---
title: "WizFi210 Firmware 1.1.1.0 O & F"
url: "https://maker.wiznet.io/forum/9990"
markdown_url: "https://maker.wiznet.io/forum/9990/md"
type: "Forum topic"
category: "Wireless"
author: "bgrieve"
created: "2014-02-26T17:50:39+09:00"
last_activity: "2017-05-04T08:31:38+09:00"
language: "en"
views: 521
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# WizFi210 Firmware 1.1.1.0 O & F

## Question

Asked by bgrieve on 2014-02-26 in Wireless.

We have been producing our products using WizFi210 firmware level 1.1.0.5 for some years. We recently received a shipment of WizFi210 comprising a mixture of firmware 1.1.0.5 and 1.1.1.0. Our products continue to function with
1.1.0.5 but fail with firmware 1.1.1.0. Our implementation uses multiple sockets with a mixture of UDP and TCP.

We determined that 1.1.1.0 does not return O or F in response to sending data using escape sequences.

Section 4.3.2.1 of WizFi210 Programmers Guide Version 1.3 omits response O and F when sending using escape sequences.

Section 4.3.2.2 of WizFi210 Programmers Guide Version 1.3 declares that response O and F is sent to serial
host when receiving using escape sequences. This is not logical and exactly the compliment of behaviour of firmware
revision 1.1.0.5.

Is this a simple error in documentation?

Or does 1.1.1.0 in fact not return O and F when sending using escape sequences?

It appears that this is the case.

Is there a configuration command that will cause 1.1.1.0 to return O and F in response to sending using escape sequences? Our product firmware is expecting these responses from WizFi210.

## Replies

### Reply 1 by ssekim, 2014-02-26

Yes, you’re right.
<1.1.0.5 f/w> returns O or F, but <1.1.1.0 f/w> doesn’t return them.

Please refer to the below link.
[url][http://wiznet.co.kr/Sub_Modules/en/product/product_detail.asp?Refid=730&page=1&cate1=&cate2=&cate3=&pid=1132&cType=2\[/url\]](http://wiznet.co.kr/Sub_Modules/en/product/product_detail.asp?Refid=730&page=1&cate1=&cate2=&cate3=&pid=1132&cType=2%5B/url%5D)

And, there is no way to enable O/F.

---

Source: https://maker.wiznet.io/forum/9990