Intergrate W5500 with an nRF54L15DK

RE: Intergrate W5500 with an nRF54L15DK

Simonr — Thu, 29 Jan 2026 14:02:09 GMT

Glad to hear that Tim! Do you have any further questions or can we close this ticket now?

Best regards,

Simon

RE: Intergrate W5500 with an nRF54L15DK

Timothy01 — Thu, 29 Jan 2026 10:14:11 GMT

Thank you for the reply. As far as the W5500 I am using, it's uses 3.3V working power. I set up the board in the nRF connect for desktop to supply 3.3 V to Vdd. I also used the SPI set up called out in the nRF connect SDK intermediate lesson 5 exersice 1 from DevAcademy. My SPI interface is now up and I can ping the device.

Thanks,

Tim

RE: Intergrate W5500 with an nRF54L15DK

Simonr — Tue, 27 Jan 2026 12:43:34 GMT

It seems like you're using P2.03 for an int GPIO in your WIZNET overlay. This one is connected to SPI and not the P2 header on the nRF54L15 DK. You need to use the board configurator app to disable the external flash.

Additionally, I don't know the specifics of this module, but what voltage does the WIZNET run on?

For the warning, the configuration option DT_HAS_WIZNET_W5500_ENABLED is not user-configurable. This means that you cannot set this configuration yourself. It can only be configured internally, for example, by other configuration options or devicetree. In this case, it is set by W5500 being enabled in devicetree. Remove this from prj.conf, and the error will disappear.

Best regards,

Simon