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仅需下面两个文件即可:
cpu_utils.c
(5 KB, 下载次数: 280)
cpu_utils.h
(2.92 KB, 下载次数: 266)
使用方法：- 1- in the _OS_Config.h file (ex. FreeRTOSConfig.h) enable the following macros :
- - #define configUSE_IDLE_HOOK 1
- - #define configUSE_TICK_HOOK 1
- 2- in the _OS_Config.h define the following macros :
- - #define traceTASK_SWITCHED_IN() extern void StartIdleMonitor(void); \
- StartIdleMonitor()
- - #define traceTASK_SWITCHED_OUT() extern void EndIdleMonitor(void); \
- EndIdleMonitor()
代码：
cpu_utils.c
- /**
- ******************************************************************************
- * @file cpu_utils.c
- * @author MCD Application Team
- * @version V1.1.0
- * @date 20-November-2014
- * @brief Utilities for CPU Load calculation
- ******************************************************************************
- * @attention
- *
- * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- ******************************************************************************
- */
- /********************** NOTES **********************************************
- To use this module, the following steps should be followed :
- 1- in the _OS_Config.h file (ex. FreeRTOSConfig.h) enable the following macros :
- - #define configUSE_IDLE_HOOK 1
- - #define configUSE_TICK_HOOK 1
- 2- in the _OS_Config.h define the following macros :
- - #define traceTASK_SWITCHED_IN() extern void StartIdleMonitor(void); \
- StartIdleMonitor()
- - #define traceTASK_SWITCHED_OUT() extern void EndIdleMonitor(void); \
- EndIdleMonitor()
- *******************************************************************************/
- /* Includes ------------------------------------------------------------------*/
- #include "cpu_utils.h"
- /* Private typedef -----------------------------------------------------------*/
- /* Private define ------------------------------------------------------------*/
- /* Private macro -------------------------------------------------------------*/
- /* Private function prototypes -----------------------------------------------*/
- /* Private variables ---------------------------------------------------------*/
- xTaskHandle xIdleHandle = NULL;
- __IO uint32_t osCPU_Usage = 0;
- uint32_t osCPU_IdleStartTime = 0;
- uint32_t osCPU_IdleSpentTime = 0;
- uint32_t osCPU_TotalIdleTime = 0;
- /* Private functions ---------------------------------------------------------*/
- /**
- * @brief Application Idle Hook
- * @param None
- * @retval None
- */
- void vApplicationIdleHook(void)
- {
- if( xIdleHandle == NULL )
- {
- /* Store the handle to the idle task. */
- xIdleHandle = xTaskGetCurrentTaskHandle();
- }
- }
- /**
- * @brief Application Idle Hook
- * @param None
- * @retval None
- */
- void vApplicationTickHook (void)
- {
- static int tick = 0;
-
- if(tick ++ > CALCULATION_PERIOD)
- {
- tick = 0;
-
- if(osCPU_TotalIdleTime > 1000)
- {
- osCPU_TotalIdleTime = 1000;
- }
- osCPU_Usage = (100 - (osCPU_TotalIdleTime * 100) / CALCULATION_PERIOD);
- osCPU_TotalIdleTime = 0;
- }
- }
- /**
- * @brief Start Idle monitor
- * @param None
- * @retval None
- */
- void StartIdleMonitor (void)
- {
- if( xTaskGetCurrentTaskHandle() == xIdleHandle )
- {
- osCPU_IdleStartTime = xTaskGetTickCountFromISR();
- }
- }
- /**
- * @brief Stop Idle monitor
- * @param None
- * @retval None
- */
- void EndIdleMonitor (void)
- {
- if( xTaskGetCurrentTaskHandle() == xIdleHandle )
- {
- /* Store the handle to the idle task. */
- osCPU_IdleSpentTime = xTaskGetTickCountFromISR() - osCPU_IdleStartTime;
- osCPU_TotalIdleTime += osCPU_IdleSpentTime;
- }
- }
- /**
- * @brief Stop Idle monitor
- * @param None
- * @retval None
- */
- uint16_t osGetCPUUsage (void)
- {
- return (uint16_t)osCPU_Usage;
- }
- /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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发表于 2018-1-20 15:46:27
发表于 2018-1-21 09:26:03
楼主
发表于 2020-12-1 14:38:53
