// we send the dit and dahs via the serial port, pin7 to the rig
// between the rig and the serial port there is an optocoupler to have galvanic separation of the serial port and the rig
public static void SerialOut()
{
Console.WriteLine("Thread SerialOut");
bool bLastPin7 = false;
bool bPin7;
while (_continue)
{
// we take over the data to be sent from the list lMQ into our private list lNQ
lock (lMQ)
{
lock (lNQ)
{
lNQ.AddRange(lMQ);
lMQ.Clear();
}
}
if (lNQ.Count == 0)
{
Thread.Sleep(_waitMilliSecs);
continue;
}
if (lNQ.Count < iQueueSize - 2)
{
System.Console.Write('*');
Log2("lNQ queue too small, " + lNQ.Count);
}
else if (lNQ.Count > iQueueSize + 2)
{
System.Console.Write('!');
Log2("lNQ queue too large, " + lNQ.Count);
}
else if (lMQ.Count > 5)
{
System.Console.Write('!');
Log2("lMQ queue too large, " + lMQ.Count);
}
// we are delaying the replay to wipe out small delays on the network between key and rig
// in case that the bitVector is zero, and the queue is smaller than 5, we delay a bit
// bLast16AllZero = lNQ[lNQ.Count - 1].bitVector == 0;
// if (bLast16AllZero && lNQ.Count < iQueueSize) {
// Thread.Sleep(_waitMilliSecs); // we will wait here additional 10ms
// continue;
//}
MsgHeader aHs = lNQ[0];
// the bitVector contains 16 bits which we replay in this loop to the output pin, pin7
for (int i = 0; i < 16; i++)
{
bPin7 = (aHs.bitVector & (1 << i)) != 0;
if (!bLastPin7 && bPin7)
{
_serialPort.RtsEnable = true;
bLastPin7 = bPin7;
if (bStartAudio)
{
waveOut.Play();
}
Morse.ToOn();
}
else if (bLastPin7 && !bPin7)
{
_serialPort.RtsEnable = false;
if (bStartAudio)
{
waveOut.Stop();
}
Morse.ToOff();
bLastPin7 = bPin7;
}
else if (!bPin7)
{
Morse.IsOff();
}
//int iWait = _waitMilliSecs - Math.Max(0, lNQ.Count - iQueueSize);
int iWait = _waitMilliSecs - (lNQ.Count - iQueueSize); // if queue is too small add ms, if queue is too big remove ms
if (iWait > 0)
{
Thread.Sleep(iWait);
}
/* Using Pin 5 = Ground and Pin 7 RTS out to generate +5, +-0 V output
* GR 2020-07-19 tested okay */
}
lock (lNQ)
lNQ.RemoveAt(0);
}
_serialPort.RtsEnable = false;
}
// loop for polling the serial pins where our Junkers key is attached
// polling is every _waitMilliSecs, currently 10ms
public static void Read()
{
bool pin6_last = false;
bool pin8_last = false;
int iScanCount = 0;
int iClientCount = 0;
short sOnOffStates = 0;
while (_continue)
{
try
{
// query relevant pins on serial port
bool pin6 = _serialPort.DsrHolding;
bool pin8 = _serialPort.CtsHolding;
long lMilliSecs = DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond;
if (bSideSwiper)
{
pin6 |= pin8; // add the status of Pin8 for SideSwiper
}
// the designed protocol uses a byte to store 16 polls
if (pin6)
{
sOnOffStates |= (short)(1 << iScanCount);
}
// when all bits of the byte are set, we send this over to the rig
if (iScanCount == 15)
{
if ((lMQ.Count + lNQ.Count) > 5)
{
System.Console.Write('*'); // warn user if messages to send to the server queue up
Log2("queues too large, lMQ=" + lMQ.Count + ", lNQ=" + lNQ.Count);
}
// the implemented protocol uses one byte to store a reference created by the client
// in our case it has the size of a byte (0..255), the counter is reset to 0 when it hits the boundary
// with the client refrence byte (0..255) the epoch time in ms is kept in a dictinoary,
// the server will send the client reference unmodified back to the client, and the client can calculate a rounttrip time
if (dCliTimeStamps.ContainsKey(iClientCount))
{
Log2("Warning: Client time stamp not cleared=" + iClientCount);
lock (dCliTimeStamps)
dCliTimeStamps.Remove(iClientCount);
}
lock (dCliTimeStamps)
dCliTimeStamps.Add(iClientCount, lMilliSecs);
MsgHeader mHs;
mHs.serverCounter = 0;
mHs.bitVector = sOnOffStates;
mHs.clientCounter = Convert.ToByte(iClientCount);
// hand over the data stored in the msgHeader structure indirectly to the send thread
NetSend(mHs);
iScanCount = 0;
sOnOffStates = 0;
if (iClientCount == 255)
{
iClientCount = 0;
}
else
{
iClientCount++;
}
}
else
{
iScanCount++;
}
// capture the case where the last status of the key was up (0) and the new is down (1).
if (pin6 && !pin6_last)
{
//start the listening tone
waveOut.Play();
Morse.ToOn();
}
else if (!pin6 && pin6_last) // now capture the case where the last status of the key was down (1) and the new is up (0).
// stop the listening tone
{
waveOut.Stop();
Morse.ToOff();
}
else if (!pin6)
{
Morse.IsOff();
}
if (pin8 && !pin8_last)
{
// needs to be implemented, implement keyer functionality
}
if (!pin8 && pin8_last)
{
// needs to be implemented, implement keyer functionality
}
pin6_last = pin6;
pin8_last = pin8;
}
catch (TimeoutException) { }
Thread.Sleep(_waitMilliSecs);
}
}