Arturo Ruiz

NTAG23xF FD pin is not changing level when RF-field is present.

Discussion created by Arturo Ruiz on Oct 10, 2017
Latest reply on Oct 13, 2017 by IvanRuiz

Hello, It's my first time working with NFC technology and I'm trying to use the FD-pin on a NTAG213F to send data to a microcontroller. At least use the signal transition to wake up the microcontroller from a sleep state. I understood from the datasheet that the FD pin has a default value configuration of 11b which means that by default the pin should make a transition when a reader/writer (e.g. smartphone) interacts with the tag. I doubled checked my circuit and everything should be working fine. But the FD pins seems to have no response. Am I missing something? Do I have to configure de FDP CONF bits to a different mode? If so how am I supposed to do so? I mean, is there any kind of interface to configure the ntags or change their default values?? 

I'm new working with ntags and NFC technology any help will be really appreciated. 


#Ntag213f #NTAG216F field detection