基于STM32和RT-Thread Nano系统的多线程流水灯项目参考代码

以下是基于STM32和RT-Thread Nano系统的多线程流水灯项目参考代码：

#include "rtthread.h"
#include "stm32f10x.h"

#define LED1_PIN    GPIO_Pin_0
#define LED2_PIN    GPIO_Pin_1
#define LED3_PIN    GPIO_Pin_2
#define LED4_PIN    GPIO_Pin_3

static rt_thread_t led1_thread = RT_NULL;
static rt_thread_t led2_thread = RT_NULL;
static rt_thread_t led3_thread = RT_NULL;
static rt_thread_t led4_thread = RT_NULL;

static void led1_thread_entry(void *parameter)
{
    while(1)
    {
        GPIO_ResetBits(GPIOC, LED1_PIN);
        rt_thread_delay(100);
        GPIO_SetBits(GPIOC, LED1_PIN);
        rt_thread_delay(100);
    }
}

static void led2_thread_entry(void *parameter)
{
    while(1)
    {
        GPIO_ResetBits(GPIOC, LED2_PIN);
        rt_thread_delay(200);
        GPIO_SetBits(GPIOC, LED2_PIN);
        rt_thread_delay(200);
    }
}

static void led3_thread_entry(void *parameter)
{
    while(1)
    {
        GPIO_ResetBits(GPIOC, LED3_PIN);
        rt_thread_delay(300);
        GPIO_SetBits(GPIOC, LED3_PIN);
        rt_thread_delay(300);
    }
}

static void led4_thread_entry(void *parameter)
{
    while(1)
    {
        GPIO_ResetBits(GPIOC, LED4_PIN);
        rt_thread_delay(400);
        GPIO_SetBits(GPIOC, LED4_PIN);
        rt_thread_delay(400);
    }
}

void rt_init_thread_entry(void* parameter)
{
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);

    GPIO_InitTypeDef GPIO_InitStructure;
    GPIO_InitStructure.GPIO_Pin = LED1_PIN | LED2_PIN | LED3_PIN | LED4_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOC, &GPIO_InitStructure);

    led1_thread = rt_thread_create("led1",
                                    led1_thread_entry, RT_NULL,
                                    512, 20, 5);
    if(led1_thread != RT_NULL)
    {
        rt_thread_startup(led1_thread);
    }

    led2_thread = rt_thread_create("led2",
                                    led2_thread_entry, RT_NULL,
                                    512, 20, 5);
    if(led2_thread != RT_NULL)
    {
        rt_thread_startup(led2_thread);
    }

    led3_thread = rt_thread_create("led3",
                                    led3_thread_entry, RT_NULL,
                                    512, 20, 5);
    if(led3_thread != RT_NULL)
    {
        rt_thread_startup(led3_thread);
    }

    led4_thread = rt_thread_create("led4",
                                    led4_thread_entry, RT_NULL,
                                    512, 20, 5);
    if(led4_thread != RT_NULL)
    {
        rt_thread_startup(led4_thread);
    }

    while(1)
    {
        rt_thread_delay(1000);
    }
}

这段代码实现了四个LED灯的流水效果，每个LED灯的流水速度不同，通过四个线程来控制每个LED灯的流水效果，每个线程通过调用rt_thread_delay函数来控制流水速度。主线程只是用来启动四个LED灯的线程，然后进入一个无限循环等待。