RTT大赛作品：AB32VG1开发板—RGB交替闪烁

【RTT大赛作品连载】AB32VG1开发板——RGB交替闪烁

1. 实验目的

让板载 RGB 灯交替闪烁

2. 开发板硬件平台

RGB灯硬件电路，可知，使用 RGB 灯组要使用

PE1 —— 红

PA1 —— 蓝

PE4 —— 绿

3. 软件编写

在 application 目录下，新建 rgb.c 和 rgb.h

//rgb.c
/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2021-11-06     Administrator       the first version
 */
#include "rgb.h"
#include "rtthread.h"
#include "board.h"

struct Led_s
{
    uint8_t LED_R;
    uint8_t LED_B;
    uint8_t LED_G;
};   //  定义一个 RGB 结构体

struct Led_s Led;
rt_thread_t rgb_thread = RT_NULL;

void RGB_Init(void)
{
    //  获得 led
    Led.LED_R = rt_pin_get("PE.1");
    Led.LED_G = rt_pin_get("PE.4");
    Led.LED_B = rt_pin_get("PA.1");
    //  设置引脚为输出方式
    rt_pin_mode(Led.LED_R, PIN_MODE_OUTPUT);
    rt_pin_mode(Led.LED_G, PIN_MODE_OUTPUT);
    rt_pin_mode(Led.LED_B, PIN_MODE_OUTPUT);

    rt_kprintf("rgb init success\n");
}

//传入参数  on=1：对应亮，on=0:对应灭
//红灯驱动
void RGB_Red(rt_bool_t on)
{
    rt_pin_write(Led.LED_G, PIN_HIGH);
    rt_pin_write(Led.LED_B, PIN_HIGH);
    if (on) {
        rt_pin_write(Led.LED_R, PIN_LOW);
    } else {
        rt_pin_write(Led.LED_R, PIN_HIGH);
    }
}
//蓝灯驱动
void RGB_Blue(rt_bool_t on){
    rt_pin_write(Led.LED_G, PIN_HIGH);
    rt_pin_write(Led.LED_R, PIN_HIGH);
    if (on) {
        rt_pin_write(Led.LED_B, PIN_LOW);
    } else {
        rt_pin_write(Led.LED_B, PIN_HIGH);
    }
}
//绿灯驱动
void RGB_Green(rt_bool_t on)
{
    rt_pin_write(Led.LED_R, PIN_HIGH);
    rt_pin_write(Led.LED_B, PIN_HIGH);
    if (on) {
        rt_pin_write(Led.LED_G, PIN_LOW);
    } else {
        rt_pin_write(Led.LED_G, PIN_HIGH);
    }
}

void rgb_switch(void)
{
    static uint8_t led_num = 0;
    if(led_num == 0)
        RGB_Red(1);
    else if(led_num == 1)
        RGB_Blue(1);
    else if(led_num == 2)
        RGB_Green(1);
    led_num++;
    if(led_num == 3)
        led_num = 0;
}

void rgb_thread_entry(void* p)
{
    RGB_Init();
    while(1)
    {
        rt_thread_mdelay(500);
        rgb_switch();
    }
}

static int Thread_RGB(void)
{
    rgb_thread = rt_thread_create("rgb", rgb_thread_entry, RT_NULL, 512, 10, 10);
    if(rgb_thread == RT_NULL)
    {
        rt_kprintf("Thread_GRB Init ERROR");
        return RT_ERROR;
    }
    rt_thread_startup(rgb_thread);
}

INIT_APP_EXPORT(Thread_RGB);

//rgb.h
/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2021-11-06     Administrator       the first version
 */
#ifndef APPLICATIONS_RGB_H_
#define APPLICATIONS_RGB_H_

#endif /* APPLICATIONS_RGB_H_ */

修改main.c

/*
 * Copyright (c) 2020-2021, Bluetrum Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2020/12/10     greedyhao    The first version
 */

/**
 * Notice!
 * All functions or data that are called during an interrupt need to be in RAM.
 * You can do it the way exception_isr() does.
 */

#include 
#include "board.h"

int main(void)
{
    rt_kprintf("Hello, world\n");

    while (1)
    {
        rt_thread_mdelay(500);
        rt_thread_mdelay(500);
    }
}

4. 程序编译下载

编译程序，点击小锤子即可。

下载程序

打开我们下载的Downloader软件，双击Downloader.exe

配置连接串口，千万不要搞错串口号哦。

选择工程目录下的\Debug\rtthread.dcf，这里我的完整目录是

D:\RT-ThreadStudio\workspace\ab32vg1_demo\Debug\rtthread.dcf

点击开始即可下载成功

5. 实验现象：

download 串口打印 msh 控制台信息。

板载RGB灯，红色绿色蓝色交替闪烁。

6. 总结

每一个伟大的程序员都要从 led 及 helloworld 开始，哈哈。

编辑：fqj