nRF52 edit nfc tag

RE: nRF52 edit nfc tag

viya0414 — Thu, 30 Nov 2017 07:33:51 GMT

The nRF52 is capable of supporting write, and it is possible to implement it.

RE: nRF52 edit nfc tag

Luke — Thu, 01 Sep 2016 14:24:00 GMT

I am also interested in writing to the nRF52. Can you please provide some more details? where do I have to check for the write request?

RE: nRF52 edit nfc tag

JeanaPerry — Mon, 29 Aug 2016 17:53:40 GMT

Hi....The library in the SDK is read only, so you what you can do is to define the data in your application and a polling device can read it. The nRF52 is capable of supporting write, and it is possible to implement it. However, read only supports the majority of the use cases and avoiding writes save quite a bit of the flash memory.

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RE: nRF52 edit nfc tag

Tim — Mon, 29 Aug 2016 12:43:59 GMT

Thansk for the response,

I already solved this issue. I changed the lock bytes and write protect bytes. By setting these location to 0x00 and 0x0000.

#define LOCK (*(uint16_t volatile *)(0x2000220A))
#define WRITEPROTECT (*(uint8_t volatile *)(0x2000220F))

And by checking if its a write request

if (m_nfc_rx_buffer[0] == 0xA2)

Then by using the function:

const char ack = 0x0A;
hal_nfc_send(&ack,1);

To send a response.

Kind regards,

Tim Smits

RE: nRF52 edit nfc tag

bjorn-spockeli — Mon, 29 Aug 2016 12:24:16 GMT

Hi Tim,

the NFTC peripheral is read-only due to missing software in the SDK, please see this answer.

-Bjørn