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《串口重映射到 rt_kprintf 函数》

一、STM32CubeMx配置

二、KEIL IDE

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"


///* 定义线程控制块指针 */
static rt_thread_t thread1 = RT_NULL;
static rt_thread_t thread2 = RT_NULL;
static rt_thread_t thread3 = RT_NULL;

static void thread1_entry(void* parameter);
static void thread2_entry(void* parameter);
static void thread3_entry(void* parameter);

#define THREAD1_STACK_SIZE 	 512
#define THREAD1_PRIORITY		 3
#define THREAD1_TIMESLICE    20

#define THREAD2_STACK_SIZE   512
#define THREAD2_PRIORITY     4
#define THREAD2_TIMESLICE    20

#define THREAD3_STACK_SIZE   512
#define THREAD3_PRIORITY     5
#define THREAD3_TIMESLICE    20


//初始化线程函数
int MX_RT_Thread_Init(void)
{
	thread1 = /* 线程控制块指针 */
	rt_thread_create("thread1", /* 线程名字，字符串形式 */
										thread1_entry, /* 线程入口函数 */
										RT_NULL, /* 线程入口函数参数 */
										THREAD1_STACK_SIZE, /* 线程栈大小，单位为字节 */
										THREAD1_PRIORITY, /* 线程优先级，数值越大，优先级越小 */
										THREAD1_TIMESLICE); /* 线程时间片 */
	if (thread1 != RT_NULL)
		rt_thread_startup(thread1);
	else
		return -1;
	
	thread2 = /* 线程控制块指针 */
	rt_thread_create("thread2", /* 线程名字，字符串形式 */
										thread2_entry, /* 线程入口函数 */
										RT_NULL, /* 线程入口函数参数 */
										THREAD2_STACK_SIZE, /* 线程栈大小，单位为字节 */
										THREAD2_PRIORITY, /* 线程优先级，数值越大，优先级越小 */
										THREAD2_TIMESLICE); /* 线程时间片 */
	if (thread2 != RT_NULL)
		rt_thread_startup(thread2);
	else
		return -1;

	thread3 = /* 线程控制块指针 */
	rt_thread_create("thread3", /* 线程名字，字符串形式 */
										thread3_entry, /* 线程入口函数 */
										RT_NULL, /* 线程入口函数参数 */
										THREAD3_STACK_SIZE, /* 线程栈大小，单位为字节 */
										THREAD3_PRIORITY, /* 线程优先级，数值越大，优先级越小 */
										THREAD3_TIMESLICE); /* 线程时间片 */
	if (thread3 != RT_NULL)
		rt_thread_startup(thread3);
	else
		return -1;
}

/*
*************************************************************************
* 线程定义
*************************************************************************
*/
static void thread1_entry(void* parameter)
{
	while (1)
	{
		rt_kprintf("thread1 running\r\n");
		rt_thread_delay(500); /* 延时 500 个 tick */
	}
}

static void thread2_entry(void* parameter)
{
	while (1)
	{
		rt_kprintf("thread2 running\r\n");
		rt_thread_delay(1000); /* 延时 1000 个 tick */
	}
}

static void thread3_entry(void* parameter)
{
	while (1)
	{
		rt_kprintf("thread3 running\r\n");
		rt_thread_delay(1500); /* 延时 1500 个 tick */
	}
}

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 */
}

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();
}

运行结果

源码：git

基于 STM32CubeMX 添加 RT-Thread 操作系统组件(六）- RT-Thread 的启动流程

概述

一、STM32CubeMx配置

二、KEIL IDE

猜你喜欢