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10/21/04 12:22
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#79665 - ADUC812 Port 1
Hi All,

I am trying to use the ADUC812 Port 1 as an input. I have connected some digital inputs to various pins on Port 1. I have written oo hex to all the pins to make them inputs. However when I try to input the digital data all I get is rubbish. I am using aspire to step through it in real time. Is there anything else I have to do? Is there anything I am leaving out. Here is my code:

$MOD812
ORG 0000H
LJMP 0200H
ORG 0200H

MOV SP,#40H
MOV P1,#00H ;Makes port 1 an i/p
AGAIN: MOV A,P1
LJMP AGAIN
END

Thanks All.


List of 15 messages in thread
TopicAuthorDate
ADUC812 Port 1            01/01/70 00:00      
   RE: ADUC812 Port 1            01/01/70 00:00      
      RE: ADUC812 Port 1            01/01/70 00:00      
         RE: ADUC812 Port 1            01/01/70 00:00      
   RE: ADUC812 Port 1            01/01/70 00:00      
      RE: ADUC812 Port 1            01/01/70 00:00      
         RE: ADUC812 Port 1            01/01/70 00:00      
            RE: ADUC812 Port 1            01/01/70 00:00      
               RE: ADUC812 Port 1            01/01/70 00:00      
                  RE: ADUC812 Port 1            01/01/70 00:00      
            RE: ADUC812 Port 1            01/01/70 00:00      
   RE: ADUC812 Port 1            01/01/70 00:00      
      RE: ADUC812 Port 1            01/01/70 00:00      
         RE: ADUC812 Port 1            01/01/70 00:00      
            RE: ADUC812 Port 1            01/01/70 00:00      

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