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???
08/12/05 13:08
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#99265 - Could you poll instead?
Responding to: ???'s previous message
With those frequency and instruction clock parameters, using interrupts to capture an 8us signal seems like it would border on infeasible (I haven't done the calculations). If you can't achieve it using interrupts, would your design allow for polling to eliminate the overhead of interrupts? If you can't, you'd better start considering a high-frequency/reduced-clock MCU variant.

We've contrasted interrupts and polling methods before. An example:

http://www.8052.com/forum/read.phtml?id=73532

List of 11 messages in thread
TopicAuthorDate
Interrupt Latency            01/01/70 00:00      
   Clock speed ?            01/01/70 00:00      
   many factors            01/01/70 00:00      
      Just curious...            01/01/70 00:00      
         not that I know of, my recollection evid            01/01/70 00:00      
   Interrupt Latency            01/01/70 00:00      
      calculate            01/01/70 00:00      
      Could you poll instead?            01/01/70 00:00      
         He's got one, but is running it in 12 cl            01/01/70 00:00      
      Another way maybe            01/01/70 00:00      
      Depends upon the ISR & crystal            01/01/70 00:00      

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