Re: Re: Black box

Art,

Agreed.

>Definitely nice Tom, but the holy grail, I think, is to do it
>without any hardware added to your computer at all.
>It's what keeps me interested anyway.

Ballendo

P.S. If you're planning to issue steps from a "timebase" of 8192hz, I
think you're going to follow the same rocky path that EMC(steppers)
followed. See Matt Shavers recent post(referring to this in earlier
posts)

If you're going to use one channel of the 8254, or the pentium Rdstc
(undocumented, HaH!)instruction, you'll still be dealing with base 2
type granularity problems, but that is what CNCpro and EMC are using
(8254), so it DOES work.

The rdstc (read time stamp counter) is a Pentium specific(uP
internal) that increments at the clock frequency! Not all pentiums
have it accessible, but it may be worth a look.