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???
03/29/07 13:28
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 		 #136094 - DS1307 back up problem
Hi,

I am having problem with ds1307 back up problem.The code is running fine i.e when the power is on it displays time correctly..but when the is switched off and then on it resumes from where it is switched off(not getting updated)...i have connected a 3V battery at Vbat

what i meant to ask is
1) the oscillator is working fine because it displays time.
2) It saves the contents of DS1307 when it is switched off...which means 3V is providing me backup

BUT it is not getting updated during power off condition...pls help


List of 34 messages in thread
TopicAuthorDate
DS1307 back up problem            01/01/70 00:00      
   backup problem            01/01/70 00:00      
   To Pradheep            01/01/70 00:00      
      back up problem            01/01/70 00:00      
         Are you sure?            01/01/70 00:00      
   Are you sure...            01/01/70 00:00      
   Something else            01/01/70 00:00      
      To Jon            01/01/70 00:00      
         Have a look at this            01/01/70 00:00      
            seems?            01/01/70 00:00      
               Help me            01/01/70 00:00      
                  Extract fron the datasheet            01/01/70 00:00      
         Open Drain Output            01/01/70 00:00      
   Crystal            01/01/70 00:00      
      To a different kind?            01/01/70 00:00      
         crystal            01/01/70 00:00      
            In the link            01/01/70 00:00      
               pull up            01/01/70 00:00      
                  Yes, but...            01/01/70 00:00      
      Yes, looks like a poor crystal...            01/01/70 00:00      
         Power Up / Down            01/01/70 00:00      
            Problem Solved            01/01/70 00:00      
               Not so fast...            01/01/70 00:00      
                  'testing' revisited            01/01/70 00:00      
                     The same thought I !            01/01/70 00:00      
               request            01/01/70 00:00      
                  Learn to debug            01/01/70 00:00      
                     Very useful post, Andy!            01/01/70 00:00      
                        Other part of rule #1            01/01/70 00:00      
                        a great goal, do you achieve it every time ?            01/01/70 00:00      
                           Revision Letters            01/01/70 00:00      
                           Here's how            01/01/70 00:00      
                              and pay $25,000,000 to the descendants            01/01/70 00:00      
                        Hopefully, it leads that way            01/01/70 00:00      

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