piero de salvia wrote: > Card manufacturers charge an arm and a leg even for simple memory cards, > and for Java Cards we are talking upwards of 20 euros. What am i > supposed to charge when reselling it? 100 euros for one card?
I have heard of some cards for sale on EBay. I think these were low spec atmel cards but don't quote me. I think it was mentioned on the muscle mailing list. > > But I couldn't found a mini-OS for the atmel anywhere. > > Do you know of one? I couldn't find one if my life depended on it! I > couldn't even find something that would do simple functions for a card, > let alone the rest. We (that's the card guys, not me - I do terminal stuff) have our own OS for the Atmel. I did read the following on the Muscle mailing list recently which may be of use to you: =The risc cards as Jim calls them are sold on the Internet as "Purple =Fun =Cards" or "Purple Cards" or "Fun Cards". I saw some on ebay yesterday. =You can buy them in small quantities. I bought 2 but I forget the =price. = =They are built on the ATMEL AT90S8515 processor and some amount of =serial EEPROM. The site I bought them from includes a simple schematic =indicating which ports are hooked up to what on the cards. = =There is a GCC port for the 8515 processor. The processor line is =called 'AVR'. There are Debian packages for the GCC port called =avr-gcc. You can get detailed info on the processor and development =tools at http://www.atmel.com and http://www.avrfreaks.net. =AVRFreaks.net has a Windows port of the AVR-GCC package. = =From what I've seen so far, the AVR line is very nice. It's fast and =the instruction set is simple and easy to use. = =The processors can be programed through a serial protocol detailed in =the data sheets. The FunCards can be programmed using this same =interface. The correct pins are connected to the ISO7816 pads to do =this. I've seen devices for sale that are capable of programming these =cards. They are usually sold on the satellite tv cracker websites and =refered to as 'smart card programmers'. Some even say they can program =ATMEL chips. You could also build your own programmer hardware as the =circuits to do the programming are very simple. See the AVRFreaks =website for details on building serial programmers. = =The down-side as I see it for using these cards are that you have a =bare =microcontroller. There are no libraries for ISO protocols. You need to =implement everything from scratch, even the serial protocol must be =written. As I recall the AVR's built-in UART isn't even connected to =the ISO pads so you need to bit-bang the ISO serial protocol. Doable =but not simple. = =The upside is the uC is high-performance, the tools are cheap/free and =easy to setup. This came from a thread that started here http://archives.neohapsis.com/archives/dev/muscle/2002-q3/0002.html cheers Brian > > At 11:35 AM 7/17/2002 +0100, Brian McGuiness wrote: > >> Harry wrote: >> >>> Has anyone ever managed to even get this thing to write data (towitoko >>> chipdrive and OCF (pc/sc))? >> >> >> I used a couple Towitoko chipdrive M100 and also the USB equivalent. >> >> I find them a bit slower at detecting inserts than some of the other >> readers I have used but other than that I have no problem with them. >> And yes I have written data to a variety of cards with them. Usually >> not Javacards, mainly Atmel chips running a proprietary app or Hitachi >> and Infineon chips running Multos with a file system app on. >> >>> I've managed to get the samples to detect insertion and removal of the >>> smart card, but I was never able to get it to write a simple text... I >>> just wanted to store "hello world" in the card... I have no idea where I >>> can store it, I don't even know if I have to specify a region on the >>> card... But I assume OCF takes of it. >> >> >> I think you are expecting too much from OCF here. >> >> You want to put "hello world" onto the card but unless there is an app >> on the card capable of storing data like that you won't be able to do it. >> >> If you've just bought a reader and some bare cards there is unlikely >> to be anything on the cards - think of it as you have just bought a >> new computer with a hard disk but there is no Operating system >> installed or applications loaded - what would you expect the PC to be >> able to do in that state? >> >> Have a look at the Sun site for their example Javacard app (I think it >> is a purse app) that >> >> will give you an idea of what you need on the card before you can >> start storing data on it. >> >> >> cheers >> Brian >> >> >> --- >> >>> Visit the OpenCard web site at http://www.opencard.org/ for more >>> information on OpenCard---binaries, source code, documents. >>> This list is being archived at http://www.opencard.org/archive/opencard/ >> >> >> ! 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If you are not the intended recipient you are hereby notified that any dissemination, distribution, or copying of this communication and its attachments is strictly prohibited. ------------------------------------------------------------------ --- > Visit the OpenCard web site at http://www.opencard.org/ for more > information on OpenCard---binaries, source code, documents. > This list is being archived at http://www.opencard.org/archive/opencard/ ! To unsubscribe from the [EMAIL PROTECTED] mailing list send an email ! to ! [EMAIL PROTECTED] ! containing the word ! unsubscribe ! in the body.
