FreeRTOS Series 1: FreeRTOS transplant experiment

Go to the official website of Zhengdian Atoms to download the corresponding materials. Anyone who sees this should know it. Here is mainly to supplement the details of my own learning.

In D:\Explorer F4 data disk (disk A)\[Punctual Atom] STM32F103 minimum system board data\4, program source code\4, extended routines\5, FreeRTOS routines\5, FreeRTOS routines\FreeRTOS experiment 2 -1 FreeRTOS porting experiment\USER open

The files in it correspond to where they are transplanted from and how they work. There is a development manual

Corresponding directory: D:\Explorer F4 Data Disk (Disk A)\[Punctual Atom]STM32F103 Minimum System Board Data\STM32F1 FreeRTOS Development Manual_V1.1\STM32F1 FreeRTOS Development Manual_V1.1

Understanding in FreeRTOSConfig.h

Corresponding URL: FreeRTOS - Free Real-Time Operating System Configuration Constants and Configuration Options - Free open source real-time operating system for small real-time embedded systems

You can also see it by directly clicking on the corresponding header file

Then modify the corresponding led.c and led.h in the routine. When I am here, the smallest system board is only one ledPA8

#include "led.h"

//初始化PA8为输出口.并使能这个口的时钟		    
//LED IO初始化

void LED_Init(void)
{
 
  GPIO_InitTypeDef GPIO_InitStruct;
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
  GPIO_InitStruct.GPIO_Mode=GPIO_Mode_Out_PP;
  GPIO_InitStruct.GPIO_Pin=GPIO_Pin_8;
  GPIO_InitStruct.GPIO_Speed=GPIO_Speed_50MHz;
  GPIO_Init(GPIOA, &GPIO_InitStruct);
  GPIO_SetBits(GPIOA,GPIO_Pin_8);
		
}

#ifndef __LED_H
#define __LED_H	 
#include "sys.h"


#define LED0 PAout(8)// PA8


void LED_Init(void);//初始化

		 				    
#endif

The main function does not need to be modified

#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "FreeRTOS.h"
#include "task.h"
/************************************************
 ALIENTEK 战舰STM32F103开发板 FreeRTOS实验2-1
 FreeRTOS移植实验-库函数版本
 技术支持：www.openedv.com
 淘宝店铺：http://eboard.taobao.com 
 关注微信公众平台微信号："正点原子"，免费获取STM32资料。
 广州市星翼电子科技有限公司  
 作者：正点原子 @ALIENTEK
************************************************/

//任务优先级
#define START_TASK_PRIO		1
//任务堆栈大小	
#define START_STK_SIZE 		128  
//任务句柄
TaskHandle_t StartTask_Handler;
//任务函数
void start_task(void *pvParameters);

//任务优先级
#define LED0_TASK_PRIO		2
//任务堆栈大小	
#define LED0_STK_SIZE 		50  
//任务句柄
TaskHandle_t LED0Task_Handler;
//任务函数
void led0_task(void *pvParameters);

//任务优先级
#define LED1_TASK_PRIO		3
//任务堆栈大小	
#define LED1_STK_SIZE 		50  
//任务句柄
TaskHandle_t LED1Task_Handler;
//任务函数
void led1_task(void *pvParameters);

int main(void)
{
	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);//设置系统中断优先级分组4	 
	delay_init();	    				//延时函数初始化	  
	uart_init(115200);					//初始化串口
	LED_Init();		  					//初始化LED
	 
	//创建开始任务
    xTaskCreate((TaskFunction_t )start_task,            //任务函数
                (const char*    )"start_task",          //任务名称
                (uint16_t       )START_STK_SIZE,        //任务堆栈大小
                (void*          )NULL,                  //传递给任务函数的参数
                (UBaseType_t    )START_TASK_PRIO,       //任务优先级
                (TaskHandle_t*  )&StartTask_Handler);   //任务句柄              
    vTaskStartScheduler();          //开启任务调度
}

//开始任务任务函数
void start_task(void *pvParameters)
{
    taskENTER_CRITICAL();           //进入临界区
    //创建LED0任务
    xTaskCreate((TaskFunction_t )led0_task,     	
                (const char*    )"led0_task",   	
                (uint16_t       )LED0_STK_SIZE, 
                (void*          )NULL,				
                (UBaseType_t    )LED0_TASK_PRIO,	
                (TaskHandle_t*  )&LED0Task_Handler);   
    //创建LED1任务
    xTaskCreate((TaskFunction_t )led1_task,     
                (const char*    )"led1_task",   
                (uint16_t       )LED1_STK_SIZE, 
                (void*          )NULL,
                (UBaseType_t    )LED1_TASK_PRIO,
                (TaskHandle_t*  )&LED1Task_Handler);         
    vTaskDelete(StartTask_Handler); //删除开始任务
    taskEXIT_CRITICAL();            //退出临界区
}

//LED0任务函数 
void led0_task(void *pvParameters)
{
    static float float_num=0.01;
    while(1)
    {
        float_num+=0.01f;
        taskENTER_CRITICAL();           //进入临界区
			printf("111\r\n"); 
        printf("float_num的值为: %.4f\r\n",float_num);   /*串口打印结果*/
        taskEXIT_CRITICAL();            //退出临界区
			printf("222\r\n"); 
        vTaskDelay(1000);
		
			 
    }
}   

//LED1任务函数
void led1_task(void *pvParameters)
{
    while(1)
    {   printf("333\r\n");
        LED0=0;
        vTaskDelay(200);
        LED0=1;
        vTaskDelay(800);
    }

}

When the phenomenon is realized, the led flickers, and the serial port can be seen

That's it. The development board used is STM32F103RCT6 of Lushen Electronics

FreeRTOS Series 1: FreeRTOS transplant experiment

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