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- 创建工程
- 对工程进行配置
选中主工程后。如图,点击processor expert→show views打开配置选板。在Components Library中选择FreeRTOS添加到工程
配置需要被点亮的lED。双击左侧的pin_mux:PinSettings,进行如下设置。选择需要被控制的LED
3. 代码
补全代码。代码共3个文件,如图
main.c
/** Copyright (c) 2013 - 2015, Freescale Semiconductor, Inc.* Copyright 2016-2017 NXP* All rights reserved.** THIS SOFTWARE IS PROVIDED BY NXP "AS IS" AND ANY EXPRESSED 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 NXP OR ITS 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.*/
/* ###################################################################** Filename : main.c** Processor : MPC574xG** Abstract :** Main module.** This module contains user's application code.** Settings :** Contents :** No public methods**** ###################################################################*/
/*!** @file main.c** @version 01.00** @brief** Main module.** This module contains user's application code.*/
/*!** @addtogroup main_module main module documentation** @{*/
/* MODULE main *//* Including necessary module. Cpu.h contains other modules needed for compiling.*/
#include "Cpu.h"volatile int exit_code = 0;
/* User includes (#include below this line is not maintained by Processor Expert) */
#include <stdint.h>
#include <stdbool.h>
#include "task.h"
#include "externalFunctions.h"/*! \brief The main function for the project.\details The startup initialization sequence is the following:* - startup asm routine* - main()*/
int main(void)
{/* Write your local variable definition here *//*** Processor Expert internal initialization. DON'T REMOVE THIS CODE!!! ***/
#ifdef PEX_RTOS_INITPEX_RTOS_INIT(); /* Initialization of the selected RTOS. Macro is defined by the RTOS component. */
#endif/*** End of Processor Expert internal initialization. ***//* Write your code here *//* For example: for(;;) { } */CLOCK_DRV_Init(&clockMan1_InitConfig0);PINS_DRV_Init(NUM_OF_CONFIGURED_PINS, g_pin_mux_InitConfigArr);/* tasks should be created here!!!!!! */xTaskCreate( vLEDTask, ( const char * const ) "LedTask", configMINIMAL_STACK_SIZE, (void*)0, 4, NULL );/* Start the scheduler. */vTaskStartScheduler();/*** Don't write any code pass this line, or it will be deleted during code generation. ***//*** RTOS startup code. Macro PEX_RTOS_START is defined by the RTOS component. DON'T MODIFY THIS CODE!!! ***/#ifdef PEX_RTOS_STARTPEX_RTOS_START(); /* Startup of the selected RTOS. Macro is defined by the RTOS component. */#endif/*** End of RTOS startup code. ***//*** Processor Expert end of main routine. DON'T MODIFY THIS CODE!!! ***/for(;;) {if(exit_code != 0) {break;}}return exit_code;/*** Processor Expert end of main routine. DON'T WRITE CODE BELOW!!! ***/
} /*** End of main routine. DO NOT MODIFY THIS TEXT!!! ***//* END main */
/*!** @}*/
/*** ###################################################################**** This file was created by Processor Expert 10.1 [05.21]** for the NXP C55 series of microcontrollers.**** ###################################################################*/
externalFunctions.h
/** externalFunctions.h** Created on: 2021年2月10日* Author: ruina*/#ifndef EXTERNALFUNCTIONS_H_
#define EXTERNALFUNCTIONS_H_#endif /* EXTERNALFUNCTIONS_H_ */#include "Cpu.h"void vLEDTask();
externalFunctions.c
/** externalFunctions.c** Created on: 2021年2月10日* Author: ruina*/
#include "externalFunctions.h"void vLEDTask()
{PINS_DRV_WritePin(PTA, 10, 0); //led onfor( ;; ){// PINS_DRV_ClearPins(PTA, (0 << 0U));// PINS_DRV_ClearPins(PTA, (1 << 10U));PINS_DRV_WritePin(PTA, 4, 0); //led onPINS_DRV_WritePin(PTA, 0, 1); //led offvTaskDelay( 500 );PINS_DRV_WritePin(PTA, 4, 1); //led offPINS_DRV_WritePin(PTA, 0, 0); //led on// PINS_DRV_SetPins(PTA, (1 << 0U));// PINS_DRV_SetPins(PTA, (0 << 10U));vTaskDelay( 500 );}
}
- 代码分析
如图所示
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