I'm experimenting with audi key, cloning a pcf7947 + EppExt.
The Software part is already controlled.
But now I have a problem, the Audi Key works on FSK and 868Mhz, you have to transform it to 434Mhz and ASK.
The part of 434Mhz I have also solved by changing the IC T5754 / 434Mhz, for the original that is a T5750 / 868.
And changing the value of a capacitor in the part of the transmitting antenna.
So here it all seems fine. I just need to change the modulation, from FSK to ASK.
* The question .. This configuration must be done in Erom? Or in physical component IC (capacitor and resistance) as indicated by the datshell ???
* I include IMG and DATA, if anyone can give me light.
This work is only experience, excuse my bad English and do not know Russian.
Video : https://youtu.be/mY9yiOqods8