nRF52832 as writable NFC tag 2. Is it possible?

[Leoni]

Hello dear

I have a question about NFC on RF52832. On section 42 of datasheet, says:

"The NFCT peripheral (referred to as the 'NFC peripheral' from now on) supports communication signal type A and 106 kbps bit rate from the NFC Forum. With appropriate software, the NFC peripheral can be used to emulate the NFC- A as specified by the NFC Forum. Listed here are the main features for the NFC peripheral:

• NFC-A listen mode operation

• 13.56 MHz input frequency

• Bit rate 106 kbps

• Wake-on-field low power field detection (SENSE) mode

• Frame assemble and disassemble for the NFC-A frames specified by the NFC Forum

• Programmable frame timing controller

• Integrated automatic collision resolution, CRC and parity functions "

However on some posts about NFC on devzone, I understood that hardware is compatible with writable NFC tag, but the library on sdk does not support this feature. This is correct? Some one implemented it?

[Jørgen Holmefjord]

Hi,

It is correct that the NFCT hardware of nRF52832 support writing, and that this is not implemented in the NFC Type 2 tag library. It is however implemented in the NFC Type 4 tag library. Here is an example. Do you require type 2 tag, or is type 4 OK?

Best regards,
Jørgen

[Leoni]

Hello  Jorgen, thanks for reply, 

I think tag 4 is ok, because it implements 14443 A and B type. 

Best regards.