ST25R3911 bidirectional communication with active P2P

[Christiane]

Hello,
my goal is a bidirectional communication between two S25B3911 with active P2P mode.

Currently I use two bluepill boards for the SPI connection. The final platform was not decided yet. But it is not wished to integrate a large library into the final product.
The result should be a lean code.

Which registers must be set with wich values to activate?
Which commands must be sent?
Which interrups need to be monitored?
Which registers must be read for a proper timing?
Does an order have to be followed for setting the registers and sending the commands?

Regards
Christiane

[Ulysses HERNIOSUS · Accepted solution]

Hi,

I can only offer that you go and analyze the ap2p_proporietary application which is part of ST25 Embedded NFC lib.

You can then try to either tailor it or rebuild by observing the SPI trace and doing your own driver.

BR, Ulysses