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adafruit / Adafruit_nRF52_Arduino

Adafruit code for the Nordic nRF52 BLE SoC on Arduino
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NFC not working using your NFC examples and then stops working altogether #757

Closed Gerriko closed 1 year ago

Gerriko commented 1 year ago

Operating System

Linux

IDE version

Arduino 1.8.16

Board

nRF8240-DK and nRF52840 Xenon board

BSP version

github latest

Sketch

NFC SendText example (I see it is no longer in the repository?)

What happened ?

I flashed my 2 boards using the appropriate 0.7.0 bootloaders as found here: https://github.com/adafruit/Adafruit_nRF52_Bootloader/releases

In Arduino IDE I then selected the board either as "Nordic nRF52840 DK" or "Particle Xenon".

I then used the NFC example "SendText".

But nothing happens. The phone does not detect the antenna attached to either board.

Now, more worrying for me is that if I then flash these boards with a working example from the nRF52 SDK using my Segger JLink via Segger Embedded Studio, none of the NFC examples work when they all worked perfectly beforehand.

I cannot work out what has gone wrong.

Thanks

How to reproduce ?

As described above.

Debug Log

No response

Screenshots

No response

hathach commented 1 year ago

NFC is probably converted to gpio purpose by the sketch/bootloader, try to do opposite for this sketch https://github.com/adafruit/Adafruit_nRF52_Arduino/blob/master/libraries/Bluefruit52Lib/examples/Hardware/nfc_to_gpio/nfc_to_gpio.ino