/// <summary>
/// For "get" commands and simple "set" commands
/// </summary>
/// <param name="command"></param>
public ScribblerCommand(ScribblerHelper.Commands command)
{
Data = new byte[ScribblerHelper.CommandSize(command) - 1];
CommandType = (byte)command;
HasEcho = ScribblerHelper.HasEcho(command);
ResponseLength = ScribblerHelper.ReturnSize(command);
}
/// <summary>
/// For setAllLEDs command
/// </summary>
public ScribblerCommand(ScribblerHelper.Commands command, bool left, bool center, bool right)
{
Data = new byte[ScribblerHelper.CommandSize(command) - 1];
CommandType = (byte)command;
Data[0] = left ? (byte)1 : (byte)0;
Data[1] = center ? (byte)1 : (byte)0;
Data[2] = right ? (byte)1 : (byte)0;
HasEcho = ScribblerHelper.HasEcho(command);
ResponseLength = ScribblerHelper.ReturnSize(command);
}
/// <summary>
/// for speaker commands
/// </summary>
/// <param name="command"></param>
/// <param name="duration"></param>
/// <param name="frequency1"></param>
/// <param name="frequency2"></param>
public ScribblerCommand(ScribblerHelper.Commands command, int duration, int frequency1, int frequency2)
{
Data = new byte[ScribblerHelper.CommandSize(command) - 1];
CommandType = (byte)command;
Data[0] = (byte)(duration >> 8);
Data[1] = (byte)duration;
Data[2] = (byte)(frequency1 >> 8);
Data[3] = (byte)frequency1;
Data[4] = (byte)(frequency2 >> 8);
Data[5] = (byte)frequency2;
HasEcho = ScribblerHelper.HasEcho(command);
ResponseLength = ScribblerHelper.ReturnSize(command);
}
/// <summary>
/// For setName
/// </summary>
/// <param name="command"></param>
/// <param name="data"></param>
public ScribblerCommand(ScribblerHelper.Commands command, string data)
{
Data = new byte[ScribblerHelper.CommandSize(command) - 1];
CommandType = (byte)command;
int length = Math.Min(data.Length, 8);
char[] tmp = data.ToCharArray(0, length);
for (int i = 0; i < length; i++)
{
Data[i] = (byte)tmp[i];
}
for (int i = length; i < 8; i++)
{
Data[i] = 0;
}
HasEcho = ScribblerHelper.HasEcho(command);
ResponseLength = ScribblerHelper.ReturnSize(command);
}
/// <summary>
/// DO NOT USE THIS COMMAND DIRECTLY.
/// In Scribbler.cs, post a message to _scribblerComPort
/// </summary>
/// <param name="cmd"></param>
/// <returns></returns>
internal ScribblerResponse SendCommand(ScribblerCommand cmd)
{
ScribblerResponse echo = null;
ScribblerResponse response = null;
int outMessageSize = helper.CommandSize((ScribblerHelper.Commands)cmd.CommandType);
byte[] buffer = new byte[outMessageSize];
if (buffer != null)
{
int ix = 0;
//buffer = cmd.ToByteArray();
buffer[ix++] = cmd.CommandType;
// Changed this so it doesn't copy entire command (Fluke commands are shorter than 8 bytes)
int len = Math.Min(cmd.Data.Length, (outMessageSize - 1));
if (cmd.Data != null && cmd.Data.Length > 0)
{
Array.Copy(cmd.Data, 0, buffer, 1, len);
}
ix += len;
//foreach (byte b in cmd.Data)
// buffer[ix++] = b;
//fill to standard size
while (ix < outMessageSize)
{
buffer[ix++] = 0;
}
#if DEBUG
Console.Write("\nSent: ");
foreach (byte b in buffer)
{
if (b != 0)
{
Console.Write(b + " ");
}
else
{
Console.Write("` ");
}
}
Console.Write("\n");
#endif
try
{
// When requesting a response, clear the inbound buffer
if (_serialPort.BytesToRead > 0)
{
_serialPort.DiscardInBuffer();
}
_serialPort.Write(buffer, 0, ix);
}
catch
{
Console.WriteLine("Serial Port Timeout. Lost connection with Scribbler.");
//throw new IOException();
}
if (helper.HasEcho((ScribblerHelper.Commands)cmd.CommandType))
{
echo = GetEcho(buffer, outMessageSize);
}
response = GetCommandResponse(helper.ReturnSize((ScribblerHelper.Commands)cmd.CommandType), helper.HasEcho((ScribblerHelper.Commands)cmd.CommandType));
}
return(response);
}