private TwoStepProtocol WaitForResponse()
{
int timeout = Timeout;
TwoStepProtocol result = TwoStepProtocol.Timeout;
char response = (Char)TwoStepProtocol.Timeout;
do
{
if (SerialPort.BufferCount() > 0)
{
response =
(Char)(SerialPort.ReadChar().ToString(CultureInfo.InvariantCulture)[0]);
timeout = 0;
}
else
{
Thread.Sleep(100);
timeout -= 100;
}
} while (timeout > 0);
if (response == (Char)TwoStepProtocol.Acknowledge)
{
result = TwoStepProtocol.Acknowledge;
}
else
{
if (response == (Char)TwoStepProtocol.NegativeAcknowledge)
{
result = TwoStepProtocol.NegativeAcknowledge;
}
}
return(result);
}