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