seriallcd.java

Is a Application Demo (an example) of how to use the package LCD in order to make an application sta

package etaai.lcd.comm;

import etaai.comunicatii.comm.Serial;
import etaai.lcd.LCDPort;
import javax.comm.*;
import java.io.IOException;
import etaai.lcd.comm.SerialLCDException;

/**
 * Title:        Serial LCD
 * Description:  Comnada display lcd pe seriala
 * Copyright:    Copyright (c) 2001
 * Company:      ETA AI
 * @author Mircea Pop
 * @version 1.0
 */

public class SerialLCD extends Serial implements LCDPort{

  /**
   * Clasa SerialLCD implementeaza comunicarea cu afisajul LCD Cristalfontz
   *
   * @param String portName Numele portului serial la care este legat LCD-ul
   * @param int baudRate Rata de transfer
   * @param int bufferSize Dimensiunea stivei de I/O
   * @throws PortInUseException Portul este folosit de alata aplicatie
   * @throws NoSuchPortException Numele portului nu e valid
   * @throws IOException Eroare setare parametrii
   * @thrwos UnsupportedCommOperationException eroare setare parametrii(parametrii invalizi)
   * @throws SerialLCDException Eroare LCD
   */
  public SerialLCD(String portName, int baudRate, int bufferSize) throws PortInUseException,NoSuchPortException,IOException,UnsupportedCommOperationException,SerialLCDException
  {
    super(portName, bufferSize);
    initPortSerial(baudRate);
  }

  /**
   * Trimitere la LCD comenzi
   * @param String lcdData Datele ce se trimit la lcd
   * @throws SerialLCDException Daca nu s-a reusit trimiterea datelor
   */
  public void sendLCDData(String lcdData) throws SerialLCDException
  {
    try
    {
      sendSerialData(lcdData);
    }
    catch(Exception e) {throw new SerialLCDException("SerialLCD : " + e);}
  }

  /**
   * Trimitere la LCD comenzi
   * @param int lcdData Datele ce se trimit la lcd
   * @throws SerialLCDException Daca nu s-a reusit trimiterea datelor
   */
  public void sendLCDData(int lcdData) throws SerialLCDException
  {
    try
    {
      sendSerialData(lcdData);
    }
    catch(Exception e) {throw new SerialLCDException("SerialLCD : " + e);}
  }

  /**
   * Trimitere la LCD comenzi
   * @param byte[] lcdData Datele ce se trimit la lcd
   * @throws SerialLCDException Daca nu s-a reusit trimiterea datelor
   */
  public void sendLCDData(byte[] lcdData) throws SerialLCDException
  {
    try
    {
      sendSerialData(lcdData);
    }
    catch(Exception e) {throw new SerialLCDException("SerialLCD : " + e);}
  }

   /**
    * Initializare port serial pentru comunicarea cu afisajul
    *
    * @param int baudRate Rata de transfer
    * @throws SerialLCDException Daca nu s-a putut seta rata de transfer
    */
   private void initPortSerial(int baudRate) throws SerialLCDException
    {
      try
      {
        setSerialPortParam(baudRate , SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
        setFlowControl(0);

        /*Resetare display*/
        resetDisplay();
      }
      catch(Exception e){throw new SerialLCDException("initPortSerial : " + e.toString());}
    }

    /**
     * Resetare display
     */
    public void resetDisplay()
    {
      setDTR(false);
      setRTS(false);
      try{Thread.currentThread().sleep(1000);}catch(InterruptedException _){}
      setDTR(true);
      setRTS(true);
    }

    /**
     * Inchidere port serial
     */
    public void close()
    {
      close();
    }
}