private void ReadDataFromSerialPort()
{
lock (buffer)
{
int amount = serialPort.Read(staticBuffer, 0, MAXIMUM_BUFFER_SIZE);
// var bytesReceived = serialPort.Read(rxBuffer, 0, e.Count);
//Console.WriteLine($"Data amount: {amount}");
if (amount > 0)
{
for (var index = 0; index < amount; index++)
{
buffer += (char)staticBuffer[index];
}
}
var eolMarkerPosition = buffer.IndexOf(LINE_END);
while (eolMarkerPosition >= 0)
{
var line = buffer.Substring(0, eolMarkerPosition);
buffer = buffer.Substring(eolMarkerPosition + 2);
eolMarkerPosition = buffer.IndexOf(LINE_END);
// Console.WriteLine($"Line: {line}");
OnLineReceived?.Invoke(this, line);
}
}
}
/// <summary>
/// Reads all immediately available bytes, as binary data, in both the stream and the input buffer of the SerialPort
/// object.
/// </summary>
/// <returns>
/// System.Byte[]
/// </returns>
internal Byte[] ReadExistingBinary()
{
Int32 arraySize = _serial.BytesToRead;
Byte[] received = new Byte[arraySize];
_serial.Read(received, 0, arraySize);
return(received);
}
public static void Main()
{
Debug.WriteLine("devMobile.IoT.Rak811.ShieldSerial starting");
try
{
serialDevice = UartController.FromName(SerialPortId);
serialDevice.SetActiveSettings(new UartSetting()
{
BaudRate = 9600,
Parity = UartParity.None,
StopBits = UartStopBitCount.One,
Handshaking = UartHandshake.None,
DataBits = 8
});
serialDevice.Enable();
#if SERIAL_ASYNC_READ
serialDevice.DataReceived += SerialDevice_DataReceived;
#endif
while (true)
{
byte[] txBuffer = UTF8Encoding.UTF8.GetBytes(ATCommand);
int txByteCount = serialDevice.Write(txBuffer);
Debug.WriteLine($"TX: {txByteCount} bytes");
#if SERIAL_SYNC_READ
while (serialDevice.BytesToWrite > 0)
{
Debug.WriteLine($" BytesToWrite {serialDevice.BytesToWrite}");
Thread.Sleep(100);
}
int rxByteCount = serialDevice.BytesToRead;
if (rxByteCount > 0)
{
byte[] rxBuffer = new byte[rxByteCount];
serialDevice.Read(rxBuffer);
Debug.WriteLine($"RX sync:{rxByteCount} bytes read");
String response = UTF8Encoding.UTF8.GetString(rxBuffer);
Debug.WriteLine($"RX sync:{response}");
}
#endif
Thread.Sleep(20000);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
private void Sp_DataReceived(UartController sender, GHIElectronics.TinyCLR.Devices.Uart.DataReceivedEventArgs e)
{
var nb = _sp.BytesToRead;
var buf = new Byte[nb];
_sp.Read(buf, 0, nb);
DataReceivedEventHandler tempEvent = DataReceived;
tempEvent(this, new DataReceivedEventArgs(buf, nb));
}
private void Sp_DataReceived(UartController sender, DataReceivedEventArgs e)
{
var nb = _sp.BytesToRead;
var buf = new Byte[nb];
_sp.Read(buf, 0, nb);
SpeakUpEventHandler speakEvent = SpeakDetected;
speakEvent(this, new SpeakUpEventArgs(buf[0]));
}
private static void SerialDevice_DataReceived(UartController sender, DataReceivedEventArgs e)
{
byte[] rxBuffer = new byte[e.Count];
sender.Read(rxBuffer, 0, e.Count);
Debug.WriteLine($"RX Async:{e.Count} bytes read");
String response = UTF8Encoding.UTF8.GetString(rxBuffer);
Debug.WriteLine($"RX Async:{response}");
}
private void Gnss_DataReceived(UartController sender, DataReceivedEventArgs e)
{
var btr = _gnss.BytesToRead;
while (btr != 0)
{
var _buffer = new Byte[btr];
_gnss.Read(_buffer, 0, btr);
_sl.Add(_buffer);
_buffer = null;
btr = _gnss.BytesToRead;
}
}
private byte[] ReadExistingBinary()
{
int arraySize = _port.BytesToRead;
byte[] received = new byte[arraySize];
