PM组件定时器

启用PM组件后，软件定时器工作不正常

发布于 2020-10-21 19:52:36 浏览：960 订阅该版

2 个回答

张世争 2020-10-21

学以致用

TigerLu 2020-10-21

这家伙很懒，什么也没写！

张世争 2020-10-22

学以致用

TigerLu 2020-10-22

这家伙很懒，什么也没写！

@张世争 我是在gitee上下载了最新的Sunwancn/rt-thread，直接用里面的stm32l476-st-nucleo的工程，PCB板子是自己layout的。外部高频晶振用的8M，外部低频晶振用的是32.768k，在SystemClock_Config函数中我配置了lptimer的时钟为LSE。具体时钟配置在board.c中。请帮我分析分析，谢谢。`这里输入代码`/*
 * Copyright (c) 2006-2019, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2019-02-05     gw           first version
 * 2019-05-05     Zero-Free    Adding multiple  configurations for system clock frequency
 */

#include <board.h>

void SystemClock_Config(void)
{
    RCC_OscInitTypeDef RCC_OscInitStruct = {0};
    RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
    RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};

#ifdef BSP_USING_ONCHIP_RTC
    /**Configure LSE Drive Capability
    */
    HAL_PWR_EnableBkUpAccess();
    __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW);
#endif
    /**Initializes the CPU, AHB and APB busses clocks
    */
    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_ON;
		RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
    RCC_OscInitStruct.PLL.PLLM = 1;
    RCC_OscInitStruct.PLL.PLLN = 10;
    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();
    }
		
		
		
//    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;
//    PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
		
		PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_LPUART1 |RCC_PERIPHCLK_LPTIM1;
    PeriphClkInit.Lpuart1ClockSelection = RCC_LPUART1CLKSOURCE_LSE;
		PeriphClkInit.Lptim1ClockSelection = RCC_LPTIM1CLKSOURCE_LSE;
		
    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
    {
        Error_Handler();
    }
		
		
		
    /**Configure the main internal regulator output voltage
    */
    if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
    {
        Error_Handler();
    }
}

#ifdef RT_USING_PM

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_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;
    RCC_PeriphCLKInitTypeDef PeriphClkInit;

/** Initializes the CPU, AHB and APB busses clocks */
    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
    RCC_OscInitStruct.HSIState = RCC_HSI_ON;
    RCC_OscInitStruct.HSICalibrationValue = 16;
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
    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_DIV8;
    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_3) != HAL_OK)
    {
        Error_Handler();
    }
    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;
    PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != 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 PCLK2
       clocks 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();
}

#endif

张世争 2020-10-22

学以致用

TigerLu 2020-10-26

这家伙很懒，什么也没写！

你好，我用RT-thread studio 导入你的例程看了下，然后我参照你的例程我自己也用RT-thread studio新建了一个L476的工程，仿真发现程序一直在LPTIM_WaitForFlag函数里面，在此函数的        result = HAL_TIMEOUT处打断点，全速运行停在此处，然后单步仿真发现出现在pm_hwtim_start函数里面（即pm_timer_start函数里面），我在LPTIM1_IRQHandler中断函数里面打了断点也没有进去过。我新建工程师调试串口选的是LPUART1，它也和LPTIM1一样配置成LSE的，该调试串口能正常打印数据的。我用sdk里面的timer_app.c测试，发现进入深度睡眠就再也不打印信息了。`这里输入代码`/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2018-08-07     Tanek        first implementation
 * 2019-05-06     Zero-Free    adapt to the new power management interface
 */

#include <board.h>
#include <rtthread.h>
#include <rtdevice.h>

#ifndef RT_USING_TIMER_SOFT
    #error "Please enable soft timer feature!"
#endif

#define TIMER_APP_DEFAULT_TICK  (RT_TICK_PER_SECOND * 2)

#ifdef RT_USING_PM

static rt_timer_t timer1;

static void _timeout_entry(void *parameter)
{
    rt_kprintf("current tick: %ld\n", rt_tick_get());
}

static int timer_app_init(void)
{
    timer1 = rt_timer_create("timer_app",
                             _timeout_entry,
                             RT_NULL,
                             TIMER_APP_DEFAULT_TICK,
                             RT_TIMER_FLAG_PERIODIC | RT_TIMER_FLAG_SOFT_TIMER);
    if (timer1 != RT_NULL)
    {
        rt_timer_start(timer1);

/* keep in timer mode */
        rt_pm_request(PM_SLEEP_MODE_DEEP);

return 0;
    }
    else
    {
        return -1;
    }
}
INIT_APP_EXPORT(timer_app_init);

#endif /* RT_USING_PM */