public void programBlock() {
if (!mProgramming) return;
if (iBlocks < nBlocks) {
mProgramming = true;
// Prepare block
mOadBuffer[0] = Conversion.loUint16((short) iBlocks);
mOadBuffer[1] = Conversion.hiUint16((short) iBlocks);
System.arraycopy(mFileBuffer, iBytes, mOadBuffer, 2, OAD_BLOCK_SIZE);
// Send block
mCharBlock.setValue(mOadBuffer);
boolean success = mBtLeService.writeCharacteristicNonBlock(deviceAddress, mCharBlock);
Log.d(TAG, "Sent block : " + iBlocks + " to [" + deviceAddress + "]");
if (success) {
// Update stats
packetsSent++;
iBlocks++;
iBytes += OAD_BLOCK_SIZE;
if (isComplete()) {
Log.d(TAG, "OAD Completed on [" + deviceAddress + "]");
}
} else {
mProgramming = false;
Log.e(TAG, "GATT writeCharacteristic failed on [" + deviceAddress + "]");
}
} else {
mProgramming = false;
}
if (!mProgramming) {
stopProgramming();
}
}
/**
* Make sure connection interval is long enough for OAD (Android default connection interval is
* 7.5 ms)
*/
private void setConnectionParameters() {
byte[] value = {
Conversion.loUint16(OAD_CONN_INTERVAL),
Conversion.hiUint16(OAD_CONN_INTERVAL),
Conversion.loUint16(OAD_CONN_INTERVAL),
Conversion.hiUint16(OAD_CONN_INTERVAL),
0,
0,
Conversion.loUint16(OAD_SUPERVISION_TIMEOUT),
Conversion.hiUint16(OAD_SUPERVISION_TIMEOUT)
};
mCharConnReq.setValue(value);
mBtLeService.writeCharacteristic(deviceAddress, mCharConnReq);
}
