新手求助W5100模块最基础的问题！
我是使用arduino的新手，最近在捣鼓w5100，遇到了一点问题。我在测试官方的样例代码，
http://bildr.org/2011/06/arduino-ethernet-pin-control/
#include <Ethernet.h>
#include <SPI.h>
boolean reading = false;
////////////////////////////////////////////////////////////////////////
//CONFIGURE
////////////////////////////////////////////////////////////////////////
//byte ip[] = { 192, 168, 0, 199 }; //Manual setup only
//byte gateway[] = { 192, 168, 0, 1 }; //Manual setup only
//byte subnet[] = { 255, 255, 255, 0 }; //Manual setup only
// if need to change the MAC address (Very Rare)
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
EthernetServer server = EthernetServer(80); //port 80
////////////////////////////////////////////////////////////////////////
void setup(){
Serial.begin(9600);
//Pins 10,11,12 & 13 are used by the ethernet shield
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
Ethernet.begin(mac);
//Ethernet.begin(mac, ip, gateway, subnet); //for manual setup
server.begin();
Serial.println(Ethernet.localIP());
}
void loop(){
// listen for incoming clients, and process qequest.
checkForClient();
}
void checkForClient(){
EthernetClient client = server.available();
if (client) {
// an http request ends with a blank line
boolean currentLineIsBlank = true;
boolean sentHeader = false;
while (client.connected()) {
if (client.available()) {
if(!sentHeader){
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println();
sentHeader = true;
}
char c = client.read();
if(reading && c == ' ') reading = false;
if(c == '?') reading = true; //found the ?, begin reading the info
if(reading){
Serial.print(c);
switch (c) {
case '2':
//add code here to trigger on 2
triggerPin(2, client);
break;
case '3':
//add code here to trigger on 3
triggerPin(3, client);
break;
case '4':
//add code here to trigger on 4
triggerPin(4, client);
break;
case '5':
//add code here to trigger on 5
triggerPin(5, client);
break;
case '6':
//add code here to trigger on 6
triggerPin(6, client);
break;
case '7':
//add code here to trigger on 7
triggerPin(7, client);
break;
case '8':
//add code here to trigger on 8
triggerPin(8, client);
break;
case '9':
//add code here to trigger on 9
triggerPin(9, client);
break;
}
}
if (c == '\n' && currentLineIsBlank)break;
if (c == '\n') {
currentLineIsBlank = true;
}else if (c != '\r') {
currentLineIsBlank = false;
}
}
}
delay(1); // give the web browser time to receive the data
client.stop(); // close the connection:
}
}
void triggerPin(int pin, EthernetClient client){
//blink a pin - Client needed just for HTML output purposes.
client.print("Turning on pin ");
client.println(pin);
client.print("<br>");
digitalWrite(pin, HIGH);
delay(25);
digitalWrite(pin, LOW);
delay(25);
}
我看了代码的大意，意思是通过在浏览器输入类似于http://192.168.1.167/?23456789这样的命令然后会依次在2,3,4，5,6,7,8,9这几个Pin上设为高电平（如果有灯的话就亮），并且制作一个相应的网页作为反馈。
其中该设备的ip和读取的字符串会在串口监视里输出，可现在的问题就是，我的ip输出了，但是读取的字符串却没有显示，相应的反馈网页也是显示该网页无法访问。
这是为什么？
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