UNO+5100扩展板 做WWW服务器 总不稳定
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？
uno的ram比较少。。。。 弘毅 发表于 2014-8-4 16:50 static/image/common/back.gif
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？ 楼主上图上代码看看:) 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");
}
} 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？
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。 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
还是:@不稳定,这东西看来不是主流啊,怎么就没办法用呢? 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。 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 wxws 发表于 2014-8-27 16:01 static/image/common/back.gif
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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