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???
07/21/05 11:02
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#97721 - re:mehdi & don't be surprised
Responding to: ???'s previous message
Sorry about pasting the code straight away, I am new on this forum so did not know and also was really cheesed off by working on micro for long time and did not getting anything out. I have been working on the same problem for couple of hours now and almost got it managed to work. Now the only issue is that, 8 out of 10 times it works fine and rest it does the same(all pins go high). There also has been another strange problem, when pins go high in start, they stay high for 3-4 secs and then slowly start going low "one by one" and once all pins are low, the program works fine. Could it be a power supply problem? or capacitor I have used at RST pin? I have used 10micoF capacitor and 8.2K resistor on RST pin.
I am only hoping that IC is not damaged and is programmed correctly.
Also mehdi I did try setting RST pin high but that does not make any difference.

I appreciate your help guys.
Regards
Kaz

List of 31 messages in thread
TopicAuthorDate
Help with Assembly Code            01/01/70 00:00      
   Just one question            01/01/70 00:00      
   REPLY            01/01/70 00:00      
      74HC244            01/01/70 00:00      
   Some Possibilities:            01/01/70 00:00      
   Don't be surprised ...            01/01/70 00:00      
      Do not use TABs!            01/01/70 00:00      
         Right, but I meant            01/01/70 00:00      
            in case of Keil            01/01/70 00:00      
               Sharp eye !            01/01/70 00:00      
   re:mehdi & don't be surprised            01/01/70 00:00      
      RC Reset!!!            01/01/70 00:00      
   could you explain            01/01/70 00:00      
   Port 1 output/input conflict.            01/01/70 00:00      
      port 0 assigned as output            01/01/70 00:00      
         hiding the point            01/01/70 00:00      
   RE: Input/Output port            01/01/70 00:00      
      infinite loop            01/01/70 00:00      
      port            01/01/70 00:00      
         terminology            01/01/70 00:00      
         re: Erik Malund            01/01/70 00:00      
            killing your '51            01/01/70 00:00      
               re: killing your '51            01/01/70 00:00      
                  Negative logic            01/01/70 00:00      
                  0 and 1            01/01/70 00:00      
            I know it is not "in" to read before act            01/01/70 00:00      
   Pullups?            01/01/70 00:00      
      Well ... maybe not with TTL ...            01/01/70 00:00      
         strictly speaking,for 74LS...            01/01/70 00:00      
         oh yes?            01/01/70 00:00      
   re: re: got it            01/01/70 00:00      

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