...and fwiw AN2598 looks comprehensive. Better than what I had for atmel parts.
On Tue, Jul 19, 2016 at 3:58 AM, Richard Lamb <sl...@xtcn.com> wrote: > From my rudimentary experience in writing smartcard driver/hw for some > atmel chips i found the usart must support iso7816 (half duplex so just one > pin) and the need for a gpio pin for rst and/or power control for the card > and a gpio for the card inserted switch on the carrier. I also experienced > the need for a reasonable size capacitor to minimize the effects of > inserting/removing cards on any shared 3-5V PS line on the rest of my > circuitry. FWIW, I used ACOS3 cards that have a easy to find spec for r/w > memory...but even simpler would be nice. -Rick > > > On Tue, Jul 19, 2016 at 1:35 AM, Jakob Schlyter <ja...@kirei.se> wrote: > >> In Berlin, we've been talking about how to use smart cards for >> reading/writing m-of-n components independent of the management host. The >> rough consensus was that plain memory smart cards as data carriers would be >> easy to use and present a reasonable interface to the ARM. Alternatives >> would be USB or punch cards, but seems to either add more attack surface or >> require ancient hardware. >> >> In order to be able to experiment more with this, we need two additional >> UARTs on the next hw rev board. One for connecting to a smart card reader >> (the rest of the required stuff is apparently already in the ARM) and one >> for a future LCD/keypad. As far as I understand, no other hardware (except >> for the actual reader/LCD/keypad) should be needed, and I hope Peter Stuge >> can confirm this. >> >> jakob >> _______________________________________________ >> Tech mailing list >> Tech@cryptech.is >> https://lists.cryptech.is/listinfo/tech >> > >
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