my own w5500 ethernet pcb with esp32-wroom-32e

brekbrek
Posts: 1
Joined: Thu Jan 29, 2026 5:00 am

my own w5500 ethernet pcb with esp32-wroom-32e

Postby brekbrek » Thu Jan 29, 2026 5:11 am

Hi All,

I designed my own w5500 ethernet PCB with esp32-wroom-32e but it is not working and i don't know why. I checked a lot of different designs and all are similar. I don't use AVDD and AGND so i removed ferrit beads and connect to directly 3V3 and GND.
When I power on the pcb, RJ45 connector green LED always on. There is no blinking when i connect cable or unplug cable. I try to connect modem but I don't. There is no connection when i check modem interface.
Esp32 SPI pins are; SCK:IO18, MISO:IO19, MOSI:IO23, CS:5, RST:33. So anyone get this issue?
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Sprite
Espressif staff
Espressif staff
Posts: 10609
Joined: Thu Nov 26, 2015 4:08 am

Re: my own w5500 ethernet pcb with esp32-wroom-32e

Postby Sprite » Fri Jan 30, 2026 3:29 am

- Do you see Y1 oscillating?
- What software did you load on the ESP32? What do the logs say?

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