public void Synchronize(bool positivePhase)
{
PositivePhase = positivePhase;
if (BitSink != null)
{
BitSink.Resynchronized();
}
State = eLearnState.ProcessingBit1;
}
public void TransmissionStart()
{
State = eLearnState.ProcessingBit1;
if (BitSink != null)
{
BitSink.TransmissionStart();
}
}
public void ClockBit(bool state)
{
switch (State)
{
case eLearnState.ProcessingBit1:
LastBitState = state;
State = eLearnState.ProcessingBit2;
break;
case eLearnState.ProcessingBit2:
if (LastBitState && !state)
{
if (BitSink != null)
{
BitSink.ClockBit(true);
}
}
else if (!LastBitState && state)
{
if (BitSink != null)
{
BitSink.ClockBit(false);
}
}
else
{
if (BitSink != null)
{
BitSink.TransmissionEnd();
}
}
State = eLearnState.ProcessingBit1;
break;
}
}
public void ClockBit(bool state)
{
switch (State)
{
case eLearnState.Idle:
LastBitState = state;
State = eLearnState.Synchronizing;
break;
case eLearnState.Synchronizing:
if (state == LastBitState)
{
/* the phase depends on the current state */
PositivePhase = state;
if (Verbose)
{
Log.AddMessage("BiphaseDecoder", "Synchronized.");
}
if (BitSink != null)
{
BitSink.Resynchronized();
BitSink.ClockBit(false);
}
State = eLearnState.ProcessingBit1;
}
else
{
LastBitState = state;
}
break;
case eLearnState.ProcessingBit1:
LastBitState = state;
State = eLearnState.ProcessingBit2;
break;
case eLearnState.ProcessingBit2:
if (LastBitState == state)
{
if (PositivePhase == state)
{
if (Verbose)
{
Log.AddMessage("BiphaseDecoder", "Decoding failed. Resynchronizing.");
}
if (BitSink != null)
{
BitSink.Desynchronized();
}
State = eLearnState.Idle;
return;
}
else
{
PositivePhase ^= true;
if (BitSink != null)
{
BitSink.ClockBit(false);
}
}
}
else
{
if (PositivePhase != state)
{
if (Verbose)
{
Log.AddMessage("BiphaseDecoder", "Decoding failed. Resynchronizing.");
}
if (BitSink != null)
{
BitSink.Desynchronized();
}
State = eLearnState.Idle;
return;
}
else
{
if (BitSink != null)
{
BitSink.ClockBit(true);
}
}
}
State = eLearnState.ProcessingBit1;
break;
}
}
public void Resynchronized()
{
State = eLearnState.Idle;
}
public void Resynchronized()
{
State = eLearnState.ProcessingBit1;
}
