PNEV5180 multi card detecting problem

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PNEV5180 multi card detecting problem

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lim
Contributor II

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

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danielchen
NXP TechSupport
NXP TechSupport

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. 

danielchen_0-1642520865425.png

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...

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

 

Regards

Daniel

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