private async Task SendTxData()
{
logger.Info(">SendTx Ready:" + Name);
FTDI.FT_STATUS ftStatus = FTDI.FT_STATUS.FT_OTHER_ERROR;
USBMsg msg = null;
UInt32 numBytesWritten = 0;
while (!cts.IsCancellationRequested)
{
if ((pendMsgs.Count > 0) && ((avl - sentMsgs.Count) > 10))
{
pendMsgs.TryTake(out msg);
msg.seq = ++nxtseq;
sentMsgs.Enqueue(msg);
string hex = "Send: " + Name + ": ";
int siz = msg.size;
for (int ptr = 0; ptr < siz; ptr++)
{
hex += " " + msg.msg[ptr].ToString("x2");
}
logger.Info(hex);
ftStatus = myFtdiDevice.Write(msg.msg, msg.size, ref numBytesWritten);
if (ftStatus != FTDI.FT_STATUS.FT_OK)
{
logger.Error("<failure: " + Name + ":" + ftStatus.ToString());
}
else
{
logger.Info(string.Format("< {0:x2}", msg.seq));
}
}
else
{
await Task.Delay(5);
}
}
logger.Info(">SendTx Closed:" + Name);
tkn.ThrowIfCancellationRequested();
}
private async Task ShowRxData()
{
logger.Info(">ShowRx Ready: " + Name);
FTDI.FT_STATUS ftStatus = FTDI.FT_STATUS.FT_OTHER_ERROR;
UInt32 numBytesAvailable = 0;
byte[] resp = new byte[4];
byte cod = 0;
byte seq = 0;
byte cnt = 0;
byte chk = 0;
USBMsg msg = null;
UInt32 numBytesRead = 0;
try
{
ManualResetEventSlim hdl = new ManualResetEventSlim(false);
while (!cts.IsCancellationRequested)
{
ftStatus = myFtdiDevice.GetRxBytesAvailable(ref numBytesAvailable);
if (ftStatus != FTDI.FT_STATUS.FT_OK)
{
// Wait for a key press
logger.Error("Failed to get number of bytes available to read:" + Name + " (error " + ftStatus.ToString() + ")");
throw new InvalidOperationException("Failed to get number of bytes available to read");
}
if (numBytesAvailable > 3)
{
ftStatus = myFtdiDevice.Read(resp, numBytesAvailable, ref numBytesRead);
if (ftStatus != FTDI.FT_STATUS.FT_OK)
{
// Wait for a key press
logger.Error("Failed to read data:" + Name + " (error " + ftStatus.ToString() + ")");
}
cod = resp[0];
seq = resp[1];
cnt = resp[2];
chk = resp[3];
logger.Info(string.Format("Recv: {4}: {0:x2} {1:x2} {2:x2} {3:x2}", cod, seq, cnt, chk, Name));
switch (cod)
{
case 0x80:
if (sentMsgs.TryPeek(out msg))
{
if (msg.seq == seq)
{
if (sentMsgs.TryDequeue(out msg))
{
bufrPool.Add(msg);
}
}
}
avl = cnt;
if (avl > maxavl)
{
maxavl = avl;
}
break;
case 0x90:
avl = cnt;
if (avl > maxavl)
{
maxavl = avl;
}
break;
default:
logger.Error(string.Format(">Invalid resp: {4}: {0:x2} {1:x2} {2:x2} {3:x2}", cod, seq, cnt, chk, Name));
break;
}
}
else
{
//using (EventWaitHandle hdl = new EventWaitHandle(false, EventResetMode.ManualReset))
//{
// myFtdiDevice.SetEventNotification(0, hdl);
// hdl.WaitOne(500);
//}
hdl.Reset();
//myFtdiDevice.SetEventNotification(FTD2XX_NET.FTDI.FT_EVENTS.FT_EVENT_RXCHAR, hdl.WaitHandle);
hdl.Wait(-1, tkn);
//WaitHandle.WaitAny(new WaitHandle[] { hdl.WaitHandle, tkn.WaitHandle }, -1);
await hdl.WaitHandle.WaitOneAsync(tkn);
}
}
}
finally
{
}
tkn.ThrowIfCancellationRequested();
}