Posted on January 23, 2014 at 12:04Hello Everyone,
I have the same request than ramirez_prieto.valen, I'm looking for an I2C routine in order to write an NDEF message in a M24LR04 tag, but I haven't foud anything about that. Obviously the AN3408 is important for understand NDEF MESSAGE structure, however It's would be very interesting to have an I2C routine. I've tried to write this routine but It seems to be wrong and since 3 days I have tried to debug it.
I don't know for example if the CC field his automatically set or if it's defined by the user, furthermore I don't know how to manage user memory area when there is already a previous NDEF message. there are not informations concerning these issues.
An example would be very nice
From: NFC/RFID Dynamic Tag Support
Posted: Tuesday, December 10, 2013 10:42 AM
Subject: Is possible to use M24LR04E for sending NDEF messages?
Hello,
Yes it is possible to use M24LR04E for sending a NDEF message
(intended to read it from a mobile, for making pairing operations, etc..)
You have an application note that explains how to do it.
http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00029842.pdf
With
M24LR : ISO 15693 , some smartphones as Galaxy S4 support natively the NDEF inside the M24LR so you dont need to develop any application. With most of ISO 15693 compatible phones, you need to develop an application.
We provide the source code of our application : NfcV-Reader available on Google play :
http://www.st.com/web/en/catalog/tools/PF257517
You can place sample order through disty.
I hope this is helping,
Have a nice day,
ST NFC/RFID Dynamic tag support
From: ramirez_prieto.valen
Posted: Tuesday, December 03, 2013 2:07 PM
Subject: Is possible to use M24LR04E for sending NDEF messages?
Hello,
Is possible to use M24LR04E for sending a NDEF message? (intended to read it from a mobile, for making pairing operations, etc..)
Please, is there any example of code, about how publishing an NDEF message in the antenna, using I2C bus?
If not.... please, why not? and what kind of chip could I use?
Is M24SR02-Y chip the right one? I read that it is still on evaluation process... and not for sale.
Thanks in advance,
