On Sun, 7 Mar 1999, Stephane Pierre Bordas wrote:
> Thank you very much for your replies from you all over the list.
>
> If you have any other source of information you would know about and that
> I could use to show the preferability of RTL Vs. Windows NT, please tell
> me, it would be of great use to me.
>
> Thank you very much,
>
> Best regards,
>
> Stephane.
>
Check comp.realtime and its FAQ (available at rtfm.mit.edu).
Few excerpts from the FAQ:
<<
Which Web Sites give information about real-time?
The Real-Time Encyclopaedia about everything you want to know about
real-time (http://www.realtime-info.be)
E. Douglas Jensen Web Site (http://www.realtime-os.com/rtresour.html)
Frank Miller Resource list
http://www.cs.umd.edu/~fwmiller/etc/realtime.html
EEToolbox Resource link list http://www.cera2.com/realtime.htm
The RTC Group (http://www.rtcgroup.com)
Embedded Systems (http://www.embedded.com/net.htm)
VITA (http://www.vita.com)
GRoupIPC (http://www.groupipc.com)
A good collection of links
(http://www.ifi.unizh.ch/groups/ailab/embedded.html)
>>
<<
Is Windows NT (or windows 95, or even Windows CE now) a Real-Time
Operating
System?
This question appears repeatedly in this news group. Here are the key
points:
- Despite a real-time class process, the Win32 API is not suitable to be
used for a Real-time system:
1. Too few priorities for processes and threads
2. No priority inheritance mechanism
3. Some calls are synchronous with process from the Dynamic Class
- Despite a good interface to hardware for CLASSICAL applications, this
interface is not suitable to develop a real-time system:
1. Most of the job in a device driver is done at the DPC level. And most
COTS DD take too much time in the DPC.
2. The DPC problem could have been avoided by increasing the number of DPC
levels, but this is not the case.
3. Pentium Power Management interrupt can preempt your system for an
unpredictable amount of time (depending of the BIOS)
- Real-time clock
There is a lack of programmable timer.
For a more complete view, look at article:
http://www.realtime-info.be/encyc/magazine/97q2/winntasrtos.htm
>>
<<
Is Windows CE 2.0 a real-time operating system?
This question appears frequently since the release of Windows CE 2.0. It
is
not suitable for real-time system development because:
1.The number of priority levels is too low;
2. Interrupts can not be nested;
3. Interrupt latency is too high;
>>
Hope it helps.
Regards,
Dmitri.
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