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???
12/04/06 08:03
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 		 #128894 - Common Errors in Memory Systems
Responding to: ???'s previous message
Priyanka Gupta said:
i don't understand that when you are saying that SRAM addresses are stuck, how it happens..


This article explains quite clearly the types of errors that commonly occur in memory systems (including "stuck-at"):

http://www.embedded.com/2000/0007/0007feat1.htm
Software-Based Memory Testing
Michael Barr

It also describes software methods to detect such errors.


List of 54 messages in thread
TopicAuthorDate
SRAM HY62256 interfacing            01/01/70 00:00      
   i think your address line A0 is stuck            01/01/70 00:00      
   Sram            01/01/70 00:00      
      Stuck            01/01/70 00:00      
      Common Errors in Memory Systems            01/01/70 00:00      
   How to post code            01/01/70 00:00      
       How to post code            01/01/70 00:00      
         Read the instructions!            01/01/70 00:00      
         how did you check them?            01/01/70 00:00      
         Checks            01/01/70 00:00      
            Schematic            01/01/70 00:00      
               no problem with hand-drawn schematics            01/01/70 00:00      
                  how to attach schematic which are in pdf format            01/01/70 00:00      
                     How to post code and Schematics            01/01/70 00:00      
                  my home page            01/01/70 00:00      
                     Your Home Page!            01/01/70 00:00      
                        exactly!            01/01/70 00:00      
                     Schematic Diagram as attachment            01/01/70 00:00      
                        Read the instructions!            01/01/70 00:00      
                           schematic problem            01/01/70 00:00      
                              link will be........            01/01/70 00:00      
   schematic pdf link            01/01/70 00:00      
      Schematic of SRAM with 8051            01/01/70 00:00      
         Capacitors?            01/01/70 00:00      
            where capacitor is used???            01/01/70 00:00      
               decoupling capacitor            01/01/70 00:00      
                  decoupling capacitor ??            01/01/70 00:00      
                     i have seen your profile            01/01/70 00:00      
                        It seems to have changed            01/01/70 00:00      
                     At the IC            01/01/70 00:00      
                        have a look            01/01/70 00:00      
                           Erik by god it is recently changed!            01/01/70 00:00      
   I think Neil is asking            01/01/70 00:00      
   Isn't this a 'C' problem rather than a RAM problem            01/01/70 00:00      
      Really?            01/01/70 00:00      
         code tested at simulator            01/01/70 00:00      
            So it's a hardware fault            01/01/70 00:00      
               Hardware tested            01/01/70 00:00      
                  answer to "why":            01/01/70 00:00      
                     but dont forget to put pull ups its port 0!            01/01/70 00:00      
                        for the test - yes, sure, sorry, I forgot            01/01/70 00:00      
                  "Hardware tested" and who gives a hoot            01/01/70 00:00      
                  Tested?!            01/01/70 00:00      
            it's the HW then            01/01/70 00:00      
         Yes, it looks like that.            01/01/70 00:00      
            Oh no it doesn't!            01/01/70 00:00      
               first of all, let me be clear ...            01/01/70 00:00      
                  not just stuck-at            01/01/70 00:00      
                     Good point!            01/01/70 00:00      
                        Let's give him credit ...            01/01/70 00:00      
                           yes it would, look here            01/01/70 00:00      
                              typo            01/01/70 00:00      
                              defective parts            01/01/70 00:00      
                                 if you look inside ...            01/01/70 00:00      

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