NFC中的主题 How to pull FD pin of NT3H2211 to high using android code?

How to pull FD pin of NT3H2211 to high using android code?

yl16017 — Thu, 17 Oct 2019 22:52:44 GMT

I am doing a project using this Ntag as a interface with my phone app and microchip. I would like to use the PD high to notify the microchip that the data is ready. My current code read the tag every 100ms to check data but seems like the data could not be written in when the microchip is reading the tag. How can I pull Field Detection pin high after each data I wrote with my android app? Or is there any other ways of doing that?

Re: How to pull FD pin of NT3H2211 to high using android code?

IvanRuiz — Fri, 18 Oct 2019 15:54:17 GMT

Hello,

The FD_ON is available in Configuration bytes, in which it can be defined the event upon which the FD pin is pulled low. Please refer to table 13 for more information about this: https://www.nxp.com/docs/en/data-sheet/NT3H2111_2211.pdf

Hope this helps.

BR,

Ivan.