Hi all ...

I'm working with AT89C55WD mcu which has to integrate with mifare card reader(Dual Eye).

Right now my prog can do task like authenticate ,read ,write etc

so there's a doubt about difference between mifare card type A and type B, one info that i found says :

"Type A (air interface, anti-collision and
initialisation as for Mifare, i.e. under licence from Philips) and Type B
(different air interface, anti-collision and initialisation, designed in an
open manner, i.e. no licence required)"


so can anyone please give some more info about that

thanks in advance

Parif