---
title: "W7500 change baud-rate at runtime"
url: "https://maker.wiznet.io/forum/14184"
markdown_url: "https://maker.wiznet.io/forum/14184/md"
type: "Forum topic"
category: "MCU & Boards"
author: "Rehbeck"
created: "2021-03-10T14:53:37+09:00"
last_activity: "2021-03-15T22:25:00+09:00"
language: "en"
views: 447
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# W7500 change baud-rate at runtime

## Question

Asked by Rehbeck on 2021-03-10 in MCU & Boards.

Hi,
i need help with a problem.
I have a program that wants to change the baud rate during runtime. The program runs on a Windows PC, where WIZ VSP Ver2.0.2 is also running. The computer is connected to a WIZ750SR via Ethernet. The WIZ VSP program also shows the change, but the WIZ750SR block does not implement the change. Is there a special procedure for this case?
We cannot reprogram the program that wants to make the change.
Thank you

## Replies

### Reply 1 by irina, 2021-03-15

As far as I know, WIZ750SR can’t change the setting value during runtime.
Just you can change the setting value the using Serial command.
In that state, the TCP/UDP operation is closed.

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Source: https://maker.wiznet.io/forum/14184