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[已解决] X-Board使用问题 |
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X-Board继电器板，https://www.dfrobot.com.cn/goods-686.html 运行样例程序时串口监视器上没有任何输出，不知何故？ 为了测试，写了一段简单的程序，读模拟口的值然后在串口打印，不启用网络功能，一起正常，如果启用网络功能，立刻死机。 是不是Ethernet和串口冲突？但是把串口的输出全部取消，用mac地址加固定ip地址的方式启用Ethernet，在浏览器访问给X-Board设定的ip地址，提示无法访问。 请用过X-borad（继电器板）的大侠给点指导。 |
本帖最后由 lilin16821 于 2014-7-16 15:13 编辑 mickey 发表于 2014-7-16 14:29 谢谢回复，你提到的代码如下： while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo only } 注释掉后结果是一样的。 这段代码在自己写的测试程序中用或不用，似乎对串口通信的影响不大，目前看还是网络功能问题。 DFROBOT的人能用X-Board板试试吗？ |
lilin16821 发表于 2014-7-16 15:08 这个板子没有人用过吗？ |
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谢谢回复，一直在忙，没有顾上测试，今天又认真测试了一下，结果仍然是失败，总结如下： 一、采用Ethernet.begin(mac)，也就是试图DHCP取得ip地址，如果连接DHCP服务器，系统将死机，串口没有输出 二、采用Ethernet.begin(mac)，仍然用DHCP取得ip地址，如果没有DHCP服务器，串口输出提示“Failed to configure Ethernet using DHCP”，这个应该是正常的。 三、采用Ethernet.begin(mac, ip)，自设置ip地址的话，然后立刻打印ip地址，结果如下：  这就是最奇怪的地方了，IP地址被设置成了255.255.255.255。 代码如下： /* DFRobot X-board V2 Sample Code A simple web server with DHPC capbabilty. 1)Get IP address from router automatically 2)Show the value of the analog input pins created 28 Sep 2012 by Ricky */ #include <SPI.h> #include <Ethernet.h> EthernetServer server(80); // 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, 0xAE, 0x0F, 0xFE, 0xED }; // Initialize the Ethernet server library // with the IP address and port you want to use // (port 80 is default for HTTP): //IPAddress ip(192,168,1,173); byte ip[] = {192, 168, 0, 163 }; 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: /* if (Ethernet.begin(mac) == 0) { Serial.println("Failed to configure Ethernet using DHCP"); // no point in carrying on, so do nothing forevermore: for(;;) ; }*/ Ethernet.begin(mac, ip); // print your local IP address: Serial.print("My IP address: "); for (byte thisByte = 0; thisByte < 4; thisByte++) { // print the value of each byte of the IP address: Serial.print(Ethernet.localIP()[thisByte], DEC); Serial.print("."); } Serial.println(); // start the Ethernet connection and the server: 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("Connnection: close"); client.println(); client.println("<!DOCTYPE HTML>"); client.println("<html>"); // add a meta refresh tag, so the browser pulls again every 5 seconds: client.println("<meta http-equiv=\"refresh\" content=\"5\">"); client.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"http://www.dfrobot.com/ihome/stylesheet/stylesheet.css\" />"); client.println("<center> <a href=\"http://www.dfrobot.com\"><img src=\"http://alturl.com/qf6vz\"></a> </center> "); client.println("<br />"); client.println("<div>"); // 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 />"); } // output the value of each digital input pin for (int digitalChannel = 2; digitalChannel < 10; digitalChannel++) { int sensorReading = digitalRead(digitalChannel); if(digitalChannel!=7&&digitalChannel!=8) { client.print("Digital input "); client.print(digitalChannel); client.print(" is "); client.print(sensorReading); client.println("<br />"); } else { client.print("Relay "); client.print(digitalChannel); client.print(" is "); client.print(sensorReading); client.println("<br />"); } } client.println("</div>"); 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"); } } 测试无果后，到Arduino.cc上去看Ethernet.h的说明，在Ethernet.begin()说明中看到这么一句： “mac: the MAC (Media access control) address for the device (array of 6 bytes). this is the Ethernet hardware address of your shield. Newer Arduino Ethernet Shields include a sticker with the device's MAC address. For older shields, choose your own.” 于是猜测，是不是我的板子是新的，MAC地址要用真实地址，不能自己设置？但是我已经找不到“sticker”了，不知道地址是什么？ 然后，不明白的事情出现了，我仔细观察板子，发现5100芯片的引脚上有几处焊接粘连点，附照片如下,请DFRobot的人帮忙判断一下，图片中红色圈内的焊接粘连是正常的还是不正常的，5100下面的Atmel焊接就没有这种粘连。  |
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我认为网络没有问题，其他设备都工作的很好（网络上有笔记本、台式机、手机、iPad等是DHCP设备，AppleTV、NSA等固定IP设备）。我用5200板子（从UNO上扩展出来的）也是没有问题的。 测试了你提供的代码，我在串口初始化成功后打印了一句“Serial is ok!”，然后继续初始化网口，结果显示： My IP address: 0.0.0.0. server is at 0.0.0.0  如果采用DHCP，输出了“Serial is ok!”后，就没有任何输出了。  我觉得即便是网络问题，设置固定IP也是应该可以设置的，有IP冲突等网络问题也应该只是影响通讯，但是现在是设置固定IP的时候会设置成0.0.0.0，而DHCP又没有任何响应。 有点要崩溃的感觉。用这块板子是要搭建一个很重要的应用原型测试，请尽快提供帮助，让我能继续下去。 |
本帖最后由 lilin16821 于 2014-8-1 01:28 编辑 Phoebe 发表于 2014-7-31 14:55 就是上面你们提供的代码，我只是在while循环后面加了两句： Serial.println("Serial is ok!"); delay(1000); 其实不加也是一样的，我加了只是想测试串口是否设置正常。 /* DFRobot X-board V2 Sample Code A simple web server with DHPC capbabilty. 1)Get IP address from router automatically 2)Show the value of the analog input pins created 28 Sep 2012 by Ricky */ #include <SPI.h> #include <Ethernet.h> //EthernetServer server(80); // Enter a MAC address and IP address for your controller below. // The IP address will be dependent on your local network: byte mac[] = { 0xDE, 0xCD, 0xAE, 0x0F, 0xFE, 0xED }; // Initialize the Ethernet server library // with the IP address and port you want to use // (port 80 is default for HTTP): //IPAddress //byte ip[] = {192, 168, 0, 169 }; IPAddress ip(192,168,1, 210); //byte ip[] = {192, 168, 0, 167 }; void setup() { delay(3000); // for debugging, a little delay makes things easier, for use, delete delay. // Open serial communications and wait for port to open: Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo only } Serial.println("Serial is ok!"); delay(1000); // start the Ethernet connection: /* if (Ethernet.begin(mac) == 0) { Serial.println("Failed to configure Ethernet using DHCP"); // no point in carrying on, so do nothing forevermore: for(;;) ; } */ Ethernet.begin(mac,ip); // print your local IP address: Serial.print("My IP address: "); for (byte thisByte = 0; thisByte < 4; thisByte++) { // print the value of each byte of the IP address: Serial.print(Ethernet.localIP()[thisByte], DEC); Serial.print("."); } Serial.println(); // start the Ethernet connection and the server: //server.begin(); Serial.print("server is at "); Serial.println(Ethernet.localIP()); } void loop() { } |
Phoebe 发表于 2014-8-1 18:35 终于，终于，谢谢，谢谢！ |
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