Email: Password: Remember Me | Create Account (Free)


 

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
Per Westermark
06/22/09 01:27
Read: 344 times
Sweden


 		 #166326 - slow processors
Responding to: Per Westermark's previous message
Just a footnote - for people running original 12-clockers, it may be an idea to have a #define to run the ISR in 100Hz instead of 1kHz - either requiring the user to specify the delay in 0.01s steps, or let the user still specify the delay in 1ms steps, but let the actual delays tick 10ms at a time.

Not all projects requires 1ms resolution, and the instructions consumed by the ISR can be quite expensive if the processor is slow.

List of 29 messages in thread
TopicAuthorDate
Pseudo timers make programming delays easy.        Murray R. Van Luyn      06/21/09 23:10      
   volatile + racing condition      Per Westermark      06/21/09 23:55      
      slow processors      Per Westermark      06/22/09 01:27      
         You beat me to it...      Jez Smith      06/22/09 01:50      
      Timers_0.1 available.      Murray R. Van Luyn      06/22/09 01:52      
         SDCC      Jan Waclawek      06/22/09 02:19      
            ISR defining with SDCC      Mahesh Joshi      06/22/09 02:42      
               oh, I just read it in the manual      Jan Waclawek      06/22/09 02:50      
                  only conditionally, as #ifdef SDCC      Andy Neil      06/22/09 03:20      
               SDCC and ISRs      Andy Peters      06/23/09 14:17      
                  Prototyping ISRs      Andy Neil      06/23/09 16:04      
                     you can see it as if....      Jan Waclawek      06/23/09 16:39      
                        SDCC Quirk?      Andy Neil      06/23/09 16:56      
                           internals of SDCC        Maarten Brock      07/08/09 14:31      
                     duh      Andy Peters      06/24/09 14:49      
         Too quick        Per Westermark      06/22/09 02:38      
            I see something else...        Jan Waclawek      06/22/09 02:53      
               That helped.      Murray R. Van Luyn      06/22/09 22:33      
            Oops! Timers_0.2 available.      Murray R. Van Luyn      06/22/09 22:23      
               you persist      Erik Malund      06/23/09 07:25      
   Good idea!      Andy Neil      06/22/09 01:46      
   atomicity      Erik Malund      06/22/09 08:13      
      No      Jez Smith      06/23/09 08:40      
         I gladly, click on a link ....      Erik Malund      06/23/09 08:53      
            Direct link      Jon Ledbetter      06/23/09 10:54      
               that was clearly possible, I wonder why ...      Erik Malund      06/23/09 14:11      
               one more thing, now we are digging deep      Erik Malund      06/25/09 06:37      

Back to Subject List