PNEV5180 multi card detecting problem

lim — Wed, 12 Jan 2022 06:01:59 GMT

Hi NXP

Now we debugging a project(NfcrdlibEx3_NFCForum)with a PNEV5180B

it's quite working NFC card detecting

but when we did multicard detecting, PNEV5180 just detect only one card

so we made a break point at there

" DEBUG_PRINTF (" \n Multiple technology detected: \n");"

doesn't enter that part

so do you have any sollutions ?

thank you

Re: PNEV5180 multi card detecting problem

danielchen — Tue, 18 Jan 2022 15:51:18 GMT

Hi @lim :

The default behavior of this demo, NFC Forum mode, whenever multiple technologies are detected, example will select first detected technology to resolve. Example will activate device at index zero whenever multiple device is detected.

There are two macros in phacDiscLoop.h defined the maximum cards supported per technologies in passive poll mode. users can change this value to support more cards.

I would recommend to see the following community document for a proper implementation of reading reading more that one tag:

Activating multiple Tags using NFC Reader Library

https://community.nxp.com/t5/NFC-Knowledge-Base/Activating-multiple-Tags-using-NFC-Reader-Library/ta-p/1111941

The document is for PN7462, you can take it as a reference.

Regards

Daniel

topic PNEV5180 multi card detecting problem in Wireless MCU

PNEV5180 multi card detecting problem

Re: PNEV5180 multi card detecting problem