Hey evryOne!
How about wiegand protocol? Did some search with my web archive engine and there is lot of info available out there;-) But I could not understand how a MCU and RS232 can communicate over this protocol? I mean that there are tow data lines representing '0' and '1' in wiegand, where as normally dealing with RS232 we use MAX232 line driver's tow pins that are Rx, and TX for receiving and transmitting respectively. Though there are extra tow Rx and Tx available on line driver (MAX232) but still can't figure out how to do that? And finally is it that worthy (fast) then direct UART or SPI?
Hey! Is there any thing that Intel guys have developed for communication over a single line? heard from some one but don't kow about that;-)
ali