---
title: "W55RP20 SPI INT NOT GETTING TRIGGERED IN S2E"
url: "https://maker.wiznet.io/forum/16126"
markdown_url: "https://maker.wiznet.io/forum/16126/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "sramakrishnas"
created: "2026-07-25T17:36:22+09:00"
last_activity: "2026-07-27T09:06:07+09:00"
language: "en"
tags: ["W55RP20"]
views: 5
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# W55RP20 SPI INT NOT GETTING TRIGGERED IN S2E

## Question

Asked by sramakrishnas on 2026-07-25 in Serial-to-Ethernet & ConfigTool.

I am using W55PR20 EVB BOARD CONNECTED TO MCU AND USING SPI INTERFACE TO CONNECT TO W55PRO. USING STANDARD S2E RELEASE 1.23 FROM WEBSITE. i am able to see DEBUG MESSAGE COMING PROPERLY TO W55PR20 and the same is not coming to SPI. All options are explored , seeing SPI INT not getting triggered at all. Need hlep.

## Replies

### Reply 1 by mason, 2026-07-27

Hello,

We have responded to the same inquiry on the GitHub issue below:

<https://github.com/WIZnet-ioNIC/W55RP20-S2E/issues/9>

Please check the response and verify the suggested configuration.

If you have any additional questions or the issue persists, please contact us at mason@wiznet.io.

Thank you.

---

Source: https://maker.wiznet.io/forum/16126