decoding quadrature encoders

[picster]

Thank you Richard. I will test this and let you know the results.

Also, though the encoder is optical, I am going through a 74C14 hex Schmitt trigger with rc filtering to remove any stray noise. all cabling from the encoder is shielded. Monitoring the output results in clean square wave with fast rise and fall times.

Chris

Out of curiosity, what R/C values did you find to be optimal on your schmitt triggers?

Picster