基于 STM32CubeMX 添加 RT-Thread 操作系统组件(十六)- 双向链表

概述 

       本篇只要介绍这么使用STM32CubeMx工具添加RT-Thread操作系统组件,码代码的IDE是keil。介绍单线程SRAM静态内存使用。如果还不知道,这么使用STM32CubeMx工具添加RT-Thread操作系统组件,请移步到《基于 STM32CubeMX 添加 RT-Thread 操作系统组件(一)- 详细介绍操作步骤》文章阅读。好了,喝杯茶先^_^,继续前行。上一篇介绍关于《中断管理》

一、STM32CubeMx配置

CubeMx参照上一篇文章介绍来配置即可,这里就不再做讲解了。

二、KEIL IDE

  1. 在Application/User文件夹,新建app_rt_thread.c文件,并添加如下代码:
    #include "rtthread.h"
    #include "main.h"
    #include "stdio.h"
    #include <string.h>
    
    
    
    
    /* 定义线程控制块 */
    static rt_thread_t test1_thread = RT_NULL;
    static rt_thread_t test2_thread = RT_NULL;
    
    
    /* 函数声明 */
    static void test1_thread_entry(void* parameter);
    static void test2_thread_entry(void* parameter);
    
    
    int MX_RT_Thread_Init(void)
    {
    	rt_kprintf("This is an RTT bidirectional linked list operation experiment!\n");
    	test1_thread = /* 线程控制块指针 */
    	rt_thread_create( "test1", /* 线程名字 */
    				test1_thread_entry, /* 线程入口函数 */
    				RT_NULL, /* 线程入口函数参数 */
    				512, /* 线程栈大小 */
    				2, /* 线程的优先级 */
    				20); /* 线程时间片 */
    	/* 启动线程,开启调度 */
    	if (test1_thread != RT_NULL)
    		rt_thread_startup(test1_thread);
    	else
    		return -1;
    	
    	test2_thread = /* 线程控制块指针 */
    	rt_thread_create( "test2", /* 线程名字 */
    				test2_thread_entry, /* 线程入口函数 */
    				RT_NULL, /* 线程入口函数参数 */
    				512, /* 线程栈大小 */
    				3, /* 线程的优先级 */
    				20); /* 线程时间片 */
    	/* 启动线程,开启调度 */
    	if (test2_thread != RT_NULL)
    		rt_thread_startup(test2_thread);
    	else
    		return -1;
    }
    
    /*
    ************************************************************
    * 线程定义
    *********************************************************
    */
    static void test1_thread_entry(void* parameter)
    {
    	rt_list_t *head; /* 定义一个双向链表的头节点 */
    	rt_list_t *node1; /* 定义一个双向链表的头节点 */
    	rt_list_t *node2; /* 定义一个双向链表的头节点 */
    	
    	head = rt_malloc(sizeof(rt_list_t));/* 申请动态内存 */
    	if (RT_NULL == head) /* 没有申请成功 */
    		rt_kprintf("Dynamic memory application failed!\n");
    	else
    		rt_kprintf("Dynamic memory application is successful, the address of the head node is %d!\n",head);
    	
    	rt_kprintf("\n Bidirectional linked list initialization......\n");
    	rt_list_init(head);
    	
    	if (rt_list_isempty(head))
    		rt_kprintf("Bidirectional linked list initialization succeeded!\n\n");
    	
    	/* 插入节点:顺序插入与从末尾插入 */
    	rt_kprintf("Add node and tail node additions......\n");
    	
    	/* 动态申请第一个结点的内存 */
    	node1 = rt_malloc(sizeof(rt_list_t));
    	
    	/* 动态申请第二个结点的内存 */
    	node2 = rt_malloc(sizeof(rt_list_t));
    	
    	rt_kprintf("Add the first and second nodes.....\n");
    	/* 因为这是在某个节点后面添加一个节点函数
    	为后面的 rt_list_insert_before(某个节点之前)
    	添加节点做铺垫,两个函数添加完之后的顺序是
    	head -> node1 -> node2 */
    	rt_list_insert_after(head,node2);
    	rt_list_insert_before(node2,node1);
    	
    	if ((node1->prev == head) && (node2->prev == node1))
    		rt_kprintf("Add node successfully!\n\n");
    	else
    		rt_kprintf("Add node failed!\n\n");
    	
    	rt_kprintf("Remove nodes......\n"); /* 删除已有节点 */
    	rt_list_remove(node1);
    	rt_free(node1);/* 释放第一个节点的内存 */
    	if (node2->prev == head)
    		rt_kprintf("Node removal successful\n\n");
    	
