Recommendations for Arduino form factor hardware for NFC reader evaluation

[MBlac.2]

I wanted to use one of the X-NUCLEO NFC reader shields.

I have the X-NUCLEO-NFC05A1 (ST25R3911), the X-NUCLEO-NFC03A1 (ST25R3916) and the NUCLEO-F303RE.

I was hoping there would be an easy was to integrate the RFAL with an existing SPI example project. I ran into some difficulty remapping the I/O pins, since the SPI example project used different pins on the NUCLEO-F303RE than what the X-NUCLEO-NFC05A1 (and presumably the X-NUCLEO-NFC03A1) uses. I'm not that familiar with the STM processors, so I decided to switch to using a different base board I am more familiar with.

What I would like is an example project for using one of these Arduino shield and that uses an easily obtainable base board.

[Brian TIDAL · Accepted solution]

Hi,

X-NUCLEO-NFC05A1 and X-NUCLEO-NFC03A1 are both using D13/12/11/10 for the SPI communication. On NUCLEO-F303RE (as well as on NUCLEO-L476RG used as reference in the various packages), D13/12/11 are mapped to PA5/PA6/PA7 which correspond to SPI1.

So what you need is basically to configure the NUCLEO-F303RE to use SPI1, to configure PB6 as GPIO for software CS on SPI1 and PA0 as EXTI0 for the interrupt.

If you want to use ready to run projects, I would recommand to buy a NUCLEO-L476RG and to use the ST25 embedded NFC library.

Additionally, you can have a look on https://github.com/stm32duino/NFC-RFAL

Rgds

BT