Re: Recommendations for a Quadrature Decoder IC or MicroController


"benn" <benn686@xxxxxxxxxxx> wrote in message
news:33157349-c306-4837-a17c-23a8d245bfa3@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I have an atmega16 that interfaces to a motor with a quadrature
encoder sensor. Turns out the frequency of the pulses are much more
than my little 4Mhz can handle (the micro does other things as well!)
As a result, the motor control isn't very accurate, nor does it react
very fast.

SO.. I'm looking for either a quadrature decoder IC that can take the
load off (will calculate position/velocity and interface to a host
micro via serial/parallel bus), OR, a beefy microcontroller with built-
in decoders (and pwm output). 32-bit with lots of GPIO is ideal if
going the microcontroller route.



Basic interfaces & interface + counter ICs here:
http://www.usdigital.com/products/interfaces/ics/
Cheaper than the old HP offerings.


.

Relevant Pages