decoding quadrature encoders

[ice]

Luciano,

The version of the PIC used. (16F628, 16F628A, ...).

im using the PIC16F873A

If you are using a commercial board for the PIC, I need
the URL where I can see the board.

I made my own dev board..has an LCD,A/D..the usual features..
works on a 4Mhz crystal..
The board works perfectly as i have run accelerometers,D/A converters from the same board

The brand and model number of the encoder and the URL where I can
download the data sheet.

Maxon 22578
500 counts per turn
http://www.maxonmotor.com/docsx/Down...f/05_238_e.pdf

I also need to know how you have connected the encoder to
PORTB.0 and PORTB.1. (Pull-up resistors? If yes, values).

Pull up resistors
with value 1.8K


Thanks for all your help