static public void Event()
{
if (SerialManager.serialPort.IsOpen && portConnected)
{
if (eventState == EventState.WAITCONNECT)
{
eventContext = HOST_STREAM_CONNECT_REQ;
int _length = BuildStream(streamBuffer, eventContext);
streamRecieved = false;
streamBufferPos = 0;
streamState = StreamState.WAITFORHEAD;
SerialManager.SetISRLength(1);
SerialManager.SendStream(streamBuffer, _length);
eventState = EventState.WAITRESP;
}
else if (eventState == EventState.SEND)
{
int _length = BuildStream(streamBuffer, eventContext);
streamRecieved = false;
streamBufferPos = 0;
streamState = StreamState.WAITFORHEAD;
SerialManager.SetISRLength(1);
SerialManager.SendStream(streamBuffer, _length);
eventState = EventState.WAITRESP;
}
else if (eventState == EventState.WAITRESP)
{
if (streamRecieved)
{
if (hostState == HostState.CONNECTED || eventContext == HOST_STREAM_CONNECT_REQ)
{
ProcessStream(streamBuffer, eventContext);
if (eventContext == HOST_STREAM_CONNECT_REQ && hostState == HostState.CONNECTED)
{
eventContext = HOST_STREAM_SPEED_REQ;
eventState = EventState.SEND;
}
else if (eventContext != HOST_STREAM_CONNECT_REQ)
{
eventContext = GetNextContext(eventContext);
eventState = EventState.SEND;
}
}
}
}
}
else
{
hostState = HostState.DISCONNECTED;
eventState = EventState.WAITCONNECT;
eventContext = HOST_STREAM_CONNECT_REQ;
streamRecieved = false;
streamBufferPos = 0;
streamState = StreamState.WAITFORHEAD;
SerialManager.SetISRLength(1);
}
}
static public bool StartCommunicaiton(string _com, int _baud)
{
bool retValue = false;
try
{
SerialManager.Connect(_com, _baud);
if (SerialManager.serialPort.IsOpen)
{
portConnected = true;
SystemTimer.InitTimer();
retValue = true;
}
}
catch (Exception) { };
return(retValue);
}
static public void DataHandle(object sender, SerialDataReceivedEventArgs e)
{
dataCount++;
if (streamState == StreamState.WAITFORHEAD)
{
if (SerialManager.serialPort.BytesToRead >= 1)
{
SerialManager.serialPort.Read(streamBuffer, streamBufferPos, 1);
if (streamBuffer[0] == HOST_STREAM_HEAD)
{
streamBufferPos = 1;
streamState = StreamState.WAITFORLENGTH;
SerialManager.SetISRLength(2);
}
}
}
else if (streamState == StreamState.WAITFORLENGTH)
{
if (SerialManager.serialPort.BytesToRead >= 2)
{
SerialManager.serialPort.Read(streamBuffer, streamBufferPos, 2);
streamBufferPos = 3;
streamState = StreamState.WAITFORPAYLOAD;
SerialManager.SetISRLength(
(int)StreamBuilder.GetUnsignedInt(streamBuffer, 1, StreamBuilder.BuilderType.INT16_BYTE));
}
}
else if (streamState == StreamState.WAITFORPAYLOAD)
{
int _length = (int)StreamBuilder.GetUnsignedInt(streamBuffer, 1, StreamBuilder.BuilderType.INT16_BYTE);
if (SerialManager.serialPort.BytesToRead >= _length)
{
streamLength = _length + 3;
SerialManager.serialPort.Read(streamBuffer, streamBufferPos, _length);
ConsoleData.AddInfo(streamBuffer, streamLength, false);
if (StreamBuilder.VerifyCheckSum(streamBuffer, 0, (UInt16)(streamLength - 2), streamBuffer[streamLength - 1])
== StreamBuilder.ChecksumResult.CHECKSUM_OK)
{
streamRecieved = true;
}
}
streamBufferPos = 0;
streamState = StreamState.WAITFORHEAD;
}
}