    	/* 线程都是一个无限循环,不能返回 */
    	while (1) {
    		HAL_GPIO_TogglePin(LED1_GPIO_Port, LED1_Pin);
    		rt_thread_delay(500); //每 500ms 扫描一次
    	}
    }
    
    static void test2_thread_entry(void* parameter)
    {
    	/* 线程都是一个无限循环,不能返回 */
    	while (1) {
    		rt_kprintf("Thread running!\n");
    		HAL_GPIO_TogglePin(LED2_GPIO_Port, LED2_Pin);
    		rt_thread_delay(1000); //每 1000ms 扫描一次
    	}
    }
    
    
    
    
  2. 在main.c文件添加如下代码:
    /* USER CODE END Header */
    
    /* Includes ------------------------------------------------------------------*/
    #include "main.h"
    #include "usart.h"
    #include "gpio.h"
    
    /* Private includes ----------------------------------------------------------*/
    /* USER CODE BEGIN Includes */
    
    /* USER CODE END Includes */
    
    /* Private typedef -----------------------------------------------------------*/
    /* USER CODE BEGIN PTD */
    extern int MX_RT_Thread_Init(void);
    /* USER CODE END PTD */
    
    /* Private define ------------------------------------------------------------*/
    /* USER CODE BEGIN PD */
    /* USER CODE END PD */
    
    /* Private macro -------------------------------------------------------------*/
    /* USER CODE BEGIN PM */
    
    /* USER CODE END PM */
    
    /* Private variables ---------------------------------------------------------*/
    
    /* USER CODE BEGIN PV */
    
    /* USER CODE END PV */
    
    /* Private function prototypes -----------------------------------------------*/
    void SystemClock_Config(void);
    /* USER CODE BEGIN PFP */
    
    /* USER CODE END PFP */
    
    /* Private user code ---------------------------------------------------------*/
    /* USER CODE BEGIN 0 */
    
    /* USER CODE END 0 */
    
    /**
      * @brief  The application entry point.
      * @retval int
      */
    int main(void)
    {
      /* USER CODE BEGIN 1 */
    
      /* USER CODE END 1 */
    
      /* MCU Configuration--------------------------------------------------------*/
    
      /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
      HAL_Init();
    
      /* USER CODE BEGIN Init */
    
      /* USER CODE END Init */
    
      /* Configure the system clock */
      SystemClock_Config();
    
      /* USER CODE BEGIN SysInit */
    
      /* USER CODE END SysInit */
    
      /* Initialize all configured peripherals */
      MX_GPIO_Init();
      MX_USART1_UART_Init();
      /* USER CODE BEGIN 2 */
      MX_RT_Thread_Init();
      /* USER CODE END 2 */
    
      /* Infinite loop */
      /* USER CODE BEGIN WHILE */
      while (1)
      {
        /* USER CODE END WHILE */
    
        /* USER CODE BEGIN 3 */
      }
      /* USER CODE END 3 */
    }
  3. 自定义rt_hw_console_output()函数,在kservice.c文件添加中(重映射串口控制台到 rt_kprintf 函数)代码:
    #include "usart.h"
    .
    .
    .
    
    RT_WEAK void rt_hw_console_output(const char *str)
    {
        /* empty console output */
    	/* 进入临界段 */
    	rt_enter_critical();
    	/* 直到字符串结束 */
    	while (*str!='\0') {
    	/* 换行 */
    	if (*str=='\n') {
    		HAL_UART_Transmit(&huart1,(uint8_t *)'\r',1,1000);
    	}
    		HAL_UART_Transmit(&huart1,(uint8_t *)(str++),1,1000);
    	}
    	/* 退出临界段 */
    	rt_exit_critical();
    }

  4. 运行结果
        

    源码:git​​​​​​​

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转载自blog.csdn.net/qq_36075612/article/details/107629108