Help with NI-DAQ Example Code

Hi. I've just started working with the NI ISB-6211. This is the first ACD i've ever used, so i'm farily new to this. I have quite a bit of knowledge in programming. After searching through the installation files I found some example C Code that runs in the command prompt. I've modified one quite a bit to get it to do what I want. My question is...
Now, i'm having some issues. I'm trying to get it to print a voltage reading into the command prompt. I've hooked it all up and i've used labview to make sure everything is working as it should (Which it does!). When I compile the C program and run it, instead of returning a voltage it just aquires points, and I really have no idea what these "points" are.
Here is the main part of the example code:
DAQmxErrChk (DAQmxCreateTask("",&taskHandle));
DAQmxErrChk (DAQmxCreateAIVoltageChan(taskHandle,"Dev1/ai0","",DAQmx_Val_Cfg_Default,1.0,10.0,DAQmx_Val_Volts,NULL));
DAQmxErrChk (DAQmxCfgSampClkTiming(taskHandle,"",10000.0,DAQmx_Val_Rising,DAQmx_Val_FiniteSamps,1000));
// DAQmx Start Code
DAQmxErrChk (DAQmxStartTask(taskHandle));
// DAQmx Read Code
DAQmxErrChk (DAQmxReadAnalogF64(taskHandle,1000,10.0,DAQmx_Val_GroupByChannel,data,1000,&read,NULL));
printf("Acquired %d points\n",read);
Error:
And then it just moves down to the exit clause. Is there any documentation anywhere which tells me which DAQ command I need to use to print a continuously updating voltage read out? (Just as a decimal, like 5.21V for example).
Thank you all
John
Solved!
Go to Solution.

John,
The data acquired by DAQmx is written into the array called 'data'. The number of points DAQmx wrote into this array is stored in the variable 'read' which was passed in by reference. To print the values returned, you'd need to loop over the 'data' array, and print each value. See this help topic for an explanation of DAQmxReadAnalogF64.
Dan

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          File file = new File("d:\\temp.txt");
          FlatReader flat = new FlatReader();
          try {
          flat.getText(file, "UTF-8");
           catch(IOException err)
}Everything works fine but if you have a file with three lines for example:
Line1
Line2
Line3
then my program will return only Line1 and Line2
I know that I can use something like
while (str=inputStream.readLine()!=null);
instead of do while...but that does not work for me because the whole idea is that I should get the correct value in my str variable when I return it in the method, i.e. return str and str should have
Line1
Line2
Line3
Could you please help me to figure it out?
Thanks!

do {
str+=inputStream.readLine(); // Here you're reading a line
while (inputStream.readLine()!=null); // And here you're reading another one (and thus skipping it)

Need urgent help with LayerManager (easy example)

Im trying to get a scrolling effect by moving the view window.
THE PROBLEM IS that if I move the view vindow the Sprite (spriteTest) is displayed at the new position AND still at the old position. I don't want it to be displayed on the old position. So if I move it a pixel every 5 ms I get a trail of the Sprite. Why does it happen??? (clueless)
Here is the code...
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.lcdui.game.LayerManager;
import javax.microedition.lcdui.game.Sprite;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
public class Game extends GameCanvas implements Runnable
    private Thread t; //the thread running the game
    private Midlet midlet; //the midlet
    private int DISP_WIDTH; //the width of the display
    private int DISP_HEIGHT; //the height of the display
    private int xpositionView, ypositionView; //the x and y coordinates of the view window (used for scrolling)
    private LayerManager world; //the layermanager in which all sprites are added
    private Sprite spriteTest; //a Sprite with an image looking like a goomba from super mario
    /** Creates a new instance of Game */
    public Game(Midlet midlet)
       super(true);
       this.midlet = midlet;
       xpositionView = 1;
       ypositionView = 1;
       DISP_WIDTH = getWidth();
       DISP_HEIGHT = getHeight();
       world = new LayerManager();
       world.setViewWindow(xpositionView, ypositionView, DISP_WIDTH, DISP_HEIGHT);
       try
            spriteTest = new Sprite(Image.createImage("/images/goomba.png")); //creates the sprite containing an image (no frames only 1 picture)
       catch(Exception e)
           System.out.println("Couldn't load sprite image!");
       spriteTest.setPosition(190, 30); //sets the position of the sprite
       world.append(spriteTest);      //appends the sprite to the LayerManager
    /* The game loop */
    public void run()
        Graphics g = getGraphics();
        while(true)
            move();
            render(g);
            try
                t.sleep(5); //sleeps for 5 ms
            catch (InterruptedException ie)
    /* Moves the view window to the right*/
    private void move()
        xpositionView = xpositionView + 1; //update position 1 pixel to the right
        world.setViewWindow(xpositionView, ypositionView, DISP_WIDTH, DISP_HEIGHT); //sets the view window to the new location
    /* Render the graphics. !!!!PROBLEM!!! */
    public void render(Graphics g)
        world.paint(g, 0, 0); //paints out the LayerManager
        flushGraphics();
   /* Starts the thread */
    public void start()
        t = new Thread(this);
        t.start();
}

I already do sleep the Thread 5 milliseconds.
I've uploaded pictures and other to make you understand the problem:
http://www.freewebs.com/scrolling/picture2.jpg
Here is the entire project (its only 122 kb small) if you can help me I would love you forever :) When you run this you will understand the problem.
http://www.freewebs.com/scrolling/ScrollingSimple.rar
Im desperate for help :(

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