Writing to T2T in sdk 17.0.2

[T IJ]

Hello DevZone,

A product I use uses NFC tag type 2 to communicate. It usually communicates to a separate chip but I want to replace this with the nRF52832.

I opened a project that uses nfc_t2t, the nfc_text_record_pca10040 to be exact.

I can see that my device is able to communicate with the nRF52832, but when it requests a different block of data, the nRF only sends the first user block.

I have read from a thread that a write handler has to be written because the library doesn't use this functionally.

https://devzone.nordicsemi.com/f/nordic-q-a/11492/nrf52-write-nfc-tag

I see that the person uses hal_nfc_t2t as a method to interface with the NFC peripheral but I cannot find this in SDK 17.0.2. Is this removed?

I must say that my knowledge of writing my own t2t write function is minimum so hopefully I can get some more information from here.

Is is possible to add the write function to the nfc_text_record_pca10040?

Kind regards.

[Jared]

Hi,

Newer versions of the SDK use the NFCT driver instead of the NFCT HAL modules. I suggest using Pre SDK 15.3.0 if you want to modify the HAL module.

regards

Jared 

[T IJ]

I will have to use the nrfx_nfct instead of reverting to an older SDK.

Are there any examples on how to use?

Kind regards

[Jared]

Hi there,

Unfortunately, the SDK does not show the NFCT driver implementation, it instead use a pre compiled lib. Which is another reason for using a pre SDK 15.3.0 if you're going to customize the driver. You could try to port the driver to a later SDK after you're done customizing it. 

regards

Jared