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???
06/02/08 18:21
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#155412 - No erase is needed, why did I think it was?
Responding to: ???'s previous message
[J]...the block erase command ... is provided just to make happy the Philips users who want to ... migrate to Atmel, as there is no real need for it.

I had to think about that for a minute, then I wrote a test program that did multiple block writes (with different data) to the same area, and found that no erase is needed!

I didn't recall seeing anything in the documentation indicating that an erase is not needed, but I looked again and there it is on page 86.

Having focused a great deal on the Block Erase command in the API Call summary caused me to not do a very good job of RTFM.

(Honest guys, I'm usually better at this.)


List of 19 messages in thread
TopicAuthorDate
Now I can't get "Erase Block" to work, 89C51RC2            01/01/70 00:00      
   PLEASE, pretty please            01/01/70 00:00      
      Atmel 89C51RC2-UM Erase Block            01/01/70 00:00      
         if there is no prefix on the chip...            01/01/70 00:00      
            FLIP says it is an AT89C51RC2            01/01/70 00:00      
         Oh, everybody remembers all previous posts,            01/01/70 00:00      
            Well I remember all of yours! :)            01/01/70 00:00      
   why wouldn't be that?            01/01/70 00:00      
      Have I misinterpreted the documentation?            01/01/70 00:00      
         WHICH documentation?            01/01/70 00:00      
            BAD documentation!            01/01/70 00:00      
               oh, THAT one IS bad indeed!            01/01/70 00:00      
   I'd say this the reason why erase does not work...            01/01/70 00:00      
      No erase is needed, why did I think it was?            01/01/70 00:00      
         but, Gary, we HAVE been talking about it...            01/01/70 00:00      
            I know, I have been missing that            01/01/70 00:00      
               when I came accross IAP for the first time...            01/01/70 00:00      
   Not How - but the Before/After            01/01/70 00:00      
      Run In Simulation            01/01/70 00:00      

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