下面是读写串口的程序。
工程目录为：
Java主程序代码：
package com.android.zxw;
import java.util.Arrays;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.Handler;
import android.util.Xml.Encoding;
import android.view.KeyEvent;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import com.friendlyarm.AndroidSDK.HardwareControler;
public class Zxw2Activity extends Activity {
private TextView fdText;
private EditText senddata;
private EditText data1;
private Button openSerial;
private Button closeSerial;
private Button sendSerial;
private int fd;
Handler handler=new Handler();
Handler sendHandler=new Handler();
Runnable runnable=new Runnable(){
@Override
public void run()
{
ReadSerial();
//handler.postDelayed(this, 3000);
handler.post(this);
}
};
Runnable sendrunnable=new Runnable(){
@Override
public void run()
{
SendSerial();
//handler.postDelayed(this, 3000);
handler.post(this);
}
};
/**
*接收函数
*/
public void ReadSerial(){
//data1.setText(null);
//System.out.println(fd);
int m=HardwareControler.select(fd,2,20);
// System.out.println("a");
//System.out.println(m);
if(m==1)
{
byte[] buf =new byte[10];
try {
Thread.sleep(90);
} catch(InterruptedException e) {
//TODO Auto-generated catch block
e.printStackTrace();
}
int n=HardwareControler.read(fd, buf, buf.length);
// System.out.println("b");
//System.out.println(n);
System.out.println(Arrays.toString(buf));
data1.setText(data1.getText() + " " + Arrays.toString(buf));
}
}
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
fdText=(TextView) findViewById(R.id.fdText);
senddata=(EditText) findViewById(R.id.data);
data1=(EditText) findViewById(R.id.data1);
openSerial = (Button) findViewById(R.id.openSerial);
closeSerial = (Button) findViewById(R.id.closeSerial);
sendSerial = (Button) findViewById(R.id.sendSerial);
/**
* 软件运行就直接打开串口
*/
//TODO Auto-generated method stub
fd=HardwareControler.openSerialPort("/dev/s3c2410_serial3",115200,8,1);
fdText.setText(Integer.toString(fd));
handler.post(runnable);
sendHandler.post(sendrunnable);
// System.out.println("启动串口线程");
fdText.setText(fdText.getText() + "打开线程");
closeSerial.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v) {
//TODO Auto-generated method stub
handler.removeCallbacks(runnable);
HardwareControler.close(fd);
fdText.setText("关闭串口");
}
});
/**
* 发送按钮
*/
sendSerial.setOnClickListener(new Button.OnClickListener(){
public void onClick(View v){
SendSerial();
}
});
}
/**
* 发送函数，直接调用友善之臂提供的函数接口
* 我这里将(EditText)senddata中的内容变字符串再变bytes[]
* 接收到的结果有点不对
*/
public void SendSerial(){
HardwareControler.write(fd,senddata.gettext().toString().getBytes());
}
}
接收发送正常。