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1网站建设的目标是什么意思,搭建网页整体框架技术,途牛旅游线路网站建设分析,做坑人网站二维码硬件平台：STM32L431RCT6 RT-Thread版本：4.1.0 目录一.新建工程二.配置工程编辑三.移植pm驱动四.配置cubeMX 五.修改驱动文件，干掉报错六.增加用户低功耗逻辑 1.设置唤醒方式 2.设置睡眠时以及唤醒后动作编辑 3.增加测试命…

硬件平台：STM32L431RCT6

RT-Thread版本：4.1.0

一.新建工程

二.配置工程

编辑三.移植pm驱动

四.配置cubeMX

五.修改驱动文件，干掉报错

六.增加用户低功耗逻辑

1.设置唤醒方式

2.设置睡眠时以及唤醒后动作

编辑

3.增加测试命令

七.下载验证

一.新建工程

二.配置工程

打开pm

这时候编译会报错

提示空闲线程栈太小了，改到2048就不会提示报错了

三.移植pm驱动

此时PM框架虽然已经打开，但是还是一个空架子，没有驱动。所以要去RTT官方仓库里边拷贝一套L4系列PM驱动。驱动文件位置在rt-thread\bsp\stm32\libraries\HAL_Drivers。

需要以下三个文件

然后将drv_lptim.c 和drv_pm.c放在drivers目录下，drv_lptim.h放在drivers\include目录下，这时候编译会报错，先不理会。

四.配置cubeMX

lptim的HAL需要使用cubeMX配置生成

SYS和RCC全部保持默认就行，不然程序可能运行不了

时钟配置为80M

打开LPTIM1

打开串口1

然后点击生成，关闭cubeMX

五.修改驱动文件，干掉报错

这时候编译错误就会从40多个减少到20多个，大多数都是头文件包含的问题，在drv_pm.c文件添加头文件

#include "rt-thread\components\drivers\include\drivers\pm.h"
#include <rtthread.h>
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>

报错进一步减少

现在就是缺少一些PM所需函数，这些函数需要我们自己实现

在board.c文件中rt_hw_board_init函数下方添加如下代码

#include "rt-thread\components\drivers\include\drivers\pm.h"void SystemClock_MSI_ON(void)
{RCC_OscInitTypeDef RCC_OscInitStruct = {0};RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};/* Initializes the CPU, AHB and APB busses clocks */RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;RCC_OscInitStruct.MSIState = RCC_MSI_ON;if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK){RT_ASSERT(0);}RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK;RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_MSI;if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK){Error_Handler();}
}void SystemClock_MSI_OFF(void)
{RCC_OscInitTypeDef RCC_OscInitStruct = {0};RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;RCC_OscInitStruct.HSIState = RCC_MSI_OFF;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; /* No update on PLL */if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK){Error_Handler();}
}void SystemClock_80M(void)
{RCC_OscInitTypeDef RCC_OscInitStruct;RCC_ClkInitTypeDef RCC_ClkInitStruct;/**Initializes the CPU, AHB and APB busses clocks */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 = 1;RCC_OscInitStruct.PLL.PLLN = 20;RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK){Error_Handler();}/**Initializes the CPU, AHB and APB busses clocks*/RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;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_4) != HAL_OK){Error_Handler();}
}void SystemClock_24M(void)
{RCC_OscInitTypeDef RCC_OscInitStruct;RCC_ClkInitTypeDef RCC_ClkInitStruct;/** Initializes the CPU, AHB and APB busses clocks */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 = 1;RCC_OscInitStruct.PLL.PLLN = 12;RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV4;if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK){Error_Handler();}/** Initializes the CPU, AHB and APB busses clocks */RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;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_1) != HAL_OK){Error_Handler();}
}void SystemClock_2M(void)
{RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};RCC_OscInitTypeDef RCC_OscInitStruct = {0};/* MSI is enabled after System reset, update MSI to 2Mhz (RCC_MSIRANGE_5) */RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;RCC_OscInitStruct.MSIState = RCC_MSI_ON;RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_5;RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK){/* Initialization Error */Error_Handler();}/* Select MSI as system clock source and configure the HCLK, PCLK1 and PCLK2clocks dividers */RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK;RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_MSI;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){/* Initialization Error */Error_Handler();}
}/*** @brief  Configures system clock after wake-up from STOP: enable HSI, PLL*         and select PLL as system clock source.* @param  None* @retval None*/
void SystemClock_ReConfig(uint8_t mode)
{SystemClock_MSI_ON();switch (mode){case PM_RUN_MODE_HIGH_SPEED:case PM_RUN_MODE_NORMAL_SPEED:SystemClock_80M();break;case PM_RUN_MODE_MEDIUM_SPEED:SystemClock_24M();break;case PM_RUN_MODE_LOW_SPEED:SystemClock_2M();break;default:break;}// SystemClock_MSI_OFF();
}

并在board.h里声明

void SystemClock_Config(void);
void SystemClock_MSI_ON(void);
void SystemClock_MSI_OFF(void);
void SystemClock_80M(void);
void SystemClock_24M(void);
void SystemClock_2M(void);
void SystemClock_ReConfig(uint8_t mode);

