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《RT-Thread 的启动流程》

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 */
static rt_thread_t led1_thread = RT_NULL;
static rt_thread_t key_thread = RT_NULL;

static void led1_thread_entry(void* parameter);
static void key_thread_entry(void* parameter);


int MX_RT_Thread_Init(void)
{
	rt_kprintf("This is an RTT thread management experiment! \n");
	rt_kprintf("Press K1 to suspend the thread, and Press K2 to restore the thread! \n"); 
	led1_thread = /* 线程控制块指针 */
	rt_thread_create( "led1", /* 线程名字 */
				led1_thread_entry, /* 线程入口函数 */
				RT_NULL, /* 线程入口函数参数 */
				512, /* 线程栈大小 */
				4, /* 线程的优先级 */
				20); /* 线程时间片 */
	/* 启动线程，开启调度 */
	if (led1_thread != RT_NULL)
		rt_thread_startup(led1_thread);
	else
		return -1;
	
	key_thread = /* 线程控制块指针 */
	rt_thread_create( "key", /* 线程名字 */
				key_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 (key_thread != RT_NULL)
		rt_thread_startup(key_thread);
	else
		return -1;
}


/*
*************************************************************************
* 线程定义
*************************************************************************
*/
static void led1_thread_entry(void* parameter)
{
	while (1) {
		HAL_GPIO_WritePin(LED1_GPIO_Port, LED1_Pin, GPIO_PIN_SET);
		rt_thread_delay(500); /* 延时 500 个 tick */
		rt_kprintf("led1_thread running,LED1_ON\r\n");
		HAL_GPIO_WritePin(LED1_GPIO_Port, LED1_Pin, GPIO_PIN_RESET);
		rt_thread_delay(500); /* 延时 500 个 tick */
		rt_kprintf("led1_thread running,LED1_OFF\r\n");
	}
}
static void key_thread_entry(void* parameter)
{
	rt_err_t uwRet = RT_EOK;
	while (1) {/* K1 被按下 */ 
		if ( HAL_GPIO_ReadPin(KEY1_GPIO_Port,KEY1_Pin) == GPIO_PIN_SET ) { 
			rt_kprintf("Suspend LED1 thread!\n");
			uwRet = rt_thread_suspend(led1_thread);/* 挂起 LED1 线程 */
			if (RT_EOK == uwRet) {
				rt_kprintf("LED1 thread suspended successfully!\n");
			} else {
				rt_kprintf("Suspended LED1 thread failed! Failed code: 0x%lx\n",uwRet);
			}
		}/* K2 被按下 */
		if ( HAL_GPIO_ReadPin(KEY2_GPIO_Port,KEY2_Pin) == GPIO_PIN_SET ) {
			rt_kprintf("Restore LED1 thread!\n");
			uwRet = rt_thread_resume(led1_thread);/* 恢复 LED1 线程！ */
			if (RT_EOK == uwRet) {
				rt_kprintf("Restore LED1 thread successfully!\n");
			} else {
				rt_kprintf("Restore LED1 thread failed! Failed code: 0x%lx\n",uwRet);
			}
		}
		rt_thread_delay(20);
	}
}

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(七）- 线程管理

概述

一、STM32CubeMx配置

二、KEIL IDE

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