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???
10/01/09 10:21
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 		 #169326 - Test your Display routines using DIP switches
Responding to: ???'s previous message
Dear Jr,

You can check your display routines by using DIP switches.

1. connect 8 DIP switches (or 8 individual switches) to your Port.
2. Toggle switches individually manually. Try to read & display the port data.

(While connecting switches connect one end (with pulled up to VCC) to port pin, while other end goes to Ground.)

Regards,
Mahesh

P.S. Also check how you are reading ADC 0804 check control signals, reference voltage etc... for the same

List of 28 messages in thread
TopicAuthorDate
TEMPERATURE MONITORING DEVICE USING AT89C51            01/01/70 00:00      
   Divide your problem into parts            01/01/70 00:00      
      ADC is working fine            01/01/70 00:00      
   29.9 is what you implemented            01/01/70 00:00      
      I don't get it.            01/01/70 00:00      
         OR this way also            01/01/70 00:00      
         Did you try?            01/01/70 00:00      
            Debugging techniques            01/01/70 00:00      
            tried it            01/01/70 00:00      
   Test your Display routines using DIP switches            01/01/70 00:00      
   Excellent question            01/01/70 00:00      
      agreed, but one thing missing            01/01/70 00:00      
         8 data lines for 7-seg            01/01/70 00:00      
            I see no con2 connections on your schematic and ...            01/01/70 00:00      
               also            01/01/70 00:00      
               CON2 is good.            01/01/70 00:00      
         7 segments, plus DP            01/01/70 00:00      
            the 8 data lines are each segment + dot            01/01/70 00:00      
      Thank you            01/01/70 00:00      
   Look at your code            01/01/70 00:00      
      You're right            01/01/70 00:00      
         First try to solve the simplest things like DELAY            01/01/70 00:00      
   Problem Solved!            01/01/70 00:00      
      We ought to have this as an example of a well-framed query!            01/01/70 00:00      
         Absolutely            01/01/70 00:00      
            Fix the FAQs?            01/01/70 00:00      
            agreed, but there is one fly in the ointment            01/01/70 00:00      
               it's not a big fly            01/01/70 00:00      

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