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???
08/22/11 06:32
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#183429 - Example code
Responding to: ???'s previous message
Hi Andy,
Can you correct me if I'm wrong.
This is echoing the led. So if I want to keep the led on I should remove the following code?

"JMP start ; and repeat"

; This program very simply echoes the
; switches on P2 to the LEDs on P1.

; When a switch is closed a logic 0 appears
; on that P2 pin, which is then copied to
; that P1 bit which turns on that LED.
; Therefore, a closed switch is seen as a lit
; LED and vice versa.

start:
MOV P1, P2 ; move data on P2 pins to P1
JMP start ; and repeat

List of 19 messages in thread
TopicAuthorDate
Compatible Issue??            01/01/70 00:00      
   AVR Studio            01/01/70 00:00      
   No            01/01/70 00:00      
   How about programming issue?            01/01/70 00:00      
      They are totally different!            01/01/70 00:00      
         To: Kai Klaas            01/01/70 00:00      
            "Gimmee Code"            01/01/70 00:00      
               Thanks            01/01/70 00:00      
                  Why wait for answer from a forum            01/01/70 00:00      
                     How to proceed            01/01/70 00:00      
            Example code for AT89S52            01/01/70 00:00      
               Example code            01/01/70 00:00      
                  Your contributions are annoying...            01/01/70 00:00      
   What error?            01/01/70 00:00      
      Can't get in programming mode.            01/01/70 00:00      
         Confusion over meaning of "programming"?            01/01/70 00:00      
            Writing the program            01/01/70 00:00      
               RE: Writing the program            01/01/70 00:00      
   Thanks all.            01/01/70 00:00      

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