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https://github.com/fasteddy516/SimplySerial.git
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auto-(re)connect work-in-progress
This commit is contained in:
Edward Wright
parent
b66e9bb4a7
commit
c3c6a5ca7e
@ -30,110 +30,136 @@ namespace SimplySerial
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// process all command-line arguments
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ProcessArguments(args);
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// set up the serial port
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serialPort = new SerialPort(port.name, baud, parity, dataBits, stopBits)
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{
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Handshake = Handshake.None, // we don't need to support any handshaking at this point
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ReadTimeout = 1, // minimal timeout - we don't want to wait forever for data that may not be coming!
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WriteTimeout = 250, // small delay - if we go too small on this it causes System.IO semaphore timeout exceptions
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DtrEnable = true, // without this we don't ever receive any data
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RtsEnable = true // without this we don't ever receive any data
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};
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string received = string.Empty; // this is where data read from the serial port will be temporarily stored
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// attempt to open the serial port, terminate on error
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try
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{
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serialPort.Open();
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}
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catch (System.UnauthorizedAccessException uae)
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{
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ExitProgram((uae.GetType() + " occurred while attempting to open " + port.name + ". Is this port already in use in another application?"), exitCode: -1);
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}
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catch (Exception e)
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{
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ExitProgram((e.GetType() + " occurred while attempting to open " + port.name + "."), exitCode: -1);
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}
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// set up keyboard input for relay to serial port
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// set up keyboard input for program control and relay to serial port
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ConsoleKeyInfo keyInfo = new ConsoleKeyInfo();
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Console.TreatControlCAsInput = true; // we need to use CTRL-C to activate the REPL in CircuitPython, so it can't be used to exit the application
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// if we get this far, clear the screen and send the connection message if not in 'quiet' mode
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Console.Clear();
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if (!SimplySerial.Quiet)
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{
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Console.WriteLine(("<<< SimplySerial v{0} connected via {1} >>>\n" +
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"Settings : {2} baud, {3} parity, {4} data bits, {5} stop bit{6}, auto-connect {7}.\n" +
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"Device : {8} ({9}) {10} ({11}){12}\n" +
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"---\n\nUse CTRL-X to exit.\n"),
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version,
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port.name,
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baud,
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(parity == Parity.None) ? "no" : (parity.ToString()).ToLower(),
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dataBits,
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(stopBits == StopBits.None) ? "0" : (stopBits == StopBits.One) ? "1" : (stopBits == StopBits.OnePointFive) ? "1.5" : "2", (stopBits == StopBits.One) ? "" : "s",
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(autoConnect == AutoConnect.ONE) ? "on" : (autoConnect == AutoConnect.ANY) ? "any" : "off",
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port.board.make,
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port.vid,
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port.board.model,
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port.pid,
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(port.board.isCircuitPython) ? " + CircuitPython" : ""
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);
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}
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// this is where data read from the serial port will be temporarily stored
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string received = string.Empty;
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// this is the core functionality - loop while the serial port is open
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while (serialPort.IsOpen)
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//main loop - keep this up until instructed otherwise
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do
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{
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// exit the program if CTRL-X was pressed
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if (Console.KeyAvailable)
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{
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keyInfo = Console.ReadKey(intercept: true);
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if ((keyInfo.Key == ConsoleKey.X) && (keyInfo.Modifiers == ConsoleModifiers.Control))
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{
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Output("\n<<< SimplySerial session terminated via CTRL-X >>>");
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ExitProgram(silent: true);
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}
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}
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// set up the serial port
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serialPort = new SerialPort(port.name, baud, parity, dataBits, stopBits)
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{
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Handshake = Handshake.None, // we don't need to support any handshaking at this point
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ReadTimeout = 1, // minimal timeout - we don't want to wait forever for data that may not be coming!
