How to use silvercard ??

How to use silvercard

I can't find oscilator circuit for silvercard

Hello Darkman,

D>>How to use silvercard

I can't find oscilator circuit for silvercard<<

I may not fully understand your question, but your PIC chip in your circuit is probably using a internal Oscillator...thus no Crystals are seen in the schematic.

Dwayne

Pin 9 on the 16F876 is the clock input. It looks like they've connected it to RB6 which is the programmingclock. You need to supply a clock from an external source to the "RB6" pad. Don't forget to configure the pic for HS, XT or LP.

Quote:

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Originally Posted by Dwayne

...your PIC chip in your circuit is probably using a internal Oscillator...

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Dwayne,
this must be a very special version of the 16F867then, 'cause the standard ones don't have any internal Oscillator circuitry ;-)

More likely the schematic has been reduced to the absolute minimum.
(Connections to the EEPROM and ChipCard Header)

These cards are used in the Digital SAT TV decoders.
The silvercard.gif attached to the post of the user
Darkman is the schematic inside the card.
The clock comes from the Digital SAT TV decoder
when the card is inserted in the card slot.

You need a Smart Card when the TV program is
encrypted. The EEprom is used to store the keys.

Example:
http://www.francoelettronica.it/ISO_7816.htm

Luciano

Hello Ralph,

Ralph>>this must be a very special version of the 16F867then, 'cause the standard ones don't have any internal Oscillator circuitry ;-)<<

I thought all the 16F's had internal clocks.... Oh well... at least all the 16F's that I use anyhow :=}

Ralph>>More likely the schematic has been reduced to the absolute minimum.
(Connections to the EEPROM and ChipCard Header)<<

Yeah... It does look a little on the absent side of "equipment" to make a full gadget that one could use.

Dwayne