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???
01/09/07 21:09
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 		 #130534 - Erik it is 12 clocker
Responding to: ???'s previous message
Erik Malund said:
Yes it does work, but it will not help me understand how find the code differances in 80c31 w/r rd. I looked at this code 5 and 6 times trying understand what the engineer did. The fact that I can not share code makes it even harder to explain.
Do you run at the same (or lower) clock speed that the original?
since the original (1990) will be a 12 clocker, do you use a 12 clocker?

Erik


Hi Erik:
I always leave something out. My mcu is 89c4051 which is using the 11.0592 Mhz crystal. Also Tim used Metalink assembler. I do not write C code. That was reason I picked the Atmel 89c4051 it is only 20 pins and is completely core code 8051. It does not have memory mapping however. I am running the unit at Vcc 5v.

Best regards,

Ralph Sac


List of 44 messages in thread
TopicAuthorDate
How to create wr rd for E strobe on LCD            01/01/70 00:00      
   No research!            01/01/70 00:00      
      Wrong plenty of research            01/01/70 00:00      
         clock speed?            01/01/70 00:00      
            Erik it is 12 clocker            01/01/70 00:00      
               the question is moot ...            01/01/70 00:00      
         Wrong!            01/01/70 00:00      
            My error            01/01/70 00:00      
               Asm code            01/01/70 00:00      
                  missing boldface            01/01/70 00:00      
                  4051 has no port 0            01/01/70 00:00      
                     Tell me something I don't know!            01/01/70 00:00      
   when posting a schematic PLEASE do not do it in a            01/01/70 00:00      
      This why Erik            01/01/70 00:00      
         upset?            01/01/70 00:00      
            Your 1 True Love            01/01/70 00:00      
               I don't what happen but see below            01/01/70 00:00      
   AT89C4051 hardware            01/01/70 00:00      
      A better schematic post            01/01/70 00:00      
         Understanding the schematic will help.            01/01/70 00:00      
            Thanks for the your reply            01/01/70 00:00      
               Which ports you use doesn't matter ...            01/01/70 00:00      
   LCD interface            01/01/70 00:00      
      Thanks for the comment            01/01/70 00:00      
         Cant post code?            01/01/70 00:00      
      Yikes, that interface is old-skool !            01/01/70 00:00      
         yikes, your attitude sucks            01/01/70 00:00      
         You don't like my idea            01/01/70 00:00      
            It is here!            01/01/70 00:00      
               don't quite understand            01/01/70 00:00      
                  I can            01/01/70 00:00      
                     commodore 64            01/01/70 00:00      
   STOP - THINK - START OVER            01/01/70 00:00      
      Thanks for your comments            01/01/70 00:00      
         You must know what is required            01/01/70 00:00      
            an addition            01/01/70 00:00      
               shortcut            01/01/70 00:00      
                  in response to Andy, there is now one worse            01/01/70 00:00      
                     That's why these queries continue to appear HERE!            01/01/70 00:00      
                     Mapquest            01/01/70 00:00      
   Nice Thread. Lots of passion.            01/01/70 00:00      
      This was a popular PIC demo about 15 years ago            01/01/70 00:00      
         We're dating ourselves a bit arent we?            01/01/70 00:00      
            Well ... Yes ... maybe ... those were the days ...            01/01/70 00:00      

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