Re: Windows Real-time

Art,

I wasn't sure myself, so I checked, and the AMD K6 supposedly does
support the rdtsc instruction.

Regards,

Phil

--- In CAD_CAM_EDM_DRO@egroups.com, "Art Fenerty" <fenerty@h...>
wrote:

> Phil:
>
> Is it possible that a k6 wont respond to the machine code

instruction for

> "rdtsc", I use the time stamp counter
> in a pentium chip for exact timing. It allows me to time to within

a few

> nanoseconds for smoothness. Maybe a K6 has no time stamp counter?

If it

> can't the computer would
> lock up in my initialization loop as it times the CPU bus for

further

> calculations.
>
> Art
>
>
> Art
>
> ----- Original Message -----
> From: <phil@p...>
> To: <CAD_CAM_EDM_DRO@egroups.com>
> Sent: Monday, November 27, 2000 4:44 AM
> Subject: [CAD_CAM_EDM_DRO] Re: Windows Real-time
>
>
> > Art,
> >
> > I downloaded the updated version, but it still locks up the

machine

> > immediately.
> >
> > This morning I tried the VxD on a Windows 98 computer at work and

it

> > seems to work fine. So it must be something screwy with the other
> > computer. The computer at work is a Dell PIII 866Mhz machine.
> >
> > I will take a closer look at the AMD K6-2 machine tonight and see

if

> > I can come up with why it locks up. I have SoftICE from Compuware
> > which will allow debugging of VxDs...
> >
> > Regards,
> >
> > Phil Covington
> >
> >
> > --- In CAD_CAM_EDM_DRO@egroups.com, "Art Fenerty" <fenerty@h...>
> > wrote:
> > > Phil :
> > > Turns out I was initializing the IO48 board regardless
> > > whether you had one or not. This might have created the lockup.

I

> > have
> > > replaced the cnc.zip file with an updated version. Thanks for

the

> > help. It
> > > may not cure the problem you encountered, though.
> > > Art
> > >
> > > ----- Original Message -----
> > > From: "Art Fenerty" <fenerty@h...>
> > > To: <CAD_CAM_EDM_DRO@egroups.com>
> > > Sent: Sunday, November 26, 2000 7:10 PM
> > > Subject: Re: [CAD_CAM_EDM_DRO] Windows Real-time
> > >
> > >
> > > > Thanks for the feedback Phil. Thats the first lock-up report

I've

> > gotten.
> > > > Hopefully, more folks will have the same problem, so I can get
> > some
> > > pointer
> > > > to the problem.
> > > >
> > > > Art
> > > >
> > > > ----- Original Message -----
> > > > From: "PhilC" <phil@p...>
> > > > 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@h...>
> > > > > 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
> > > > >
> > > > >
> > > > >
> > > > > Welcome to CAD_CAM_EDM_DRO@e...,an unmoderated list for the
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> > > > List Manager
> > > >
> >
> >
> > Welcome to CAD_CAM_EDM_DRO@e...,an unmoderated list for the
> discussion of shop built systems, for CAD, CAM, EDM, and DRO.
> >
> > Addresses:
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