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POAndroid - IOIO board , simple UART code issue
 

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    <p>I am using the IOIO board given by sparkfun. While trying to test UART , I tied the RX and TX of the IOIO board and wanted to send one byte from the phone and receive same byte on the Phone ans show it in a textbox. When I run the following code , nothing changes in the UI. I think I am missing a fundamental thing. Any suggestions / ideas ?</p> <pre><code>package ioio.examples.hello; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import ioio.examples.hello.R; import ioio.lib.api.DigitalOutput; import ioio.lib.api.IOIO; import ioio.lib.api.IOIOFactory; import ioio.lib.api.exception.ConnectionLostException; import ioio.lib.api.exception.IncompatibilityException; import ioio.lib.util.AbstractIOIOActivity; import android.os.Bundle; import android.widget.ToggleButton; import android.widget.TextView; import ioio.lib.api.Uart; /** * This is the main activity of the HelloIOIO example application. * * It displays a toggle button on the screen, which enables control of the * on-board LED. This example shows a very simple usage of the IOIO, by using * the {@link AbstractIOIOActivity} class. For a more advanced use case, see the * HelloIOIOPower example. */ public class MainActivity extends AbstractIOIOActivity { private ToggleButton togglebutton; private TextView textView; /** * Called when the activity is first created. Here we normally initialize * our GUI. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); textView = (TextView) findViewById(R.id.editText1); togglebutton = (ToggleButton) findViewById(R.id.button); } /** * This is the thread on which all the IOIO activity happens. It will be run * every time the application is resumed and aborted when it is paused. The * method setup() will be called right after a connection with the IOIO has * been established (which might happen several times!). Then, loop() will * be called repetitively until the IOIO gets disconnected. */ class IOIOThread extends AbstractIOIOActivity.IOIOThread { /** The on-board LED. */ private Uart uart; private InputStream in; private OutputStream out; private byte receivedData[] = new byte[10]; private int offset = 0; private Byte b; protected IOIO ioio_; /** * Called every time a connection with IOIO has been established. * Typically used to open pins. * * @throws ConnectionLostException * When IOIO connection is lost. * * @see ioio.lib.util.AbstractIOIOActivity.IOIOThread#setup() */ @Override protected void setup() throws ConnectionLostException { // led_ = ioio_.openDigitalOutput(0, true); ioio_ = IOIOFactory.create(); try { ioio_.waitForConnect(); } catch (IncompatibilityException e) { // TODO Auto-generated catch block e.printStackTrace(); } uart = ioio_.openUart(3, 4, 115200, Uart.Parity.NONE, Uart.StopBits.ONE); in = uart.getInputStream(); out = uart.getOutputStream(); } /** * Called repetitively while the IOIO is connected. * * @throws ConnectionLostException * When IOIO connection is lost. * * * @see ioio.lib.util.AbstractIOIOActivity.IOIOThread#loop() */ @Override protected void loop() throws ConnectionLostException { offset = 0; while (togglebutton.isChecked()) { try { out.write(65); try { Thread.sleep(100); } catch (InterruptedException e) { // Ignore } } catch (IOException e) { // TODO ??? } try { in.read(receivedData, 0, 1); try { Thread.sleep(100); } catch (InterruptedException e) { // Ignore } } catch (IOException e) { // TODO ??? } textView.setText(Byte.toString(receivedData[0])); } } } /** * A method to create our IOIO thread. * * @see ioio.lib.util.AbstractIOIOActivity#createIOIOThread() */ @Override protected AbstractIOIOActivity.IOIOThread createIOIOThread() { return new IOIOThread(); } </code></pre> <p>}</p>
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