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???
03/16/05 00:05
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#89754 - NT kernels
Responding to: ???'s previous message
Farshid Jafari Harandi said:
Andy did mentioned a good point, using the NT kernels you don't get the proper timing

Actually, if you wrote in NT Kernel mode (ie, wrote a proper NT Device Driver), you probably would get the timings.
The trouble is that your code runs as a User application - so it does not get the direct access to the hardware that you assume (it just gets emulated access - hence the timing is lost).

There are parallel port drivers available for NT (including some free ones) which should let you achieve the necessary timing...



List of 9 messages in thread
TopicAuthorDate
help: programmer code for AT89S52 in C            01/01/70 00:00      
   Gobbledygook!!            01/01/70 00:00      
      How to post code            01/01/70 00:00      
   i have done a similar code            01/01/70 00:00      
      plz upload the code            01/01/70 00:00      
         take care of timings            01/01/70 00:00      
            NT kernels            01/01/70 00:00      
   DOS Only!            01/01/70 00:00      
      timing issue            01/01/70 00:00      

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