Arduino和处理代码错误"disabling_serialevent()"；

问题描述

我在打开和关闭处理应用程序时遇到以下错误，有时效果很好.

I am facing the following error in Processing application off and on, sometimes it works perfectly.

空

以下是代码:

Arduino的:

    void setup() {
  Serial.begin(9600);
}

void loop() {
  int sensorValue1 = analogRead(A0);
  int sensorValue2 = analogRead(A1);
  Serial.print(sensorValue1);
  Serial.write("-");
  Serial.println(sensorValue2);
  delay(1);
}

正在处理:

 import processing.serial.*;
 
 Serial myPort;        // The serial port
 void setup () {
 size(1043, 102);
 background(255);
 myPort = new Serial(this, Serial.list()[1], 9600);
 println(Serial.list());
 myPort.bufferUntil('\n');
 }
 
 void draw () {
 // everything happens in the serialEvent()
 }
 
 void serialEvent (Serial myPort) {
 background(255);
 String inString = myPort.readStringUntil('\n');
 if (inString != null) {
 inString = trim(inString);
// String inByte = inString;
 int[] inStr = int(split(inString,'-'));
 println(inStr);

fill(0);
rect(10,2,inStr[0],46);

rect(10,52,inStr[1],46);

fill(255);
rect(400,14,245,21); 

fill(0);
textAlign(CENTER);
textSize(14);
text("1st value: "+inStr[0]+" 2nd value: "+inStr[1],width/2,30);
 }
 }

当我删除以下代码部分时，该应用程序运行正常.

When I remove following part of code, the application works fine.

fill(0);
rect(10,2,inStr[0],46);

rect(10,52,inStr[1],46);

fill(255);
rect(400,14,245,21); 

fill(0);
textAlign(CENTER);
textSize(14);
text("1st value: "+inStr[0]+" 2nd value: "+inStr[1],width/2,30);

我正在使用Win7，正在处理ver2.2.1& Arduino ver1.0.5-r2.

I am using Win7, Processing ver2.2.1 & Arduino ver1.0.5-r2.

我是所有串行通信人员的新手.

I'm new to all serial communication stuff..

推荐答案

您必须将您的serialEvent方法主体包含在try-catch中:

You have to surround your serialEvent method body in try-catch:

void serialEvent (Serial myPort) {

  try {
    ...
    your code
    ...
  }
  catch(RuntimeException e) {
    e.printStackTrace();
  }

}

您的serialEvent实现中可能会引发异常.

There is probably an exception thrown from your serialEvent implementation.

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