UNO+5100扩展板做WWW服务器总不稳定

bbbao · 发表于 2014-8-4 16:17:53

用的IDE中的webserver例子简单修改，现象：

1）网页刷新总是出乱码；
2）时间长了webserver会停止服务，但IP地址可以ping通。

请教下：不稳定是UNO固有的现象也就是硬件本身就不是很稳定，还是代码问题，和编译环境有多大关系？

弘毅 · 发表于 2014-8-4 16:50:39

uno的ram比较少。。。。

zoologist · 发表于 2014-8-4 17:03:22

弘毅发表于 2014-8-4 16:50
uno的ram比较少。。。。

请教一下，如果和 ram 有关系，那么理论上非常有可能被堵死耗光？

即便是高版本的话，如果我发起很多 session登录的话，也有可能搞死？

kevinzhang · 发表于 2014-8-4 17:46:07

楼主上图上代码看看

bbbao · 发表于 2014-8-7 16:05:37

代码就是案例里的，就改了下IP地址，WEB总是不稳定刷几分钟就停止了，但IP可以ping通
/*
  Web Server

A simple web server that shows the value of the analog input pins.
using an Arduino Wiznet Ethernet shield.

Circuit:
* Ethernet shield attached to pins 10, 11, 12, 13
* Analog inputs attached to pins A0 through A5 (optional)

created 18 Dec 2009
by David A. Mellis
modified 9 Apr 2012
by Tom Igoe

*/

#include <SPI.h>
#include <Ethernet.h>

// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192,168,0,177);

// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);

void setup() {
// Open serial communications and wait for port to open:
  Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
  }

  // start the Ethernet connection and the server:
  Ethernet.begin(mac, ip);
  server.begin();
  Serial.print("server is at ");
  Serial.println(Ethernet.localIP());
}

void loop() {
  // listen for incoming clients
  EthernetClient client = server.available();
  if (client) {
Serial.println("new client");
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
   if (client.available()) {
      char c = client.read();
      Serial.write(c);
      // if you've gotten to the end of the line (received a newline
      // character) and the line is blank, the http request has ended,
      // so you can send a reply
      if (c == '\n' && currentLineIsBlank) {
      // send a standard http response header
      client.println("HTTP/1.1 200 OK");
      client.println("Content-Type: text/html");
      client.println("Connection: close");  // the connection will be closed after completion of the response
   client.println("Refresh: 5");  // refresh the page automatically every 5 sec
      client.println();
      client.println("<!DOCTYPE HTML>");
      client.println("<html>");
      // output the value of each analog input pin
      for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
         int sensorReading = analogRead(analogChannel);
         client.print("analog input ");
         client.print(analogChannel);
         client.print(" is ");
         client.print(sensorReading);
         client.println("<br />");
      }
      client.println("</html>");
      break;
      }
      if (c == '\n') {
      // you're starting a new line
      currentLineIsBlank = true;
      }
      else if (c != '\r') {
      // you've gotten a character on the current line
      currentLineIsBlank = false;
      }
   }
}
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
Serial.println("client disonnected");
  }
}

bbbao · 发表于 2014-8-7 16:13:09

后来我试验了telnet的案例，比用80端口的WEB稳定很多，
有什么区别么？HTML1.1和浏览器支持有问题么？

kevinzhang · 发表于 2014-8-7 18:10:28

官网的这个程序我用过，测试跑过24小时，没有啥问题。基本排除程序问题。硬件上照片看看。

bbbao · 发表于 2014-8-11 12:12:55

以下是串口监测显示,刷新几次后串口就不关闭了,应该是程序运行中间死掉了.
GET / HTTP/1.1
Accept: */*
Accept-Language: zh-cn
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB7.4; InfoPath.2; .NET4.0C; .NET CLR 2.0.50727)
Accept-Encoding: gzip, deflate
Host: 192.168.1.177
Connection: Keep-Alive

client disonnected
new client
GET / HTTP/1.1
Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/xaml+xml, application/x-ms-xbap, application/x-ms-application, */*
Accept-Language: zh-cn
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB7.4; InfoPath.2; .NET4.0C; .NET CLR 2.0.50727)
Accept-Encoding: gzip, deflate
Host: 192.168.1.177
Connection: Keep-Alive

client disonnected
new client
GET / HTTP/1.1
Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/xaml+xml, application/x-ms-xbap, application/x-ms-application, */*
Accept-Language: zh-cn
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB7.4; InfoPath.2; .NET4.0C; .NET CLR 2.0.50727)
Accept-Encoding: gzip, deflate
Host: 192.168.1.177
Connection: Keep-Alive

bbbao · 发表于 2014-8-20 12:07:31

还是

不稳定,这东西看来不是主流啊,怎么就没办法用呢?

bbbao · 发表于 2014-8-23 00:12:55

还是不行，只好归结硬件的问题了。主板45元，W5100 42元，可能是赶上个质量不好的板子了。

wxws · 发表于 2014-8-27 16:01:12

LOOP 中，加个 Blink without Delay 例子中的闪灯看是否死掉，最好再测一下内存

bbbao · 发表于 2014-8-29 12:59:37

wxws 发表于 2014-8-27 16:01
LOOP 中，加个 Blink without Delay 例子中的闪灯看是否死掉，最好再测一下内存

谢谢我试验下

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UNO+5100扩展板 做WWW服务器 总不稳定

UNO+5100扩展板做WWW服务器总不稳定