Help! Drop-outs on MacOS

[EdBeardon]

Hi Guys,

Wondered if I could get some help with my code - I've used one of the examples and managed to get it to send a MIDI note continuously

My Mac is able to connect to the session and receive these MIDI notes but after 2/3 minutes my connection to the RTP session times out. Wondered if anyone had experienced this and could help?

I'm using a W5500 and the Ethernet3 library.

Code & image attached

#include <Ethernet3.h>
#define USE_DIRECTORY
#define SerialMon Serial
#define APPLEMIDI_DEBUG SerialMon
#include <AppleMIDI.h>

// Enter a MAC address for your controller below.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
byte mac[] = {
0x82, 0x54, 0xAD, 0xF6, 0xB2, 0x4D
};

unsigned long t1 = millis();
int8_t isConnected = 0;

APPLEMIDI_CREATE_DEFAULTSESSION_INSTANCE();

void(* resetFunc) (void) = 0; // declare reset fuction at address 0

// -----------------------------------------------------------------------------
//
// -----------------------------------------------------------------------------
void setup()
{

DBG_SETUP(115200);
DBG("Booting");

Ethernet.init(4); // maxSockNum = 4 Socket 0...3 -> RX/TX Buffer 4k

if (Ethernet.begin(mac) == 0) {
DBG(F("Failed DHCP, check network cable & reboot"));
for (;;);
}

AppleMIDI.directory.push_back(IPAddress(192, 168, 0, 177));
AppleMIDI.directory.push_back(IPAddress(192, 168, 0, 66));
// AppleMIDI.whoCanConnectToMe = APPLEMIDI_NAMESPACE::None;
// AppleMIDI.whoCanConnectToMe = APPLEMIDI_NAMESPACE::OnlyComputersInMyDirectory;
AppleMIDI.whoCanConnectToMe = APPLEMIDI_NAMESPACE::Anyone;

DBG(F("OK, now make sure you an rtpMIDI session that is Enabled"));
DBG(F("Add device named Arduino with Host"), Ethernet.localIP(), "Port", AppleMIDI.getPort(), "(Name", AppleMIDI.getName(), ")");
DBG(F("Select and then press the Connect button"));
DBG(F("Then open a MIDI listener and monitor incoming notes"));

MIDI.begin();

// Stay informed on connection status
AppleMIDI.setHandleConnected([](const APPLEMIDI_NAMESPACE::ssrc_t & ssrc, const char* name) {
isConnected++;
DBG(F("Connected to session"), ssrc, name);
});
AppleMIDI.setHandleDisconnected([](const APPLEMIDI_NAMESPACE::ssrc_t & ssrc) {
isConnected--;
DBG(F("Disconnected"), ssrc);
resetFunc(); //call reset
});

MIDI.setHandleNoteOn([](byte channel, byte note, byte velocity) {
DBG(F("NoteOn"), note);
});
MIDI.setHandleNoteOff([](byte channel, byte note, byte velocity) {
DBG(F("NoteOff"), note);
});

DBG(F("Sending MIDI messages every second"));
}

// -----------------------------------------------------------------------------
//
// -----------------------------------------------------------------------------
void loop()
{
// Listen to incoming notes
MIDI.read();

MIDI.sendNoteOn(01,55,01);
// MIDI.sendNoteOff(note, velocity, channel);
//}

delay(100);
}

[lathoub]

Hi @EdBeardon

there are many issues with the use of delay(100); in the main loop. Don;t do this! Look at this example to send notes every x seconds

Start with removing delay(100); and MIDI.sendNoteOne and see if it remains connected

[EdBeardon]

Thanks @lathoub, still seems to be connected without sending any messages - what's the next step please?

[lathoub]

Good!
Next: look at this example on how to send notes every x seconds

[EdBeardon]

Thanks! Got it working, without disconnecting with code below:

if ((isConnected > 0) && (millis() - t1) > 1000)
{
t1 = millis();

MIDI.sendNoteOn(1,55,1);

// MIDI.sendNoteOff(note, velocity, channel);

[lathoub]

Let me know if Ethernet3.h is stable