_port.Read(received, 0, arraySize);
if (_enableVerboseOutput)
{
Dump("RECV:", received);
}
return(received);
}
protected int ReadFrameSegment(int segmentLength, byte[] frameBuffer, int frameAddress)
{
RunCommand(Command.READ_FBUF,
new byte[] { 0x0, 0x0A,
(byte)((frameAddress >> 24) & 0xFF), (byte)((frameAddress >> 16) & 0xFF), (byte)((frameAddress >> 8) & 0xFF), (byte)(frameAddress & 0xFF),
(byte)((segmentLength >> 24) & 0xFF), (byte)((segmentLength >> 16) & 0xFF), (byte)((segmentLength >> 8) & 0xFF), (byte)(segmentLength & 0xFF),
(byte)((CameraDelayMilliSec >> 8) & 0xFF), (byte)(CameraDelayMilliSec & 0xFF) }, 5);
var totalBytesRead = 0;
while (segmentLength > 0)
{
if (WaitForIncomingData(GetTimeoutMilliSec(segmentLength)) == false)
{
throw new ApplicationException("Timeout");
}
var bytesToRead = System.Math.Min(_serialPort.BytesToRead, segmentLength);
var bytesRead = _serialPort.Read(frameBuffer, 0, bytesToRead);
segmentLength -= bytesRead;
totalBytesRead += bytesRead;
}
return(totalBytesRead);
}
//private void PortOnDataReceived(object sender, SerialDataReceivedEventArgs serialDataReceivedEventArgs)
//{
// if (serialDataReceivedEventArgs.EventType == SerialData.Chars)
// {
// // Keep doing this while there are bytes to read - don't rely on just event notification
// // The ESP8266 is very timing sensitive and subject to buffer overrun - keep the loop tight.
// var newInput = ReadExistingBinary();
// if (newInput != null && newInput.Length > 0)
// {
// _buffer.Put(newInput);
// }
// ProcessBufferedInput();
// }
//}
private void _port_DataReceived(UartController sender, DataReceivedEventArgs e)
{
byte[] newInput = new byte[sender.BytesToRead];
int bytesReceived = 0;
if (sender.BytesToRead > 0)
{
bytesReceived = sender.Read(newInput, 0, sender.BytesToRead);
}
if (bytesReceived > 0)
{
_buffer.Put(newInput);
}
ProcessBufferedInput();
}
private void SerialPort_DataReceived(UartController sender, DataReceivedEventArgs e)
{
var bytesReceived = serialPort.Read(rxBuffer, 0, e.Count);
var msg = Encoding.UTF8.GetString(rxBuffer, 0, bytesReceived);
if (msg.IndexOf("\r\n") > -1)
{
var msgs = Regex.Split(msg, "\r\n", RegexOptions.IgnoreCase);
ReadBuffer += msgs[0];
nmeaProcessor?.ProcessNmeaMessage(ReadBuffer.Trim());
ReadBuffer = msgs[1];
}
else
{
ReadBuffer += msg;
}
Debug.WriteLine($"Message arrived:{msg}");
}
private static void Serial_DataReceived(UartController sender, DataReceivedEventArgs e)
{
var data = new byte[serial.BytesToRead];
var count = serial.Read(data);
for (var i = 0; i < count; i++)
{
var s = new string((char)data[i], 1);
screen.DrawString(s, font, new SolidBrush(Color.Teal), cx, cy);
cx += 6;
if (cx > 150)
{
cx = 0;
cy += 8;
if (cy > 110)
{
cx = 0; cy = 0;
screen.Clear(Color.Black);
}
}
}
screen.Flush();
}
private void SerialDevice_DataReceived(UartController sender, DataReceivedEventArgs e)
{
if (e.Count == 0)
{
return;
}
byte[] rxBuffer = new byte[e.Count];
// read all available bytes from the Serial Device input stream
sender.Read(rxBuffer, 0, e.Count);
response.Append(UTF8Encoding.UTF8.GetString(rxBuffer));
int eolPosition;
do
{
// extract a line
eolPosition = response.ToString().IndexOf(EndOfLineMarker);
if (eolPosition != -1)
{
string line = response.ToString(0, eolPosition);
response = response.Remove(0, eolPosition + EndOfLineMarker.Length);
#if DIAGNOSTICS
