Hi all,
i'd like to implement a simple ISO7816 smartcard reader/writer. i guess someone in this mailing list is more experienced with many other aspects other than written in the ISO doc ? so, anybody is experienced in designing a reader / writer ?
About any other standar (other than ISO7816), how can i implement them in software (using a microcontroller) ?
The hardware is not actually that difficult for a simple 5V ISO7816 smartcard. You can build the serial interface type based on what used to be called a Phoenix smartcard programmer. It uses a MAX232 TTL<>RS232 level converter, a 74HC04 hex inverter for the crystal oscillator and a 7407 for buffering on the dataline. A simple search on Google will throw up a lot of results. However I have reservations about this type of 5V design working well on the newer 3 Volts smartcards. It would require proper level conversions to work reliably.
The big part of any interface design is in getting the circuit to talk to the computer interface. The serial port is the most logical choice because of the pre-existing wealth of information out there. USB is possible but it does not quite have the same codebase and number of quick and nasty designs available. You could probably pick up a card reader for about €30 or so on the internet and it will probably work out cheaper unless you have the time, the hardware skills and the components to hand. (It is a lot easier to debug code only rather than having to worry if the interface is also buggy. ) There are probably a lot of very experienced people on this list who could advice you - I am only a newbie here.
Regards...jmcc
_______________________________________________ Muscle mailing list [EMAIL PROTECTED] http://lists.musclecard.com/mailman/listinfo/muscle
