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???
01/16/08 21:10
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 		 #149607 - that's not really a problem...
Responding to: ???'s previous message
... on the other hand, using a bigger socket (DIL32) provides 1. a bigger chance to get either the smaller or the bigger memory; 2. an opportunity to point out methods of adressing >64k memory (paging) and related issues.

Of course it requires a bit of thinking on all the connections, and an array of jumpers.

Nevertheless, I'd welcome at least one DIL32 socket with configurable "upper" pins for FLASH (29C040) - that might be an another issue worth adding (while dropping perhaps the EPROM).

JW

(PS. I couldn't get the AT25xx SPI memory, I intend to adopt an AT45xx dataflash for the DIL8 socket - yeah, no time...)


List of 71 messages in thread
TopicAuthorDate
8052.com SBC and Book            01/01/70 00:00      
   I'd go silabs derivative devboard            01/01/70 00:00      
      ICE functionality            01/01/70 00:00      
         an incomplete list            01/01/70 00:00      
            amplification            01/01/70 00:00      
               No, only the flash based            01/01/70 00:00      
                  never knew            01/01/70 00:00      
            P89LPC952            01/01/70 00:00      
               952 vs SILabs            01/01/70 00:00      
         yes, but...            01/01/70 00:00      
            sure, but what then            01/01/70 00:00      
               Who said that?            01/01/70 00:00      
                  I did            01/01/70 00:00      
                     Idiot            01/01/70 00:00      
                        well, somebody had to teach them :(            01/01/70 00:00      
               Problem with that            01/01/70 00:00      
                  unnecessarily hard            01/01/70 00:00      
                     Explanation            01/01/70 00:00      
                        yes and no            01/01/70 00:00      
                           Maybe in a back chapter            01/01/70 00:00      
                              SoftICE            01/01/70 00:00      
                        The nature of learning            01/01/70 00:00      
                           of course, education is absorbing information AND            01/01/70 00:00      
                           comment or amplification            01/01/70 00:00      
                              the embedded printf            01/01/70 00:00      
                              Erik, we two might disagree in many points...            01/01/70 00:00      
                              The right tool for the Job            01/01/70 00:00      
                                 beginners should use the i805x            01/01/70 00:00      
                                 one more right tool for the job            01/01/70 00:00      
                              Clarification            01/01/70 00:00      
                                 comments on clarifications            01/01/70 00:00      
                                    Printfs            01/01/70 00:00      
                  maybe not so much ...            01/01/70 00:00      
                     comments/replies            01/01/70 00:00      
                  comments/replies            01/01/70 00:00      
   What about PLCC?            01/01/70 00:00      
      interesting, but ...            01/01/70 00:00      
         A PLCC Socket is solderable            01/01/70 00:00      
         OOPS            01/01/70 00:00      
            I was wondering...            01/01/70 00:00      
               PLC, not PLCC            01/01/70 00:00      
      better if socketed            01/01/70 00:00      
         Socketed - Yes            01/01/70 00:00      
            perhaps you have missed the point            01/01/70 00:00      
   multi-option implementation            01/01/70 00:00      
      Not much            01/01/70 00:00      
   It depends on the board quality ...            01/01/70 00:00      
   schmartboard            01/01/70 00:00      
   Supply PCB with only the smd micro placed            01/01/70 00:00      
   leave it            01/01/70 00:00      
      that makes sense to me ...            01/01/70 00:00      
   simple is still good....            01/01/70 00:00      
      why bother            01/01/70 00:00      
         last time I bought 32KB SRAM I paid $0.48US            01/01/70 00:00      
         use part of a bigger one            01/01/70 00:00      
            that's not really a problem...            01/01/70 00:00      
               it is a problem if you rely on DIL packaging            01/01/70 00:00      
                  what is your definition of "obsoleted"?            01/01/70 00:00      
                     Problem            01/01/70 00:00      
                        Have you seen this?            01/01/70 00:00      
                     Over the last year ...            01/01/70 00:00      
      Gee ... that thing really costs a lot ...            01/01/70 00:00      
         no, it does not            01/01/70 00:00      
            $50            01/01/70 00:00      
            I meant this one            01/01/70 00:00      
   Thanks for comments, keep them coming            01/01/70 00:00      
      nothing comes free...            01/01/70 00:00      
         or            01/01/70 00:00      
         No problem with other design            01/01/70 00:00      
      How about a mezzanine board ... and some tools?            01/01/70 00:00      
         with some really slick code ...            01/01/70 00:00      

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