John Kasunich wrote: >Steve Blackmore wrote: > > >>On Mon, 17 Aug 2009 22:11:34 -0400, you wrote: >> >> >> >>>Another approach to quadrature dividing: >>>http://emergent.unpy.net/projects/01149271333 >>> >>> >>Needs a Pluto_P board, again too expensive over here. >> >> >Huh? > >That posting is about dividing quadrature, not Pluto. > >Actually, I think I linked to the posting that came immediately before >the one I really wanted. Look at >http://emergent.unpy.net/projects/01149348342 > >There is a schematic, board layout, and source code for a very tiny >quadrature divider. > > Unfortunately, it doesn't help with index. Many high-end encoders gate the index pulse so it's only on for one quadrature phase. The tiny software would need to be changed to extend the index pulse for a full output count cycle (it's not obvious to me how to do that with the table-driven approach, after 2 minutes of looking at it)
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