Re: [CAD_CAM_EDM_DRO] Windows Real-time

----- Original Message -----
From: "PhilC" <phil@...>
To: <CAD_CAM_EDM_DRO@egroups.com>
Sent: Sunday, November 26, 2000 1:18 PM
Subject: Re: [CAD_CAM_EDM_DRO] Windows Real-time


> Art,
>
> I tried your VxD on a Windows 98 machine here and it locks the machine up
> immediately. The machine is an AMD K6-2 400 Mhz, 256 MB RAM, ATI 3D Rage
> Pro AGP Video, Creative E1371 Sound, LNE100TX Network card, Aladdin
Chipset.
> I don't have any Win95 system to try it on... all the rest of the machines
> run either Win2k or Linux...
>
> Regards,
>
> Phil Covington
>
> ----- Original Message -----
> From: "Art Fenerty" <fenerty@...>
> To: <CAD_CAM_EDM_DRO@egroups.com>
> Sent: Saturday, November 25, 2000 12:12 PM
> Subject: Re: [CAD_CAM_EDM_DRO] Windows Real-time
>
>
> > Alan:
> >
> > The interface is an automation object (COM) written in C++. It's
only
> > purpose is to send data to the VXD which is mostly assember. The VXD
> accepts
> > 4-byte commands
> > where the first byte is motor step and direction for each of 4-axis, and
> the
> > next two bytes are a number from 0-8191
> > which is the frequency in hertz to wait till the next pulse.
> > The VXD has a 64000 integer buffer so even at 8khz you have several
> > seconds (8) to do work before you need to add to the buffer. The buffer
is
> a
> > ring buffer that just keeps looping around. There will be a series of
> > command that can be used such as Spindle( on | off )..Aux1( on | off)
and
> > AddToBuffer( int* ); As well as a callback function for emergency stop.
> This
> > should make it rather easy to do real time in windows. It seems to work
as
> > well as any dos version of stepping does.
> >
> > Art
>
>
>
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