Programovani HCS500

[Petr Zahradnik]

Puvodni zprava ze dne 16.11.2005:

> - JAK spocitat ten sifrovaci klic???

Jinak, ted jsem se na to podival poradne, takze v pripade SIMPLE LEARN
rezimu je sifrovaci klic totozny s vyrobnim klicem, tj. plati:

64-bit manufacturer's code = encryption key

V pripade NORMAL LEARN rezimu je to pomoci funkce Decrypt nebo XOR a
to takto v pripade XOR:

hornich 32 bitu encryption key =
64-bit manufacturer's code
XOR
0x02 + 28-bit serial number

spodnich 32 bitu encryption key =
64-bit manufacturer's code
XOR
0x06 + 28-bit serial number

Blizsi info najdes napriklad v tomto Application Note:

http://ww1.microchip.com/downloads/en/AppNotes/00217a.pdf

a mas tam rovnou i kod pro PIC, ktery ti ten encoder naprogramuje...

Petr Zahradnik, pocitacovy expert

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