【极海APM32F407 Tiny Board】rt-thread系统下网页控制LED灯

TL-LED

【极海APM32F407 Tiny Board】rt-thread系统下网页控制LED灯 [复制链接]

本帖最后由 TL-LED 于 2023-6-30 17:33 编辑

这篇来测试下极海APM32F407 Tiny Board开发板在rt-thread系统下使用网页来控制板子上的LED2指示灯，在https://bbs.eeworld.com.cn/thread-1247049-1-1.html这篇的基础上增加网页部分程序。

一、程序部分

1.1、在程序中增加

1.2、httpserver_conn.c

#include "lwip/opt.h"
#include "lwip/arch.h"
#include "lwip/api.h"

#include "board.h"
#include <stdbool.h>


#define LED2_ON   rt_pin_write(LED2_PIN, PIN_LOW);  
#define LED2_OFF	rt_pin_write(LED2_PIN, PIN_HIGH);	

#if LWIP_NETCONN

#ifndef HTTPD_DEBUG
#define HTTPD_DEBUG         LWIP_DBG_OFF
#endif


const static char http_html_hdr[] =
     "HTTP/1.1 200 OK\r\nContent-type: text/html\r\n\r\n";

 const unsigned char Led1On_Data[] =
"<HTML> \
 <head><title>HTTP LED Control</title></head> \
 <center> \
 <p> \
 <font size=\"6\">LED<font style = \"color:red\">已打开！</font> \
 <form method=post action=\"off\" name=\"ledform\"> \
 <input type=\"submit\" value=\"关闭\" style=\"width:80px;height:30px;\"></form> \
 </center> \
 </HTML> ";

 const unsigned char Led1Off_Data[] =
"<HTML> \
 <head><title>HTTP LED Control</title></head> \
 <center> \
 <p> \
 <font size=\"6\">LED<font style = \"color:red\">已关闭！</font> \
 <form method=post action=\"on\" name=\"ledform\"> \
 <input type=\"submit\" value=\"打开\" style=\"width:80px;height:30px;\"></form> \
 </center> \
 </HTML> ";

 static const char http_index_html[] =
"<html><head><title>Congrats!</title></head>\
 <body><h2 align=\"center\">Welcome to APM32F407 lwIP HTTP Server!</h2>\
 <p align=\"center\">This is a small test page : http control led.</p>\
 <p align=\"center\"><a href=\"https://bbs.eeworld.com.cn/\">\
 <font size=\"6\"> 电子工程世界论坛 </font> </a></p>\
 <a href=\"https://bbs.eeworld.com.cn/elecplay/content/82c9e772\">\
 <img src=\"https://bbs.eeworld.com.cn/data/attachment/forum/202304/17/142507d3f4ddxd4shg3hen.jpg\"/></a>\
 </body></html>";

 static bool led_on = false;

 void httpserver_send_html(struct netconn *conn, bool led_status)
 {
     netconn_write(conn, http_html_hdr,
                 sizeof(http_html_hdr)-1, NETCONN_NOCOPY);

     if (led_status == true)
         netconn_write(conn, Led1On_Data,
                     sizeof(Led1On_Data)-1, NETCONN_NOCOPY);
     else
         netconn_write(conn, Led1Off_Data,
                     sizeof(Led1Off_Data)-1, NETCONN_NOCOPY);

     netconn_write(conn, http_index_html,
                 sizeof(http_index_html)-1, NETCONN_NOCOPY);

 }

 static void httpserver_serve(struct netconn *conn)
 {
     struct netbuf *inbuf;
     char *buf;
     u16_t buflen;
     err_t err;

     err = netconn_recv(conn, &inbuf);

     if (err == ERR_OK)
     {
         netbuf_data(inbuf, (void**)&buf, &buflen);
         if (buflen>=5 &&
                 buf[0]=='G' &&
                 buf[1]=='E' &&
                 buf[2]=='T' &&
                 buf[3]==' ' &&
                 buf[4]=='/' )
         {

             httpserver_send_html(conn, led_on);
         }
         else if (buflen>=8&&buf[0]=='P'&&buf[1]=='O'
                 &&buf[2]=='S'&&buf[3]=='T')
         {
             if (buf[6]=='o'&&buf[7]=='n')
             {
                 led_on =true;
                 LED2_ON;
								 
             }
             else if (buf[6]=='o'&&buf[7]=='f'&&buf[8]=='f')
             {
                 led_on = false;
								 LED2_OFF;
             }
             httpserver_send_html(conn, led_on);
         }

         netbuf_delete(inbuf);
     }
     netconn_close(conn);
 }

 static void httpserver_thread(void *arg)
 {
     struct netconn *conn, *newconn;
     err_t err;
     LWIP_UNUSED_ARG(arg);

     conn = netconn_new(NETCONN_TCP);
     LWIP_ERROR("http_server: invalid conn", (conn != NULL), return;);

     led_on = true;
     LED2_ON;
     netconn_bind(conn, NULL, 80);
     netconn_listen(conn);

     do
     {
         err = netconn_accept(conn, &newconn);
         if (err == ERR_OK)
         {
             httpserver_serve(newconn);
             netconn_delete(newconn);
         }
     }
     while (err == ERR_OK);
     netconn_close(conn);
     netconn_delete(conn);
 }

 void httpserver_init()
 {
 sys_thread_new("http_server_netconn",httpserver_thread, NULL, 1024, 4);
 }

 #endif

1.3、main.c

#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>
#include "httpserver-netconn.h"

int main(void)
{
    uint32_t sysclock = 0;
    /* set LED2 pin mode to output */
    rt_pin_mode(LED2_PIN, PIN_MODE_OUTPUT);
    /* Print system clock */
    sysclock = RCM_ReadSYSCLKFreq();
    rt_kprintf("System Clock: %d\n", sysclock);
	
		httpserver_init();

    while (1)
    {
        //rt_pin_write(LED2_PIN, PIN_HIGH);
        //rt_thread_mdelay(500);
        //rt_pin_write(LED2_PIN, PIN_LOW);
        rt_thread_mdelay(500);
    }
}

1.4、程序源码

apm32f407ig-minibroard.rar (6.95 MB, 下载次数: 3)

二、程序运行

2.1、串口输出

查看开发板的IP地址

2.2、网页运行

输入ip：192.168.1.102

2.3、运行视频

200

【极海APM32F407 Tiny Board】rt-thread系统下网页控制LED灯 [复制链接]

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