这时候编译就不会在出现问题，PM驱动已经完成

六.增加用户低功耗逻辑

之前步骤已经将驱动配置完了，现在需要增加一些逻辑，比如什么时候该进入睡眠，设置用什么方式唤醒，唤醒之后要做一些什么

1.设置唤醒方式

本篇文章使用PA0中断唤醒，在mian.c里添加代码

#include "board.h"
#include "stm32l431xx.h"
#include "rt-thread\components\drivers\include\drivers\pm.h"#define PM_INT_PIN GET_PIN(A, 0) // 定义 PM 中断引脚为 PA0void PM_int_callback(void *args)
{rt_kprintf("PM Data Ready Interrupt Triggered!\n");
}void PM_int_init(void)
{// 设置 PA0 为输入模式rt_kprintf("PM INT pin init\r\n");rt_pin_mode(PM_INT_PIN, PIN_MODE_INPUT_PULLUP);// 绑定中断回调函数rt_pin_attach_irq(PM_INT_PIN, PIN_IRQ_MODE_RISING, PM_int_callback, RT_NULL);// 使能中断rt_pin_irq_enable(PM_INT_PIN, PIN_IRQ_ENABLE);
}INIT_BOARD_EXPORT(PM_int_init);

下载到板子上，这时候触发PA0中断，终端打印现象，说明PA0中断可以正常触发，触发后将唤醒睡眠的单片机

2.设置睡眠时以及唤醒后动作

#define LED_1 GET_PIN(C, 1) // LED1引脚定义
void pm_notify(rt_uint8_t event, rt_uint8_t mode, void *data)
{if (event == RT_PM_ENTER_SLEEP && mode == PM_SLEEP_MODE_DEEP) // 进入睡眠{rt_pin_write(LED_1, PIN_HIGH);rt_kprintf("enter pm\n");}else if (event == RT_PM_EXIT_SLEEP && mode == PM_SLEEP_MODE_DEEP) // 退出休眠{rt_pm_dump_status(); // 打印 PM 组件的状态rt_pm_run_enter(PM_RUN_MODE_HIGH_SPEED);clock_information();               // 打印时钟频率rt_pm_release(PM_SLEEP_MODE_DEEP); // 释放 DeepSleep 模式rt_pm_request(PM_SLEEP_MODE_NONE); // 请求工作模式rt_pin_write(LED_1, PIN_LOW);}
}int main(void)
{clock_information();rt_pm_notify_set(pm_notify, 0);return RT_EOK;
}

这时候编译会报错

将pm.c里边的static void rt_pm_dump_status(void)的static删除就行

3.增加测试命令

在main.c里边随便找个地方放进去

int stop_mode_test(void)
{rt_pm_request(PM_SLEEP_MODE_DEEP); // 请求 stop 模式rt_pm_dump_status();               // 打印 PM 组件状态rt_pm_release(PM_SLEEP_MODE_NONE); // 释放正常工作模式，释放后才能进入 stop 模式rt_pm_dump_status();               // 打印 PM 组件状态return 0;
}
MSH_CMD_EXPORT(stop_mode_test, stop_mode_test);

mian.c全部内容

/** Copyright (c) 2006-2025, RT-Thread Development Team** SPDX-License-Identifier: Apache-2.0** Change Logs:* Date           Author       Notes* 2025-03-08     RT-Thread    first version*/#include <rtthread.h>#define DBG_TAG "main"
#define DBG_LVL DBG_LOG
#include <rtdbg.h>#include <rtdevice.h>
#include "board.h"
#include "stm32l431xx.h"
#include "rt-thread\components\drivers\include\drivers\pm.h"#define PM_INT_PIN GET_PIN(A, 0) // 定义 PM 中断引脚为 PA0void PM_int_callback(void *args)
{rt_kprintf("PM Data Ready Interrupt Triggered!\n");
}void PM_int_init(void)
{// 设置 PA0 为输入模式rt_kprintf("PM INT pin init\r\n");rt_pin_mode(PM_INT_PIN, PIN_MODE_INPUT_PULLUP);// 绑定中断回调函数rt_pin_attach_irq(PM_INT_PIN, PIN_IRQ_MODE_RISING, PM_int_callback, RT_NULL);// 使能中断rt_pin_irq_enable(PM_INT_PIN, PIN_IRQ_ENABLE);
}INIT_BOARD_EXPORT(PM_int_init);#define LED_1 GET_PIN(C, 1) // LED1引脚定义
void pm_notify(rt_uint8_t event, rt_uint8_t mode, void *data)
{if (event == RT_PM_ENTER_SLEEP && mode == PM_SLEEP_MODE_DEEP) // 进入睡眠{rt_pin_write(LED_1, PIN_HIGH);rt_kprintf("enter pm\n");}else if (event == RT_PM_EXIT_SLEEP && mode == PM_SLEEP_MODE_DEEP) // 退出休眠{rt_pm_dump_status(); // 打印 PM 组件的状态rt_pm_run_enter(PM_RUN_MODE_HIGH_SPEED);clock_information();               // 打印时钟频率rt_pm_release(PM_SLEEP_MODE_DEEP); // 释放 DeepSleep 模式rt_pm_request(PM_SLEEP_MODE_NONE); // 请求工作模式rt_pin_write(LED_1, PIN_LOW);}
}int stop_mode_test(void)
{rt_pm_request(PM_SLEEP_MODE_DEEP); // 请求 stop 模式rt_pm_dump_status();               // 打印 PM 组件状态rt_pm_release(PM_SLEEP_MODE_NONE); // 释放正常工作模式，释放后才能进入 stop 模式rt_pm_dump_status();               // 打印 PM 组件状态return 0;
}
MSH_CMD_EXPORT(stop_mode_test, stop_mode_test);int main(void)
{clock_information();rt_pm_notify_set(pm_notify, 0);return RT_EOK;
}