相关推荐 • 使用STM32L010C6tx处理器的内存编程出错该怎样去解决呢 151 • 用ST-LINK安装好程序后，断电归还时上次安装的程序不工作了怎么解决？ 161 • 用STM32L071C8Tx做低功耗STOP模式无法使用Debug是为什么？ 715 • 在STM32L010RBTX上使用I2C无法正常工作怎么解决？ 209 • STM32L010 CubeMX在TIMx配置为ETR2时产生不必要的LSE等待怎么处理？ 279 • STM32L151C8T6待机模式唤醒检测不到按键 2501 • 请问进入睡眠模式是否会停止STM32CubeMX中的通用定时器？ 208 • 如何对STM32L452RET6的低功耗模式进行调试呢 863 • 哪个是STM8L152C6T6发现板中的UART-TX和RX引脚？ 2930 • 如何去实现一个基于STM32F103C8T6+NRF24L01的低功耗无线人体传感器设计呢 1067 1个回答

答案对人有帮助，有参考价值 0 找到附上我的 STM32L010x 代码。它利用 RTC 唤醒定时器每 10 秒将 CPU 从睡眠模式唤醒。 RTC 由 LSE（精确的外部低速振荡器）计时。我将异步 RTC 分频器设置为 127，将同步 RTC 分频器设置为 255 以获得 1 Hz（查看参考手册 RM0451，同步预分频器输出上的这个时钟标记为 ck_spre）然后使用 ck_spre 时钟为 RTC 唤醒定时器供电（因此 1 个时钟周期需要 1 秒）。 RTC 唤醒定时器设置为 0x0009，每 10 秒触发一次中断。如果您的电路板上没有适用于 LSE 的 32.768k 石英，您可能希望将 RTC 时钟源从 LSE 更改为 LSI。那么唤醒周期将远不准确。在进入睡眠模式之前，您需要禁用 SysTick 定时器，否则它的中断将在 1 ms 内唤醒 CPU（SysTick 通常设置为每 1 ms 引发一次中断）。 STM32CubeMX 生成的 HAL 代码在 main 函数的开头配置 SysTick。要禁用 SysTick，您可以调用： HAL_SuspendTick(); 唤醒后，我在再次进入睡眠模式之前切换 PA5，以使用我的 Saleae 数字分析仪验证正确的唤醒周期（见下图）。通过移除关联的 GPIO 代码，可以轻松移除此部分。 /* USER CODE BEGIN Header / /* ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @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 "main.h" / Private includes ----------------------------------------------------------/ / USER CODE BEGIN Includes / / USER CODE END Includes / / Private typedef -----------------------------------------------------------/ / 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 ---------------------------------------------------------/ RTC_HandleTypeDef hrtc; / USER CODE BEGIN PV / / USER CODE END PV / / Private function prototypes -----------------------------------------------/ void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_RTC_Init(void); / USER CODE BEGIN PFP / / USER CODE END PFP / / Private user code ---------------------------------------------------------/ / USER CODE BEGIN 0 / / USER CODE END 0 / /* * @brief The application entry point. * @retval int / int main(void) { / USER CODE BEGIN 1 / / USER CODE END 1 / / MCU Configuration--------------------------------------------------------/ / Reset of all peripherals, Initializes the Flash interface and the Systick. / HAL_Init(); / USER CODE BEGIN Init / / USER CODE END Init / / Configure the system clock / SystemClock_Config(); / USER CODE BEGIN SysInit / / USER CODE END SysInit / / Initialize all configured peripherals / MX_GPIO_Init(); MX_RTC_Init(); / USER CODE BEGIN 2 / HAL_RTCEx_DeactivateWakeUpTimer(&hrtc); __HAL_RTC_WAKEUPTIMER_CLEAR_FLAG(&hrtc, RTC_FLAG_WUTF); __HAL_RTC_WAKEUPTIMER_EXTI_CLEAR_FLAG(); HAL_RTCEx_SetWakeUpTimer_IT(&hrtc, 0x0009, RTC_WAKEUPCLOCK_CK_SPRE_16BITS); //ck_spre ~1 Hz (40 kHz div127 div 315) used as clock for the RTC wake-up timer / USER CODE END 2 / / Infinite loop / / USER CODE BEGIN WHILE / while (1) { / USER CODE END WHILE / / USER CODE BEGIN 3 / HAL_SuspendTick(); // Disable SysTick, otherwise it would wake-up the CPU within 1 ms HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI); HAL_ResumeTick(); // Enable SysTick after wake-up HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5); // Toggle with a pin to check the wake-up period } / USER CODE END 3 / } /* * @brief System Clock Configuration * @retval None / void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; RCC_PeriphCLKInitTypeDef PeriphClkInit = {0}; /* Configure the main internal regulator output voltage / __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); /* Configure LSE Drive Capability / HAL_PWR_EnableBkUpAccess(); __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW); /* Initializes the RCC Oscillators according to the specified parameters * in the RCC_OscInitTypeDef structure. / RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI\|RCC_OSCILLATORTYPE_LSE; RCC_OscInitStruct.LSEState = RCC_LSE_ON; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /* Initializes the CPU, AHB and APB buses clocks / RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK\|RCC_CLOCKTYPE_SYSCLK \|RCC_CLOCKTYPE_PCLK1\|RCC_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK) { Error_Handler(); } PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC; PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE; if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) { Error_Handler(); } } /* * @brief RTC Initialization Function * @param None * @retval None / static void MX_RTC_Init(void) { / USER CODE BEGIN RTC_Init 0 / / USER CODE END RTC_Init 0 / / USER CODE BEGIN RTC_Init 1 / / USER CODE END RTC_Init 1 / /* Initialize RTC Only / hrtc.Instance = RTC; hrtc.Init.HourFormat = RTC_HOURFORMAT_24; hrtc.Init.AsynchPrediv = 127; hrtc.Init.SynchPrediv = 255; hrtc.Init.OutPut = RTC_OUTPUT_DISABLE; hrtc.Init.OutPutRemap = RTC_OUTPUT_REMAP_NONE; hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH; hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN; if (HAL_RTC_Init(&hrtc) != HAL_OK) { Error_Handler(); } / USER CODE BEGIN RTC_Init 2 / / USER CODE END RTC_Init 2 / } /* * @brief GPIO Initialization Function * @param None * @retval None / static void MX_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStruct = {0}; / GPIO Ports Clock Enable / __HAL_RCC_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); /Configure GPIO pin Output Level / HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET); /Configure GPIO pin : PA5 / GPIO_InitStruct.Pin = GPIO_PIN_5; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); } / USER CODE BEGIN 4 / void HAL_RTCEx_WakeUpTimerEventCallback(RTC_HandleTypeDef hrtc) { // Callback called from the RTC interrupt service routine } /* USER CODE END 4 / /* * @brief This function is executed in case of error occurrence. * @retval None / void Error_Handler(void) { / USER CODE BEGIN Error_Handler_Debug / / User can add his own implementation to report the HAL error return state / __disable_irq(); while (1) { } / USER CODE END Error_Handler_Debug / } #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 CODE BEGIN 6 / / User can add his own implementation to report the file name and line number, ex: printf("Wrong parameters value: file %s on line %drn", file, line) / / USER CODE END 6 / } #endif / USE_FULL_ASSERT */

2022-12-14 11:47:52 评论举报夏焕丽