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???
08/12/05 16:28
Modified:
  08/12/05 16:33
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 		 #99287 - again follow the recipe to the letter an
Responding to: ???'s previous message
I am in a small city of China, there is not exact the same part like 74HCT541, I need to substitute it with HC541

again follow the recipe to the letter any substitution will make it fail.

You may have to order the correct part from somewhere else and have it shipped in.

We have this discussion almost weekly and every time it is "why does it not work when I do not follow the directions" the answer always is "becuse you did not follow the directions"

Programming specs for chips are very specific something like a chup substitution can totally "kill it".

Another possibility, get a UART programmable chip such as P89V51R... AT 89C51R.. P89C5166x etc and that is straight forward programming. Uc and MAx232(equivalent) and off you go with FlashMagic or Flip.

Erik

List of 45 messages in thread
TopicAuthorDate
AT89S52 and ISP cable            01/01/70 00:00      
   Why do so many rely on Joe Blows posting            01/01/70 00:00      
      sorry, sir            01/01/70 00:00      
         Programmers are not "forgiving" they mus            01/01/70 00:00      
            all right            01/01/70 00:00      
         cable            01/01/70 00:00      
   Doubts...            01/01/70 00:00      
      yes, there are many differents!            01/01/70 00:00      
         again follow the recipe to the letter an            01/01/70 00:00      
            thank you sir!            01/01/70 00:00      
               oscilloscope            01/01/70 00:00      
               Some help...            01/01/70 00:00      
                  Read these articles            01/01/70 00:00      
   Try this Circuit and software. Its good            01/01/70 00:00      
      but            01/01/70 00:00      
         100uF?            01/01/70 00:00      
            BOTH            01/01/70 00:00      
   Back to the future            01/01/70 00:00      
      Cultural background             01/01/70 00:00      
         DeLorean            01/01/70 00:00      
            Buy a lowcost programmer from KDI            01/01/70 00:00      
               Not ISP!            01/01/70 00:00      
                  better than ISP for Adam            01/01/70 00:00      
                     anything is better than than a hand made            01/01/70 00:00      
                     None-Sense !            01/01/70 00:00      
                        NOPE            01/01/70 00:00      
                           You're quite right            01/01/70 00:00      
                        Just a newbie needs the right stuff!            01/01/70 00:00      
                           there would be someways            01/01/70 00:00      
                        nonsense            01/01/70 00:00      
                           not quite what you understanded            01/01/70 00:00      
                              Understanded!!! (you mean understood?)            01/01/70 00:00      
                              Excellent post !            01/01/70 00:00      
                                 Any time            01/01/70 00:00      
               lowcost            01/01/70 00:00      
                  lowcost            01/01/70 00:00      
                     and it takes 400 amps to power a '51            01/01/70 00:00      
                        400 amps            01/01/70 00:00      
                           Viking boat            01/01/70 00:00      
                           of course not but it is equally riduicul            01/01/70 00:00      
                              Viking boats            01/01/70 00:00      
                                 it would be nice to know what you were t            01/01/70 00:00      
   The problem is the printer,.            01/01/70 00:00      
   EaseMicro51            01/01/70 00:00      
   thank you very much!            01/01/70 00:00      

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