Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
08/10/07 07:53
Read: times


 		 #143035 - that's too easy to answer
Responding to: ???'s previous message
I had a circuit with RC reset, which in multiple field installations failed - no matter in which way, but in my case it was almost always battery RAM content corruption, except the runaway coin hopper case - and which in the SAME installations (the same place, same mains installation, same people doing the same operations), just with adding a small board replacing the RC reset by a proper reset IC - starts to work without ANY problems (and believe me, those problems get reported regularly) - pray, explain, what mechanism other than the presence of proper RESET could possibly remedy the problems experienced before?

This happened with at least 4 completely different platforms (the 4-bitter in the hopper, 65C02 - I did not mention that story yet, classical 8031 and AT89C2051).

I know this is a symptomatic description, so you might see it as not scientific enough, but for me, it provides the evidence firmly enough.

JW


List of 29 messages in thread
TopicAuthorDate
reset supervisors            01/01/70 00:00      
   two purposes of the IC (at least)            01/01/70 00:00      
      Unfortunately, they seem to fail at one of them            01/01/70 00:00      
         you are talking about the RC resets, I assume            01/01/70 00:00      
            No, I'm referring to the DS and Max 1232            01/01/70 00:00      
               and what            01/01/70 00:00      
                  It's just not that simple ...            01/01/70 00:00      
                     I am getting tired            01/01/70 00:00      
                        Reset chips do work properly and prevent damage!            01/01/70 00:00      
                           I never doubted that, Kai            01/01/70 00:00      
                              can you please be more precise...            01/01/70 00:00      
                                 Yes            01/01/70 00:00      
                              It is a black box and you will never find out...            01/01/70 00:00      
                                 It\'s the power supply, and probably not the reset.            01/01/70 00:00      
                                    That's not what the bible states...            01/01/70 00:00      
                                       Isn't that the same thing with different syntax?            01/01/70 00:00      
                                          No, is not. Look at INTEL's original C51 manual!            01/01/70 00:00      
                                             Vcc rise time            01/01/70 00:00      
                                                It can, I believe, be done simply.            01/01/70 00:00      
                                             Brown-out Bug Chasing            01/01/70 00:00      
                                                Seems reasonable            01/01/70 00:00      
                                             There's been nothing specific enough to test.            01/01/70 00:00      
                                                Some hints            01/01/70 00:00      
                                                   it's a thorny problem            01/01/70 00:00      
                                                      Add a monoflop            01/01/70 00:00      
                                                         I\'ve got to be careful ...            01/01/70 00:00      
                        Jan, you\'re missing my point!            01/01/70 00:00      
                           that's too easy to answer            01/01/70 00:00      
                              You have stories, but no specifics            01/01/70 00:00      

Back to Subject List