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???
02/04/09 14:34
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#162050 - How long does your ISR take?
Responding to: ???'s previous message
Please read the instructions on how to post source code:

http://www.8052.com/faqs/120199

Note that there is now an 'Insert Program Code' button that almost does it for you...

Manoj Patil said:
but the timing is a bit slow.


Have you allowed for the time that it takes to execute your ISR...?

BTW: note that there is no point in prototyping an ISR.



List of 8 messages in thread
TopicAuthorDate
Software Clock is 3 Sec Slow per minute            01/01/70 00:00      
   How long does your ISR take?            01/01/70 00:00      
      Software clock is 3 sec slow            01/01/70 00:00      
         Don't assume - calculate!            01/01/70 00:00      
   You should use an auto-reload timer            01/01/70 00:00      
      Incorrect ISR - 21 ticks/second            01/01/70 00:00      
         Thank you ! Problem Solved            01/01/70 00:00      
            Solved? Check closely            01/01/70 00:00      

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