nrf52 NFC read code size limit

[embeddedninja]

Hi, I would like to understand what is the maximum data size that can be stored in memory and read by an NFC reader?

Thanks!

[endnode]

Well nRF52 should be implementing ISO14443 TypeA (Part1-3) front-end so you should be able to transport pretty much any number of bytes over it. On the other side flash storage on nRF52 is 512kB (or 256kB on smaller variant) so you can store data there independently on NFC or other peripheral. If you are interested into some specific configuration restricting flash usage (e.g. you want to have specific BLE stack aka SoftDevice loaded + NFC "stack/library" + application code) then simply get their size from particular binary or documentation and subtract from 512 or 256kB of total space available.

Cheers Jan

[bjorn-spockeli]

@embeddedninja : Or did you mean ow many bytes you can read in one transaction?