Posted on February 17, 2015 at 09:49Hello, I can't get either read or write (over I2C) to work correct. If I write the text ''Hello World!!'' from the phone (S3) and then read it over the I2C I get the following error. When I read the length it says...
Posted on January 19, 2015 at 06:55Dear Sirs: We are using M24SR64. Now we met a problem with NDEF File Length in 36 bytes. Problem: 1. If the NDEF File Length is 36 bytes, it can not be a successful data in Android OS or NXP TagInfo app or NFC TagI...
Posted on October 06, 2014 at 17:34Hello,I'm having trouble writing an NDEF message to the M24SR (with 8KB EEPROM) via i2c.I am able to correctly write an NDEF Text Message via the official M24SR Android app.I am able to correctly read the NDEF File...
Posted on January 23, 2014 at 15:38Hello 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 i...
Posted on February 24, 2014 at 17:02Hi all,I can see in the documentation the command ''Lock Sector'' and used in the android demo application but I cannot figure how to unlock a sector. Using the application, I have changed the first password and l...
Posted on August 29, 2014 at 16:55Hello,I'm having trouble calculating the CRC when sending and receiving bytes via i2c from the M24SR.I've tried following the example on page 29 from the application note on storing data in the NDEF memory(http://ww...
Posted on July 01, 2013 at 12:10Hej! I just bought a DEMO-CR95HF board to sort out EMI problems that I have with my own design with the CR95HF chip. To my disappointment the DEMO board generates more harmonics than my own design. My measurements can...
Posted on July 09, 2014 at 20:43I want to work with the RF transceiver Demonstration Board code and I have found it at this link:http://www.st.com/web/en/catalog/tools/PF257512 However, as far as I can tell, there is only a version of the project bu...
Posted on July 02, 2014 at 16:29Hello I want to build a reader to communicate with ISO14443A and ISO15693 tags using the CR95HF transceiver IC. I build a 2 turn PCB antenna and calculated the matching of the PCB antenna according to AN4327 and the ...
Posted on June 19, 2014 at 15:01Hi,I have two applications one for the Calibration of CR95HF and one for Tag detection. Before running the Tag detection application Calibration is done and the DAC ref value obtained is saved in a file. The Tag detec...