How to implement the 16-bit Quadrature Counter with GAL or CPLD?

[johan_tr2000]

Hi,

How to implement the 16-bit Quadrature Counter with GAL or CPLD?
Is it possible to emulate such as IC from HP HCTL-2016 or HCTL-2020?

Please Help

Thx + Rgds,

Tr2000

 

[xirix]

quadrature counter

It is possible in a small CPLD. I have implemented a dual channel quadrature counter in a Lattice (1032 - I don't remember exactly).
You have to build a small state machine.

 

[xirix]

quadrature decoder cpld

Here is a dual quadrature decoder

 

[mgajo]

Re: Quadrature Counter

Hi
Take a look at Microchip site motor section.
A lot of infos of use

 

[mskicker]

Quadrature Counter

really thanx