public static void SerialRead(this ArduinoSession session, HW_SERIAL hw, bool continuously = true, int?maxBytesToRead = null)
{
var command = new byte[14];
command[0] = Utility.SysExStart;
command[1] = SERIAL_MESSAGE;
command[2] = (byte)(SERIAL_READ | (int)hw); //SERIAL_READ //OR with port (0x31 = SERIAL_READ | HW_SERIAL1)
command[3] = continuously ? (byte)0x00 : (byte)0x01; //SERIAL_READ_MODE 0x00 => read continuously, 0x01 => stop reading
if (maxBytesToRead.HasValue)
{
if (maxBytesToRead.Value >= 32767)
{
throw new ArgumentOutOfRangeException(nameof(maxBytesToRead), "不能大于32767");
}
var bytes = maxBytesToRead.Value.encode32BitSignedInteger();
command[4] = bytes[0];
command[5] = bytes[1];
command[6] = Utility.SysExEnd;
}
else
{
command[4] = Utility.SysExEnd;
}
session.Write(command, 0, maxBytesToRead.HasValue ? 6 : 4);
}
public static void SerialFlush(this ArduinoSession session, HW_SERIAL hw)
{
var command = new[] {
Utility.SysExStart,
SERIAL_MESSAGE,
(byte)(SERIAL_FLUSH | (int)hw),//SERIAL_FLUSH OR with port (0x61 = SERIAL_FLUSH | HW_SERIAL1)
Utility.SysExEnd
};
session.Write(command);
}
public static void SerialClose(this ArduinoSession session, HW_SERIAL hw)
{
var command = new[] {
Utility.SysExStart,
SERIAL_MESSAGE,
(byte)(SERIAL_CLOSE | (int)hw),//SERIAL_CLOSE // OR with port (0x51 = SERIAL_CLOSE | HW_SERIAL1)
Utility.SysExEnd
};
session.Write(command);
}
public static void SerialWrite(this ArduinoSession session, HW_SERIAL hw, string value, System.Text.Encoding encoding = null)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (encoding == null)
{
encoding = System.Text.Encoding.ASCII;
}
var b = encoding.GetBytes(value);
SerialWrite(session, hw, b);
}
public static void SerialWrite(this ArduinoSession session, HW_SERIAL hw, byte[] value)
{
var b = value.To14BitIso();
var command = new byte[b.Length + 4];
command[0] = Utility.SysExStart;
command[1] = SERIAL_MESSAGE;
command[2] = (byte)(SERIAL_WRITE | (int)hw);//SERIAL_WRITE //OR with port (0x21 = SERIAL_WRITE | HW_SERIAL1)
b.CopyTo(command, 3);
command[command.Length - 1] = Utility.SysExEnd;
session.Write(command);
}
/// <summary>
/// Configures the specified hardware or software serial port. RX and TX pins are optional and should only be specified if the platform requires them to be set.
/// </summary>
public static void SerialConfig(this ArduinoSession session, HW_SERIAL hw, int baud = 9600, int?rxPin = null, int?txPin = null)
{
if (rxPin.HasValue && (rxPin < 0 || rxPin > 127))
{
throw new ArgumentOutOfRangeException(nameof(rxPin), Messages.ArgumentEx_PinRange0_127);
}
if (txPin.HasValue && (txPin < 0 || txPin > 127))
{
throw new ArgumentOutOfRangeException(nameof(txPin), Messages.ArgumentEx_PinRange0_127);
}
if (baud >= 4194303)
{
throw new ArgumentOutOfRangeException(nameof(baud), "不能大于4194303");
}
var bytes = baud.encode32BitSignedInteger();
var command = new byte[9];
command[0] = Utility.SysExStart;
command[1] = SERIAL_MESSAGE;
command[2] = (byte)(SERIAL_CONFIG | (int)hw); //SERIAL_CONFIG //OR with port (0x11 = SERIAL_CONFIG | HW_SERIAL1)
command[3] = bytes[0]; //baud (bits 0 - 6)
command[4] = bytes[1]; //baud (bits 7 - 13)
command[5] = bytes[2]; //baud (bits 14 - 20)
if (rxPin.HasValue && txPin.HasValue)
{
command[6] = (byte)rxPin;
command[7] = (byte)txPin;
command[8] = Utility.SysExEnd;
}
else
{
command[6] = Utility.SysExEnd;
}
session.Write(command, 0, (rxPin.HasValue && txPin.HasValue) ? 8 : 6);
}
