public static bool GetBluetoothState(UART uart)
{
ushort serviceCode = (ushort)TegamServiceCode_t.TEGAM_BLUETOOTH_GET_REQ;
ushort valueSize = 0;
byte[] cmdbuf = new byte[10];
byte[] cobsbuf = new byte[12];
cmdbuf[0] = CMD_MARK_START;
cmdbuf[1] = CMD_MARK_HEADER & 0x00FF;
cmdbuf[2] = (CMD_MARK_HEADER & 0xFF00) >> 8;
cmdbuf[3] = CMD_VERSION_CODE & 0x00FF;
cmdbuf[4] = (CMD_VERSION_CODE & 0xFF00) >> 8;
cmdbuf[5] = (byte)(serviceCode & 0x00FF);
cmdbuf[6] = (byte)((serviceCode & 0xFF00) >> 8);
cmdbuf[7] = (byte)(valueSize & 0x00FF);
cmdbuf[8] = (byte)((valueSize & 0xFF00) >> 8);
cmdbuf[9] = CMD_MARK_END;
COBS.Encode(cmdbuf, 10, ref cobsbuf);
cobsbuf[11] = 0;
if (WRITE)
{
uart.Write(cobsbuf, 12);
}
return(true);
}
public static bool SendSerialNumber(UART uart, byte[] value)
{
ushort serviceCode = (ushort)TegamServiceCode_t.TEGAM_SERIAL_NUMBER_SET_REQ;
ushort valueSize = 10;
byte[] cmdbuf = new byte[20];
byte[] cobsbuf = new byte[22];
cmdbuf[0] = CMD_MARK_START;
cmdbuf[1] = CMD_MARK_HEADER & 0x00FF;
cmdbuf[2] = (CMD_MARK_HEADER & 0xFF00) >> 8;
cmdbuf[3] = CMD_VERSION_CODE & 0x00FF;
cmdbuf[4] = (CMD_VERSION_CODE & 0xFF00) >> 8;
cmdbuf[5] = (byte)(serviceCode & 0x00FF);
cmdbuf[6] = (byte)((serviceCode & 0xFF00) >> 8);
cmdbuf[7] = (byte)(valueSize & 0x00FF);
cmdbuf[8] = (byte)((valueSize & 0xFF00) >> 8);
cmdbuf[9] = value[0];
cmdbuf[10] = value[1];
cmdbuf[11] = value[2];
cmdbuf[12] = value[3];
cmdbuf[13] = value[4];
cmdbuf[14] = value[5];
cmdbuf[15] = value[6];
cmdbuf[16] = value[7];
cmdbuf[17] = value[8];
cmdbuf[18] = value[9];
cmdbuf[19] = CMD_MARK_END;
COBS.Encode(cmdbuf, 20, ref cobsbuf);
cobsbuf[21] = 0;
if (WRITE)
{
uart.Write(cobsbuf, 22);
}
if (VERIFY)
{
System.Threading.Thread.Sleep(100);
char[] readBuf = uart.ReadBuffer();
byte[] decodedBuf = new byte[11];
// decoded what was read from UART
COBS.Decode(Encoding.Default.GetBytes(readBuf), 11, ref decodedBuf);
// reset the UART read buffer after obtaining read data
uart.ResetReadBuffer();
// ensure ACK command is valid
return(ValidateACK(decodedBuf, TegamServiceCode_t.TEGAM_SERIAL_NUMBER_SET_ACK));
}
else
{
return(true);
}
}
private void Read()
{
while (_continue)
{
try
{
int bytesToRead = _serialPort.BytesToRead;
if (bytesToRead > 0)
{
bytesToRead = bytesToRead + _readBytes < UART_READ_BUFFER_SIZE ? bytesToRead : UART_READ_BUFFER_SIZE - _readBytes;
_serialPort.Read(_readBuffer, _readBytes, bytesToRead);
_readBytes += bytesToRead;
if (_readBuffer[_readBytes - 1] == '\r')
{
CommandHost.TegamServiceCode_t serviceCode;
byte[] data;
byte[] decodedBuf = new byte[_readBytes + 1];
// decoded what was read from UART
COBS.Decode(Encoding.Default.GetBytes(_readBuffer), (ushort)(_readBytes + 1), ref decodedBuf);
if (CommandHost.Parse(decodedBuf, out serviceCode, out data))
{
switch (serviceCode)
{
case CommandHost.TegamServiceCode_t.TEGAM_ERROR:
MessageBox.Show("Received an error from Tegam 919!", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
break;
case CommandHost.TegamServiceCode_t.TEGAM_BLUETOOTH_GET_ACK:
MessageBox.Show("Current Bluetooth state: " + data[0]);
break;
case CommandHost.TegamServiceCode_t.TEGAM_MODEL_NUMBER_SET_ACK:
//MessageBox.Show("Received ACK for model number set.");
break;
case CommandHost.TegamServiceCode_t.TEGAM_DATA_PACKET_UPD_ACK:
//MessageBox.Show("Received ACK for data packet update.");
break;
case CommandHost.TegamServiceCode_t.TEGAM_SEND_NEXT_READING_SET_REQ:
MessageBox.Show("Received request to send next reading. Value: " + data[0]);
break;
case CommandHost.TegamServiceCode_t.TEGAM_CHANNEL_READINGS_SET_ACK:
//MessageBox.Show("Received ACK for channel readings set.");
break;
}
}
ResetReadBuffer();
}
}
}
catch (TimeoutException) { }
}
}