Debug.WriteLine($" Line :{line} ResponseExpected:{atCommandExpectedResponse} Response:{response}");
#endif
int errorIndex = line.IndexOf(ErrorMarker);
if (errorIndex != -1)
{
string errorNumber = line.Substring(errorIndex + ErrorMarker.Length);
result = ModemErrorParser(errorNumber.Trim());
atExpectedEvent.Set();
}
if (atCommandExpectedResponse != string.Empty)
{
int successIndex = line.IndexOf(atCommandExpectedResponse);
if (successIndex != -1)
{
result = Result.Success;
atExpectedEvent.Set();
}
}
int receivedMessageIndex = line.IndexOf(ReplyMarker);
if (receivedMessageIndex != -1)
{
string[] fields = line.Split("=,:".ToCharArray());
int port = int.Parse(fields[1]);
int rssi = int.Parse(fields[2]);
int snr = int.Parse(fields[3]);
int length = int.Parse(fields[4]);
if (this.OnMessageConfirmation != null)
{
OnMessageConfirmation(rssi, snr);
}
if (length > 0)
{
string payload = fields[5];
if (this.OnReceiveMessage != null)
{
OnReceiveMessage(port, rssi, snr, payload);
}
}
}
}
}while (eolPosition != -1);
}
private void SerialDevice_DataReceived(UartController sender, DataReceivedEventArgs e)
{
if (e.Count == 0)
{
return;
}
try
{
byte[] rxBuffer = new byte[e.Count];
// read all available bytes from the Serial Device input stream
sender.Read(rxBuffer, 0, e.Count);
response.Append(UTF8Encoding.UTF8.GetString(rxBuffer));
int eolPosition;
do
{
// extract a line
eolPosition = response.ToString().IndexOf(EndOfLineMarker);
if (eolPosition != -1)
{
string line = response.ToString(0, eolPosition);
response = response.Remove(0, eolPosition + EndOfLineMarker.Length);
#if DIAGNOSTICS
Debug.WriteLine($" Line :{line} ResponseExpected:{atCommandExpectedResponse} Response:{response}");
#endif
int joinFailIndex = line.IndexOf(JoinFailedMarker);
if (joinFailIndex != -1)
{
result = Result.JoinFailed;
atExpectedEvent.Set();
}
int errorIndex = line.IndexOf(ErrorMarker);
if (errorIndex != -1)
{
string errorNumber = line.Substring(errorIndex + ErrorMarker.Length);
result = ModemErrorParser(errorNumber.Trim());
atExpectedEvent.Set();
}
if (atCommandExpectedResponse != string.Empty)
{
int successIndex = line.IndexOf(atCommandExpectedResponse);
if (successIndex != -1)
{
result = Result.Success;
atExpectedEvent.Set();
}
}
// If a downlink message payload then stored ready for metrics
if ((line.IndexOf(DownlinkPayloadMarker) != -1) || (line.IndexOf(DownlinkConfirmedPayloadMarker) != -1))
{
string receivedMessageLine = line.Substring(DownlinkPayloadMarker.Length);
string[] fields = receivedMessageLine.Split(':', ';');
DownlinkPort = byte.Parse(fields[0]);
DownlinkPayload = fields[2].Trim(' ', '"');
}
//
if ((line.IndexOf(DownlinkMetricsMarker) != -1) || (line.IndexOf(DownlinkConfirmedMetricsMarker) != -1))
{
string receivedMessageLine = line.Substring(DownlinkMetricsMarker.Length);
string[] fields = receivedMessageLine.Split(' ', ',');
int rssi = int.Parse(fields[3]);
double snr = double.Parse(fields[6]);
if (DownlinkPort != 0)
{
if (this.OnReceiveMessage != null)
{
OnReceiveMessage(DownlinkPort, rssi, snr, DownlinkPayload);
}
DownlinkPort = 0;
}
if (line.IndexOf(DownlinkConfirmedMetricsMarker) != -1)
{
if (this.OnMessageConfirmation != null)
{
OnMessageConfirmation(rssi, snr);
}
}
}
}
}while (eolPosition != -1);
}
catch (Exception ex)
{
Debug.WriteLine($"SerialDevice_DataReceived {ex.Message}");
response.Clear();
result = Result.Undefined;
atExpectedEvent.Set();
}
}