Forwarding RealTime Messages

[ndsizeif]

Greetings,
I have been using code based on the DualMerger.ino example in the repository in a couple of projects. It works very well. In my last project I had a device that cared about real time clock, start, and stop messages. The code I was using from that sketch doesn't seem to forward them.

void loop()

    {
  
  
        if (midiA.read())
  
  
        {
  
  
            // Thru on A has already pushed the input message to out A.
  
  
            // Forward the message to out B as well.
  
  
            midiB.send(midiA.getType(),
  
  
                       midiA.getData1(),
  
  
                       midiA.getData2(),
  
  
                       midiA.getChannel());
  
  
        }

I'm simply trying to get the real time messages that are coming in from midiA, to get sent to midiB just like note on/off, program change, and control change are. After reading the documentation I'm confident that I am making the solution more complicated than it is in reality. Real time messages get transmitted just fine with midi thru. I suppose the merger code is just missing a function. I tried to use getTransport(), but that isn't it.

If someone could point me the right direction I would appreciate it. Thank you.

[lathoub]

Hi

The above code will not work, if you want to send RealTime messages (typically 1 byte long). The midiB.send command will filter out any Real Time messages (only channel messages are processed).

arduino_midi_library/src/MIDI.hpp

Lines 159 to 166 in d9149d1

	template<class Transport, class Settings, class Platform>
	void MidiInterface<Transport, Settings, Platform>::send(MidiType inType,
	DataByte inData1,
	DataByte inData2,
	Channel inChannel)
	{
	if (inType <= PitchBend) // Channel messages
	{

You might want to use midiB.sendRealTime command (and check first if the incoming data from midiA is a RealTime message)

[ndsizeif]

I appreciate you allowing me to figure out a solution while giving a bit of help.
I needed to read the MIDI.hpp file you linked more closely.

if (MIDIA.getType() >= 0xF0) {

    MIDIB.sendRealTime(MIDIA.getType());

This got me the results I wanted. Thanks again.