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???
10/14/05 12:17
Modified:
  10/14/05 12:22
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 		 #102398 - this could/would confuse some newbie
Responding to: ???'s previous message
ORG 0BH ;or other interrupt address
LJMP timer1_ISR
The location of the timer 1 ISR is 0x0b CAST IN STONE.

what Claus is trying to indicate is that all interrupt locations (0x?3 and 0x?b should have a jump to the app code following them.

ALSO

if your ISR can fit within 8 memory locations as e.g.
Save This Code
org 0x03h
setb flag
reti
there is no need to jump

Erik


List of 29 messages in thread
TopicAuthorDate
writing code in interrupt handler addr            01/01/70 00:00      
   tell you how to write ...            01/01/70 00:00      
      Thank U...            01/01/70 00:00      
         short answer            01/01/70 00:00      
   My book            01/01/70 00:00      
      Let's make it more complete            01/01/70 00:00      
         this could/would confuse some newbie            01/01/70 00:00      
            can any one suggest me to find a solutio            01/01/70 00:00      
               as previously stated:            01/01/70 00:00      
               Initialize and do_forever            01/01/70 00:00      
         where does org100h and org30h branch to?            01/01/70 00:00      
            what do you mean?            01/01/70 00:00      
               hope iam clear now            01/01/70 00:00      
               what is the possible Address range ....            01/01/70 00:00      
                  bible time            01/01/70 00:00      
            ORG            01/01/70 00:00      
               should i add startup 51 for my code..            01/01/70 00:00      
                  manual?            01/01/70 00:00      
                     It indicates for C code            01/01/70 00:00      
                        does it say "use for assembler"?            01/01/70 00:00      
                           No. The example for adding startup.A51            01/01/70 00:00      
                              conclusion?            01/01/70 00:00      
                                 i got my codes executed successfully....            01/01/70 00:00      
                                    dwarfs ?            01/01/70 00:00      
                                        u people...            01/01/70 00:00      
                                          If that is what you ment, then why not s            01/01/70 00:00      
                  assembly codes with AT89C51            01/01/70 00:00      
                     no problem with hex            01/01/70 00:00      
                        up to you...            01/01/70 00:00      

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