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02/03/09 11:23
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#161987 - what is the signal freuency on all ports of at89c52/51
Dear all,

I am using At89c51/52 with 11.0952Mhz crystal. If I write a code like this...


P1_0 = 1;

Then what is the time that the output is high.. I mean frequency of the signal.

If I need high on port 1_0 for 40 nano seconds then how to do program.



List of 16 messages in thread
TopicAuthorDate
what is the signal freuency on all ports of at89c52/51            01/01/70 00:00      
   minimum pule is 1086 nanoseconds.            01/01/70 00:00      
      Buzz!            01/01/70 00:00      
   40ns is a very short time            01/01/70 00:00      
   You need a faster MCU            01/01/70 00:00      
      the fastest '51            01/01/70 00:00      
      80ns ?            01/01/70 00:00      
         Sorry about that ...            01/01/70 00:00      
            Still not known if single pulse or pulse train            01/01/70 00:00      
               Where there's a will ...            01/01/70 00:00      
            Timer or PCA            01/01/70 00:00      
               repeat earlier question with clarity            01/01/70 00:00      
                  Timing can't be discussed when C is involved            01/01/70 00:00      
                  Think about it            01/01/70 00:00      
                     Supplementary question...            01/01/70 00:00      
                        At first blush . . .            01/01/70 00:00      

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