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???
02/12/04 00:17
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#64554 - RE: Adding External RAM to ADuC831
Responding to: ???'s previous message

Some Ram chips don't like having /CS grounded especially if it is a high speed device (like the cache rams from pc motherboards). You can AND /WR and /RD to generate the /CS (you may want to AND in PSEN also).

Why have you got PSEN anded with /rd ? I think the 831 has 62k flash so you can't get anymore code space - this is unless you're trying to use the ram as external code store.



List of 16 messages in thread
TopicAuthorDate
Adding External RAM to ADuC831            01/01/70 00:00      
   RE: Adding External RAM to ADuC831            01/01/70 00:00      
      RE: Adding External RAM to ADuC831            01/01/70 00:00      
         RE: Adding External RAM to ADuC831            01/01/70 00:00      
            RE: Adding External RAM to ADuC831            01/01/70 00:00      
         RE: Adding External RAM to ADuC831            01/01/70 00:00      
            RE: Adding External RAM to ADuC831            01/01/70 00:00      
               RE: Adding External RAM to ADuC831            01/01/70 00:00      
         RE: Adding External RAM to ADuC831            01/01/70 00:00      
            RE: Adding External RAM to ADuC831            01/01/70 00:00      
               RE: Adding External RAM to ADuC831            01/01/70 00:00      
         RE: Adding External RAM to ADuC831            01/01/70 00:00      
            RE: Adding External RAM to ADuC831            01/01/70 00:00      
         RE: Adding External RAM to ADuC831            01/01/70 00:00      
            RE: Adding External RAM to ADuC831            01/01/70 00:00      
   RE: Adding External RAM to ADuC831            01/01/70 00:00      

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