Colin

How about a 'counter card' for the PC

Neven

----- Original Message -----
From: "Colin Fraser" <[EMAIL PROTECTED]>
To: "Multiple recipients of list delphi" <[EMAIL PROTECTED]>
Sent: Wednesday, 25 July 2001 14:50
Subject: RE: [DUG]: Timing Resolutions


> >>What are you trying to do??
>
> >>Myles.
>
> Hi Myles,
>
> The application was for controlling a robotic arm... I believe the
> application used to count pulses (from something) as the arm moved but
this
> was proving unreliable as a pulse or two was getting missed.
>
> The application would need to time the movement of the arm... I think they
> where also looking at a PLC to do the counting and return the counts to
the
> PC, that was another option.
>
> Regards
> Colin
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
> Behalf Of Myles Penlington
> Sent: Wednesday, 25 July 2001 11:02 am
> To: Multiple recipients of list delphi
> Subject: RE: [DUG]: Timing Resolutions
>
>
> Delphi can do the same as any other Win32 application.
>
> Since you are running in a multi-tasking timeslice environment, the 10ms
> resolution may be more to do with the basic task switching
timeslice/machine
> loading.
>
> The standard counters are in milliseconds, with the lowest being 1ms.
> However there is more detail available in the performance counters, but
> again, the multitasking timeslice may have bigger effects. How fast is the
> machine??
>
> If you want you can count CPU cycles/instructions counts with the RDSTC
> instruction if required (some of the profiling software uses this method).
>
> What are you trying to do??
>
> Myles.
>
>
> -----Original Message-----
> From: Colin Fraser [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, 25 July 2001 10:52 a.m.
> To: Multiple recipients of list delphi
> Subject: [DUG]: Timing Resolutions
>
>
> Hi all,
>
> I have just had someone ask me about timing resolution in Delphi.
>
> I understand that TDateTime can record milliseconds, but I am not sure to
> what level... also I have seen the TTimeStamp routing for storing time in
> more detail.
>
> I see that you can set a TTimer in milliseconds, but how low can you go???
>
> I have heard 50 milliseconds, is that correct. I have also had a look at
> GetTickCount... that seems to go up in 10 millisecond intervals.
>
> Any info, or pointers to functions would be great.
>
> Regards
> Colin
>
>
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