Re: EMC is installed, So now what?

Chris:

The 8254/53 is the timer chip on the motherboard used for
generating step timing. Accessing this chip (or whatever is now
emulating it) is one of the bottlenecks, in fact, it's the tightest
of the two on a modern PC doing numerical control. Generally, you're
stuck with whatever the system designers gave you in this regard. In
a rev or two I plan to add some Pentium specific timing options to
get around that particular pothole.

However, some BIOSs allow you to set the number of IO wait states,
check yours and see if it can. I've had stability issues when I've
played with this, but it might help you squeeze out more speed. If
you've been playing with Linux lately, I'm sure you know where to
find the BIOS setup screen. :)

Dave Kowalczyk
Everett WA
Author of TurboCNC --> http://www.dakeng.com/turbo.html

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Chris and Dee
<brunoblazer@y...>" <brunoblazer@y...> wrote:
{snip}

>
> 3.) Last question: When I run TurboCNC on the P166, the 8254
> latency is lower than my AMD K6 II 400. By all accounts the 400
> should be much faster (284mb ram vs 96, etc. etc). Is the 8254
> (which I assume is a clock of some kind) latency a function of
> motherboard layout alone and nothing else? What would affect this?
>
> As always, thanks!
>
> -Chris