private static void serialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
tempSerialReceiveBuff = new byte[serial.BytesToRead];
serial.Read(tempSerialReceiveBuff, 0, tempSerialReceiveBuff.Length);
if (!Busy)
{
// Just ignore read data that we didnt asked for
return;
}
switch (uartReceiver.CollectData(tempSerialReceiveBuff))
{
case UARTResult.Done:
taskState = 0;
Running = 0;
Busy = false;
// All data collected, process it in a given success delegate if checksum matches
ChecksumClass cs = new ChecksumClass();
if (cs.VerifyChecksumFromReceivedMessage(uartReceiver.bData))
{
// Checksum match
var dataWithoutChecksum = UARTHelperClass.RemoveChecksumFromMessage(uartReceiver.bData);
uartReceiver.Reset();
FormCustomConsole.WriteLineWithConsole("Finished from DataReceived method");
_successCallback(dataWithoutChecksum);
}
else
{
if (_useRetry)
{
if (_retryCount >= _TOTAL_RETRY)
{
FormCustomConsole.WriteWithConsole("Aborting process (checksum doesnt match) at ");
FormCustomConsole.WriteLineWithConsole(DateTime.Now.Minute + ":" + DateTime.Now.Second + ":" + DateTime.Now.Millisecond);
Busy = false;
_failCallback();
}
else
{
// Leave busy flag we are not finished yet
_retryCount++;
_sleepBeforeRetry = 1;
taskState = 2;
}
}
else
{
// Checksum not valid
Busy = false;
_failCallback();
}
}
break;
case UARTResult.WaitMoreData:
Running = 1;
break;
case UARTResult.Error:
default:
uartReceiver.Reset();
Running = 0;
throw new Exception("Error with UARTResult in SerialDriver.serialPort_DataReceived");
}
}
private static void TickTask()
{
switch (taskState)
{
case 0: // IDLE
//Console.WriteLine("Tick IDLE");
break;
case 1:
//Console.WriteLine("Tick RUNNING " + Running.ToString());
if (Running == 0)
{
Console.WriteLine("Tick Finished");
taskState = 0;
return;
}
if (Busy == false)
{
// This shouldnt happen
throw new Exception("Wrong busy flag in SerialDriver.TickTask");
}
if (Running++ >= MAX_TIMEOUTS)
{
// Timeout, retry if possible or restart everything and call fail delegate
FormCustomConsole.WriteWithConsole("Tick timeout at ");
FormCustomConsole.WriteLineWithConsole(DateTime.Now.Minute + ":" + DateTime.Now.Second + ":" + DateTime.Now.Millisecond);
uartReceiver.Reset();
taskState = 0;
if (_useRetry)
{
if (_retryCount >= _TOTAL_RETRY)
{
FormCustomConsole.WriteWithConsole("Aborting process at ");
FormCustomConsole.WriteLineWithConsole(DateTime.Now.Minute + ":" + DateTime.Now.Second + ":" + DateTime.Now.Millisecond);
Busy = false;
_failCallback();
}
else
{
// Leave busy flag we are not finished yet
_retryCount++;
_sleepBeforeRetry = 1;
taskState = 2;
}
}
else
{
Busy = false;
_failCallback();
}
return;
}
break;
case 2: // State for retry delay\
//Console.WriteLine("Retry delay state " + _sleepBeforeRetry);
if (_sleepBeforeRetry++ >= _TOTAL_SLEEP_CNT)
{
if (serial.IsOpen)
{
FormCustomConsole.WriteWithConsole("Sending again at ");
FormCustomConsole.WriteLineWithConsole(DateTime.Now.Minute + ":" + DateTime.Now.Second + ":" + DateTime.Now.Millisecond);
serial.Write(dataPointer, 0, dataPointer.Length);
taskState = 1; // Put SM where it belongs
Running = 1;
}
else
{
// Abort everything
System.Windows.Forms.MessageBox.Show("Port is not open!");
Busy = false;
_failCallback();
taskState = 0;
}
}
break;
default:
throw new Exception("Corrupted state in SerialDriver.TickTask");
}
}