CODEWITHSUNDEEP
androidnfchostemulationhce
Vny Kumar
Vny Kumar

Reputation: 758

Tags supported by Android HCE

I am trying to emulate Android NFC using my Nexus 4 device as part of a Host Card Emulation demo. I want to know if all of the NFC Tags are supported by HCE or just specific tags?

Is ISO-DEP just an example, or is it the only one that works?

Upvotes: 1

Views: 2455

Answers (2)

Nikolay Elenkov
Nikolay Elenkov

Reputation: 52956

Reading the documentation usually helps:

Specifically, Android 4.4 supports emulating cards that are based on the NFC-Forum ISO-DEP specification (based on ISO/IEC 14443-4) and process Application Protocol Data Units (APDUs) as defined in the ISO/IEC 7816-4 specification. Android mandates emulating ISO-DEP only on top of the Nfc-A (ISO/IEC 14443-3 Type A) technology. Support for Nfc-B (ISO/IEC 14443-4 Type B) technology is optional. The layering of all these specifications is shown in the figure 3.

Upvotes: 3

Trung
Trung

Reputation: 1655

If a tag supports ISO-DEP/7816-4, then you can use HCE. If a tag supports NfcA or NfcB only, it won't work. Check the TagTechnology support list.

  1. Contactless credit card uses ISO-DEP/7816-4.

  2. NFC Type 4 Mifare DesFire also uses ISO-DEP/7816-4. You can use HCE to talk to it. However, using NDEF is much more practical. ISO-DEP simply wraps low level Mifare command; much more harder to use.

Upvotes: 0

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