I'm trying to interface an HEDS 9700 optical encoder using an HCTL-2020 IC (or anything else) with my Atmega ( atmega128, atmega32, atmega16, atmega8 or any AVR-family based microcontroller, don't matter for me ).
But I don't know what should I do. I read datasheets of both devices. What pins from HCTL must connected to my microcontroller (and which one ?) ? Basically, I don't know what to do with this encoder.
Please help me find out the way.