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PN7462AU NFC Reader/Writer ↔ Android HCE App Communication

Question asked by Haje Lee on Feb 14, 2020
Latest reply on Feb 19, 2020 by Haje Lee

Good day, 

 

I tried to transfer/receive NFC data between NFC Reader/Writer and NFC Tag, but it is not working well. If you know the answer to the question, please answer. 

Below is the setup details,
1. Hardware: PN7462AU
2. SDK: PN7462AU-FW_v05.21.00
3. IDE: MCUXpresso IDE v11.0.0

 

NFC Reader/Writer's specific setting is below,

 - Hardware : PN7462AU

 - Used SDK example : PN7462AU_ex_phExMain

 - NFC Mode : R/W

 - NFC Type : Type 4A

 

NFC Tag's specific setting is below,

 - Hardware : General Android phone (I'm using Samsung Galaxy S10)

 - NFC Mode : Host Card Emulation (HCE)

 - NFC Type : Type 4A

 

I made Android application operating HCE mode, and tagging with NFC Reader/Writer. But It's not working. NFC Reader/Writer cannot recognize the App in HCE mode. App's operation is successful. I tested my HCE App with the other android reader App.

 

Question 1) How can the NFC Reader/Writer recognize the App in HCE mode?

Question 2) Is it correct to use the phExMain example to communicate with Android in HCE mode?

  - If the answer is yes, how do I implement a program?

  - If the answer is no, which SDK example should I build on? Is there an SDK that I can reference in my implementation?

 

Before I made android HCE App, I tried to make NFC Tag with the other PN7462AU using NfcrdlibEx8_HCE_T4T SDK. HCE_T4T means HCE Mode Type 4A Tag. In short, Good communication between NFC Reader/Writer using PN7462AU_ex_phExMain and NFC Tag using NfcrdlibEx8_HCE_T4T. However, if I change the HCE mode app , it does not become recognition itself. 

Question 3) Does the HCE_T4T example really work in HCE mode? 

 

This is main question

Question 4) How should the PN7462AU(NFC Reader/Writer) and Android(NFC Tag with HCE mode) communicate with NFC?

 

If anyone knows the answer to your question, please reply.

If you have any question, please feel free to contact me.

 

Thanks.

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