Odd Error

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Odd Error

Postby wirawan1988 » Wed Aug 22, 2007 5:05 am

Hello,
I am currently trying to program the RCX and when I download my code and have it run it make an odd noise and show in the LCD 0074 then the walking man then a 1. The ^also shows up underneath Sensor port 2.
I am not sure whats wrong here is my code.
Code: Select all
import josx.platform.rcx.*;
import josx.robotics.*;
public class Main
{
   static String [][] mazeMap=new String[16][16];//the model for the maze with the given obstacles
   static int [][] mazeMetrics=new int [16][16];//Create the model of the map with the given metrics
   
   /**
    *
    * @param args
    */
   public static void main(String []args)throws InterruptedException
   {
      
      ButtonExit be=new ButtonExit();
      Button.RUN.addButtonListener(be);
      Sensor.S1.activate();
      Sensor.S1.setTypeAndMode(1,0x00);
      while(!be.isrunpressed)
      {   
         TextLCD.print(""+Sensor.S1.readRawValue());
         LCD.refresh();
      }
      //end of main method
   }
   public static void navigation()
   {
      Sensor.S1.setTypeAndMode(1, 0x00);
      //ascertain our starting position by looking at the wall configuration
      while(true)//while we haven't reach our goal
      {
         update(0,0);//update the current cell that we are in
         //look into the mazeMetric array to find the lowest metric
         //put move into a stack
         //turn and move to that location
         
      }
   }
   /**
    * Check the sensor to see where are the walls are and will return the char representation
    * NSEW
    * @return the char representation of the obstacles
    */
   public static String sensorCheck()
   {
      /*
       * get the raw from the sensor port
       * check first to see if sensor 1 is active
       * then drill down the search appending the values of direction
       */
      String result="";
      Sensor.S1.activate();
      if(Sensor.S1.readRawValue()<990&&Sensor.S1.readRawValue()>960)
      {
         result="S";
      }
      if(Sensor.S1.readRawValue()<930&&Sensor.S1.readRawValue()>900)
      {
         result="S";
      }
      if(Sensor.S1.readRawValue()<900)
      {
         result="NS";
      }
      Sensor.S3.activate();
      if(Sensor.S3.readRawValue()<850&&Sensor.S3.readRawValue()>800)
      {
         result+="E";
      }
      if(Sensor.S3.readRawValue()<750&&Sensor.S3.readRawValue()>650)
      {
         result+="W";
      }
      if(Sensor.S3.readRawValue()<625)
      {
         result+="EW";
      }
      TextLCD.print(result);
      return result;
   }
   /**
    * For the given x and y location of the maze it calculate the metric of that cell
    * the metric is based upon the distance to the goal in the center of the maze
    * @param x the x coordinate of the cell
    * @param y the y coordinate of the cell
    * @return the metric for the particular cell
    */
   public static int calcMetrics(int x, int y)
   {
      return 0;
   }
   /**
    * Method to update the maze models
    */
   public static void update(int x, int y)
   {
      mazeMap[x][y]=sensorCheck();
      for(int x1=0;x<16;x++)
      {
         for(int y1=0;y<16;y++)
         {
            calcMetrics(x1,y1);
         }
      }
   }
}
class ButtonExit implements ButtonListener
{
   public boolean isrunpressed=false;
   public void buttonPressed(Button b)
   {
       if(b.equals(Button.RUN))
           isrunpressed=true;
   }
   public void buttonReleased(Button b)
   {
   }
}

Any help would be appreciated.
Thank You in advance.

--William Soetanto
wirawan1988
New User
 
Posts: 2
Joined: Wed Aug 22, 2007 5:01 am

Postby jvance » Wed Sep 12, 2007 12:57 am

Hi, I looked up RCX 0074 on google and i found a page in the lejos tutorial that described what you are experiencing as an exception. I did not read the whole page so I am not completely sure, but that is what I gathered. Here is the google search
http://www.google.com/search?sourceid=n ... q=RCX+0074

The first listing is what I found.
Hope this helps.
V
jvance
New User
 
Posts: 22
Joined: Sun Aug 12, 2007 2:22 am


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