---
title: "[From QnA]Unable to correctly read some Socket"
url: "https://maker.wiznet.io/forum/9546"
markdown_url: "https://maker.wiznet.io/forum/9546/md"
type: "Forum topic"
category: "IO Modules"
author: "wiznetmuseum"
created: "2013-09-23T08:30:40+09:00"
last_activity: "2017-05-04T08:29:59+09:00"
language: "en"
views: 632
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# [From QnA]Unable to correctly read some Socket

## Question

Asked by wiznetmuseum on 2013-09-23 in IO Modules.

We are using the Wiz810MJ module using a SPI i/f. Whereas the initialisation appears to be OK ( ping to the module over a LAN works), when we try to read the Socket 0 registers, we are able to only read some of the registers correctly. Registers like Destination Hardware Address, Destination IP Address return the reset value, even though we have set them to non-zero value.

Strangely, however, some of the Socket 0 registers return correct value ( like the Mode 0 register, Source Port number ).

Any hints for us to debug further ?

Regards,

Jagdish

## Replies

### Reply 1 by wiznetmuseum, 2013-09-23

Dear customer,

Thanks for your interest in w5100.

What is write correct value in Socket 0 register?

Are you offer the opcode(0xF0)+Address(2byte)+data(1byte) in regular sequence?

Thanks,

WIZnet

---

Source: https://maker.wiznet.io/forum/9546