WaveShare ESP32-P4-ETH-POE Problem

[jaredsummer]

Hi, I am testing WaveShare ESP32-P4-ETH-POE board for AppleMIDI. I use Arduino IDE and wESP32_NoteOnOffEverySec sketch as a starting template. I had to modify ETH_Helper.h:
#include <ETH.h>
#include <ESPmDNS.h>
#include <WiFi.h>
#include <Arduino.h>
#include <WiFiUdp.h>
static bool eth_connected = false;

void WiFiEvent(WiFiEvent_t event)
{
switch (event) {
case ARDUINO_EVENT_ETH_START:
DBG("ETH Started");
//set eth hostname here
ETH.setHostname("esp32-ethernet");
break;
case ARDUINO_EVENT_ETH_CONNECTED:
DBG("ETH Connected");
break;
case ARDUINO_EVENT_ETH_GOT_IP:
DBG("ETH MAC:", ETH.macAddress(), "IPv4:", ETH.localIP(), ETH.linkSpeed(), "Mbps");
if (ETH.fullDuplex())
DBG("FULL_DUPLEX");
eth_connected = true;
break;
case ARDUINO_EVENT_ETH_DISCONNECTED:
DBG("ETH Disconnected");
eth_connected = false;
break;
case ARDUINO_EVENT_ETH_STOP:
DBG("ETH Stopped");
eth_connected = false;
break;
default:
break;
}
}

The code compiles and basically works, but when I connect it to a DAW (Pro Tools, Logic) and the DAW starts transmitting to the network session, the client (my ESP32-P4 device) gets disconnected from Apple Audio MIDI Setup.

I think this might be related to the Ethernet buffers. I tried to find a way to increase them, but the only option seems to be using PlatformIO with VS Code, and I wasn’t able to configure it with all the libraries I need (on the Mac M3).

This could be a known problem, so I’m looking for any tips on how to solve it, if it is indeed related to Ethernet buffering.

Thanks.

Jared

I tested OLIMEX ESP32-POE-ISO today: a little bit more stable, but the device got disconnected after 1-2 minutes (while receiving MIDI) and reported dropped events.