mpv 6050 over i2c to ioio. provides slow data. heres my code.
class Looper extends BaseIOIOLooper {
/** The on-board LED. */
private DigitalOutput led_;
/**
* Called every time a connection with IOIO has been established.
* Typically used to open pins.
*
* @throws ConnectionLostException
* When IOIO connection is lost.
* @throws InterruptedException
*
* @see ioio.lib.util.AbstractIOIOActivity.IOIOThread#setup()
*/
@Override
public void setup() throws ConnectionLostException, InterruptedException {
led_ = ioio_.openDigitalOutput(0, true);
// Create the i2c port
twi = ioio_.openTwiMaster(0, TwiMaster.Rate.RATE_1MHz, false);
///////////////////////
//Get the whoamI register value to check if the sensor is connected
byte[] request = new byte[] {0x75};
byte[] response = new byte[1];
//try {
twi.writeRead(0x68, false, request, request.length, response,
response.length);
//} catch (InterruptedException e1) {
//TODO Auto-generated catch block
//e1.printStackTrace();
//}
/*
//Make the power control bit high
byte[] request1 = new byte[] {0x6B,0x00};
//try {
twi.writeRead(0x68, false, request1, request1.length, null,0);
//} catch (InterruptedException e1) {
//TODO Auto-generated catch block
//e1.printStackTrace();
//}
//Set the range of accel
request1[0] = 0x1C;
request1[1] = 0x10;
try {
twi.writeRead(0x68, false, request1, request1.length, null,0);
} catch (InterruptedException e1) {
//TODO Auto-generated catch block
e1.printStackTrace();
}
//////////////////////////////////////////////////////
*/
}
/**
* Called repetitively while the IOIO is connected.
*
* @throws ConnectionLostException
* When IOIO connection is lost.
*
* @see ioio.lib.util.AbstractIOIOActivity.IOIOThread#loop()
*/
@Override
public void loop() throws ConnectionLostException {
//xhigh in request1 and response 1
//int tempxH=0;
request[0] = 0x3B;
try {
twi.writeRead(0x68, false, request, request.length, response,
response.length);
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
tempxH=((int)(response[0]));
//xlow in request1 and response 1
request[0] = 0x3C;
try {
twi.writeRead(0x68, false, request, request.length, response,
response.length);
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
tempxH = (tempxH*255) + response[0];
tempxH=tempxH*(0.00024);
//yhigh in request 2
//int tempyH=0;
request[0] = 0x3D;
try {
twi.writeRead(0x68, false, request, request.length, response,
response.length);
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
tempyH=((int)(response[0]));
//ylow in request1 and response 1
request[0] = 0x3E;
try {
twi.writeRead(0x68, false, request, request.length, response,
response.length);
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
tempyH = (tempyH*255) + response[0];
tempyH=tempyH*(0.00024);
//zhigh in request 2
//int tempzH=0;
request[0] = 0x3F;
try {
twi.writeRead(0x68, false, request, request.length, response,
response.length);
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
tempzH=((int)(response[0]));
//zlow in request1 and response 1
request[0] = 0x40;
try {
twi.writeRead(0x68, false, request, request.length, response,
response.length);
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
tempzH = (tempzH*255) + response[0];
tempzH=tempzH*(0.00024);
str1 = Double.toString(tempxH);
str2 = Double.toString(tempyH);
str3 = Double.toString(tempzH);
//xAxisText.setText("Hello");
updateTextView(xAxisText,str1);
updateTextView(yAxisText,str2);
updateTextView(zAxisText,str3);
}
}
* A method to create our IOIO thread.
private void updateTextView(final TextView textView, final String text) {
runOnUiThread(new Runnable() {
@Override
public void run() {
textView.setText(text);
}
});
}
protected IOIOLooper createIOIOLooper() {
return new Looper();
}
}
i tried twimaster rate ie 400khz,100khz. but no use.
i tried running app on usb mode without using bluetooth dongle. im getting
1000 values/ 3 sec which is slow for i2c connection when using usb mode.
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