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???
02/05/07 03:30
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 		 #131992 - about P1.0 and P1.1
Responding to: ???'s previous message
If I remember, only the at89c2051 has two comparator inputs connected to P1.0 and P1.1. This is why resistors are necessary. They define the default levels to the pins.

List of 70 messages in thread
TopicAuthorDate
LCD Help needed            01/01/70 00:00      
   as replied in parallel thread            01/01/70 00:00      
   try this...            01/01/70 00:00      
      Not this bit            01/01/70 00:00      
         I do both software and hardware.            01/01/70 00:00      
            diffference            01/01/70 00:00      
   What assembler??            01/01/70 00:00      
   No Initializatoin            01/01/70 00:00      
      Wait There it is.            01/01/70 00:00      
   Ah lcd problems!            01/01/70 00:00      
   Hardware problem?            01/01/70 00:00      
      Well i think its the Hardware + Software problem            01/01/70 00:00      
         Half of display            01/01/70 00:00      
            8 bit initialization            01/01/70 00:00      
               This is New Program            01/01/70 00:00      
                  nothing new            01/01/70 00:00      
                     Well sir Erik there is my code commented            01/01/70 00:00      
                        sparsely and nit using <pre> and </pre>            01/01/70 00:00      
                           It's not that difficult            01/01/70 00:00      
                              Well its not being good            01/01/70 00:00      
                                 OK, down to brass tacks and babysteps            01/01/70 00:00      
            Right Sid of LCD is Fading            01/01/70 00:00      
         normal?            01/01/70 00:00      
      LCD's vary, and contrast voltage is NEGATIVE!            01/01/70 00:00      
         sometimes            01/01/70 00:00      
            I heard that once ...            01/01/70 00:00      
         HUH?            01/01/70 00:00      
            guilty as charged            01/01/70 00:00      
               two            01/01/70 00:00      
                  I reuse mine            01/01/70 00:00      
   try this one            01/01/70 00:00      
      why try something that can not be unbderstood            01/01/70 00:00      
   Solve            01/01/70 00:00      
      Nothing is happining with New LCD also            01/01/70 00:00      
         Sorry guys...            01/01/70 00:00      
         Try            01/01/70 00:00      
            Well sir I am using HD44780            01/01/70 00:00      
               sloooow down coders            01/01/70 00:00      
   TESTED code for LCD            01/01/70 00:00      
      It may be tested..            01/01/70 00:00      
         blame            01/01/70 00:00      
            Circuit configuration for LCD interfacing            01/01/70 00:00      
               P1.x control?            01/01/70 00:00      
                  No problem with pin configuration            01/01/70 00:00      
                     Well i have changed Pin configuration back            01/01/70 00:00      
                        Pullups on P1.0,1            01/01/70 00:00      
                           about P1.0 and P1.1            01/01/70 00:00      
                        Does your micro work at all?            01/01/70 00:00      
                           to be specific...            01/01/70 00:00      
                        my issue            01/01/70 00:00      
      debugging            01/01/70 00:00      
   Finally i have did it.....            01/01/70 00:00      
      go high            01/01/70 00:00      
   Code for 8-Bit LCD (HD44780)            01/01/70 00:00      
      perfect            01/01/70 00:00      
         Perfect for some...            01/01/70 00:00      
            it is important with the at89c2051            01/01/70 00:00      
               i am noob, so dont worry about pins :-)            01/01/70 00:00      
                  no encryption required            01/01/70 00:00      
               Real world            01/01/70 00:00      
                  answer            01/01/70 00:00      
                     Is this true?            01/01/70 00:00      
                        To some people it seems            01/01/70 00:00      
                           kindof            01/01/70 00:00      
                              You can get by with this some of the time            01/01/70 00:00      
                              Point missed            01/01/70 00:00      
                                 check this            01/01/70 00:00      
                                    You didn't take the challenge            01/01/70 00:00      
   why should you            01/01/70 00:00      
   Help on LCD code            01/01/70 00:00      

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