---
title: "Huge size of Boot WIZ550S2E"
url: "https://maker.wiznet.io/forum/11163"
markdown_url: "https://maker.wiznet.io/forum/11163/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "MrBool"
created: "2015-07-08T07:54:31+09:00"
last_activity: "2017-05-04T08:36:18+09:00"
language: "en"
views: 568
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# Huge size of Boot WIZ550S2E

## Question

Asked by MrBool on 2015-07-08 in Serial-to-Ethernet & ConfigTool.

The bin file of Bootloader for WIZ550S2E is very big - almost 24kB (Release, -Os). I remember that when I created bootloader for Cortex-M3 microcontroller it use only few kB - including uIP stack. I use also TFPT protocol. How can I reduce Bootloader size?

## Replies

### Reply 1 by Ricky, 2015-07-09

Hi. MrBool

i am working on your request…I will get back with the result soon : )

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Source: https://maker.wiznet.io/forum/11163