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WriteTimeout = 250, // small delay - if we go too small on this it causes System.IO semaphore timeout exceptions
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DtrEnable = true, // without this we don't ever receive any data
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RtsEnable = true // without this we don't ever receive any data
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};
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// attempt to open the serial port, terminate on error
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try
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{
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// process keypresses for transmission through the serial port
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if (Console.KeyAvailable)
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{
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// determine what key is pressed (including modifiers)
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keyInfo = Console.ReadKey(intercept: true);
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// exit the program if CTRL-X was pressed
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if ((keyInfo.Key == ConsoleKey.X) && (keyInfo.Modifiers == ConsoleModifiers.Control))
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{
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Output("\n<<< SimplySerial session terminated via CTRL-X >>>");
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ExitProgram(silent: true);
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}
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// properly process the backspace character
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else if (keyInfo.Key == ConsoleKey.Backspace)
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{
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serialPort.Write("\b");
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Thread.Sleep(150); // sort of cheating here - by adding this delay we ensure that when we process the receive buffer it will contain the correct backspace control sequence
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}
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// everything else just gets sent right on through
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else
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serialPort.Write(Convert.ToString(keyInfo.KeyChar));
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}
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// process data coming in from the serial port
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received = serialPort.ReadExisting();
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// if anything was received, process it
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if (received.Length > 0)
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{
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// properly process backspace
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if (received == ("\b\x1B[K"))
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received = "\b \b";
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// write what was received to console
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Console.Write(received);
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}
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serialPort.Open();
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}
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catch (System.UnauthorizedAccessException uae)
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{
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Output(uae.GetType() + " occurred while attempting to open " + port.name + ". Is this port already in use in another application?");
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serialPort.Dispose();
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Thread.Sleep(1000);
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continue;
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}
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catch (Exception e)
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{
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ExitProgram((e.GetType() + " occurred while attempting to read/write to/from " + port.name + "."), exitCode: -1);
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Output(e.GetType() + " occurred while attempting to open " + port.name + ".");
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serialPort.Dispose();
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Thread.Sleep(1000);
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continue;
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}
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}
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// if we get this far, clear the screen and send the connection message if not in 'quiet' mode
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Console.Clear();
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if (!SimplySerial.Quiet)
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{
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Console.WriteLine(("<<< SimplySerial v{0} connected via {1} >>>\n" +
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"Settings : {2} baud, {3} parity, {4} data bits, {5} stop bit{6}, auto-connect {7}.\n" +
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"Device : {8} ({9}) {10} ({11}){12}\n" +
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"---\n\nUse CTRL-X to exit.\n"),
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version,
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port.name,
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baud,
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(parity == Parity.None) ? "no" : (parity.ToString()).ToLower(),
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dataBits,
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(stopBits == StopBits.None) ? "0" : (stopBits == StopBits.One) ? "1" : (stopBits == StopBits.OnePointFive) ? "1.5" : "2", (stopBits == StopBits.One) ? "" : "s",
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(autoConnect == AutoConnect.ONE) ? "on" : (autoConnect == AutoConnect.ANY) ? "any" : "off",
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port.board.make,
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port.vid,
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port.board.model,
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port.pid,
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(port.board.isCircuitPython) ? " + CircuitPython" : ""
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);
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}
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// this is the core functionality - loop while the serial port is open
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while (serialPort.IsOpen)
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{
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try
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{
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// process keypresses for transmission through the serial port
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if (Console.KeyAvailable)
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{
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// determine what key is pressed (including modifiers)
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keyInfo = Console.ReadKey(intercept: true);
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// exit the program if CTRL-X was pressed
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if ((keyInfo.Key == ConsoleKey.X) && (keyInfo.Modifiers == ConsoleModifiers.Control))
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{
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Output("\n<<< SimplySerial session terminated via CTRL-X >>>");
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ExitProgram(silent: true);
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}
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// properly process the backspace character
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else if (keyInfo.Key == ConsoleKey.Backspace)
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{
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serialPort.Write("\b");
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Thread.Sleep(150); // sort of cheating here - by adding this delay we ensure that when we process the receive buffer it will contain the correct backspace control sequence
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}
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// everything else just gets sent right on through
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else
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serialPort.Write(Convert.ToString(keyInfo.KeyChar));
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}
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// process data coming in from the serial port
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received = serialPort.ReadExisting();
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// if anything was received, process it
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if (received.Length > 0)
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{
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// properly process backspace
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if (received == ("\b\x1B[K"))
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received = "\b \b";
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// write what was received to console
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Console.Write(received);
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}
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}
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catch (Exception e)
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{
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Output(e.GetType() + " occurred while attempting to read/write to/from " + port.name + ".");
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serialPort.Dispose();
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Thread.Sleep(1000);
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continue;
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}
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}
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} while (autoConnect > AutoConnect.NONE);
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// the program should have ended gracefully before now - there is no good reason for us to be here!
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ExitProgram("\nSession terminated unexpectedly.", exitCode: -1);
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ExitProgram("<<< SimplySerial session terminated >>>", exitCode: -1);
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}
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