Hi, I tried finding a simple compact piece of code for a up/down counter working with the quadrature optical rotary encoder (HES-36-2MD).
The chip I use is a PIC18F2455. Connections are made (INT0=RB0, INT1=RB1) and tested with a multimeter giving pulses in the range of 0.04V to 4.85V.
I found this thread and also "The Book of DT's INTERRUPTS".
Lot's of info but to complex for me.

I have the same question as the above mentioned thread asked:
  1. is there a sample code for interfacing quadrature encoders[a/b channels]
  2. I need to determine position/direction...
  3. i searched for posts in the pbp forum,but they were all for 1 channel, 2 channels wanted.
​Thanks