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???
04/22/10 02:37
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 		 #175247 - Great Idea !
Responding to: ???'s previous message
Thank you Stefan and JW,

i think the idea of using gated timer is good, it never occurred to me.

so now two pins of the micro are at risk :)

about peter's website and his examples, Yes, i/we do miss them big time,any chance anybody saved the website content on their system or in pdf.

i tried tracing AFAIK in mikrocontroller.net forum, but the site's translation to english was poor and i' couldn't find him.

As for the loyalty towards 8051/2, yes, its my all time favorite and i always code in the "True Programming Language" in other words its like my "Mother Tongue"

once again thanks to all the seasoned pros of this forum

Regards

Arun

List of 86 messages in thread
TopicAuthorDate
External Interrupt on both Falling edge & rising edge            01/01/70 00:00      
   ABORT!, ABORT!, ABORT!            01/01/70 00:00      
      Better circuits exists            01/01/70 00:00      
      one more            01/01/70 00:00      
   DANGER!! Don't Try This At Home!            01/01/70 00:00      
      Its not just Atmel            01/01/70 00:00      
   interrupts on both edges            01/01/70 00:00      
      Thank you All            01/01/70 00:00      
         Read about external Gate for Timer            01/01/70 00:00      
            gate for timer            01/01/70 00:00      
               Jan, will you Shhhhh!!!            01/01/70 00:00      
               Great Idea !            01/01/70 00:00      
                  But i've used up INT0 and INT1 pins            01/01/70 00:00      
                     int0 is gate for timer0            01/01/70 00:00      
                     T1(T0) pin is not use here            01/01/70 00:00      
                        so only one Ext.int pin will do            01/01/70 00:00      
                           i think so            01/01/70 00:00      
                              I haven't tried it yet            01/01/70 00:00      
                                 is a Zener that costly?            01/01/70 00:00      
                                 so try something safely            01/01/70 00:00      
                                    That the most exhaustive reply i got so far !            01/01/70 00:00      
                                       You are wellcome            01/01/70 00:00      
                                          Here's what i have done            01/01/70 00:00      
                                             simulation is partial            01/01/70 00:00      
                                                I'll try writing a sample code            01/01/70 00:00      
                                                   Dimmer            01/01/70 00:00      
                                                      its a dimmer for commercial sale            01/01/70 00:00      
                                                         Dimmer            01/01/70 00:00      
   Its in my Profile            01/01/70 00:00      
      is 8051/2 I/O similar to Zilog Z8            01/01/70 00:00      
         Cease and Desist            01/01/70 00:00      
         It's DANGEROUS - It's not about the IOs!!            01/01/70 00:00      
         Either you are NOT listening...or you don't want to listen            01/01/70 00:00      
            It's worse than that!            01/01/70 00:00      
               Its like openning Pandora's box            01/01/70 00:00      
                  chip A != chip B != chip C            01/01/70 00:00      
                  Consider these points...            01/01/70 00:00      
                     not a newbie to electronics            01/01/70 00:00      
                        What results do you really get from an experiment?            01/01/70 00:00      
                        Reply to Arun Kumar V            01/01/70 00:00      
                  what if the result is death?            01/01/70 00:00      
                     very positive opinion            01/01/70 00:00      
                     Thanks for the pointer            01/01/70 00:00      
   A generic approach to dual edge detection            01/01/70 00:00      
      Here is the method I have been using...            01/01/70 00:00      
      Oh Noes!!!!!!            01/01/70 00:00      
      4 -> 10 nsec Pulse Does Not Work for MCU            01/01/70 00:00      
         No additional logic gates            01/01/70 00:00      
         Modifying design            01/01/70 00:00      
            Yeah But...            01/01/70 00:00      
               If you say so            01/01/70 00:00      
                  Poppycock            01/01/70 00:00      
   Why you should not do this...            01/01/70 00:00      
      Galvanic isolation            01/01/70 00:00      
         Can't we use single AC optocoupler            01/01/70 00:00      
            not 1,8V            01/01/70 00:00      
            can be wrong circuit below            01/01/70 00:00      
               Critical again...            01/01/70 00:00      
                  varistor?            01/01/70 00:00      
                     Yes, but...            01/01/70 00:00      
            You can do a lot of things...            01/01/70 00:00      
               25V is too coarse            01/01/70 00:00      
                  use tha appnote I gave you the link to            01/01/70 00:00      
                  25V is not bad            01/01/70 00:00      
                     You still don't know what my product is?            01/01/70 00:00      
                        sorry            01/01/70 00:00      
                           Its O.K - this thread has crossed 65 replies            01/01/70 00:00      
                              npn            01/01/70 00:00      
                        no, I do not know what your product is            01/01/70 00:00      
                           Answers            01/01/70 00:00      
                              OK, then            01/01/70 00:00      
                                 No headphones            01/01/70 00:00      
                  Then take a better opto!            01/01/70 00:00      
                     he wants to build a Yogo, not a Mercedes            01/01/70 00:00      
                        which makes the lamp flicker when the fridge turns-off            01/01/70 00:00      
                           it (probably) does that anyhow            01/01/70 00:00      
                              No body wants to buy a Mercedez            01/01/70 00:00      
                                 What do you expect??            01/01/70 00:00      
                                    What is there to be ashamed of ?            01/01/70 00:00      
                                       Thread began with ....            01/01/70 00:00      
                                          Dead Horse is Alive and Kicking            01/01/70 00:00      
                                             obviously a comparator is a better solution            01/01/70 00:00      
                                                Oh My God...you having sleepless nights???            01/01/70 00:00      
                                             Then share it with us...            01/01/70 00:00      
                                             to Arun PLEASE get ...            01/01/70 00:00      
                                 what did you expect            01/01/70 00:00      

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