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???
10/14/07 11:33
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 		 #145746 - pin driver not necessary...
Responding to: ???'s previous message
... for a single-purpose device ("EPROM programmer").

This is exactly how a lot of EPROM programmers was designed in the past - they were not universal pindrivers, rather, they had dedicated data and address bus and control signals, and power switches to only a few pins (to support the 2-3 common pin numbers of EPROMs).

Of course, they then could be used as universal device programmers only using adapters; but that's an another issue.

JW

PS. <advertisement>I know of no obsolete device my favorite <$$$$$ Elnec universal programmer could not program; and if such occurred in the past, they were very quick in implementing it on request (read: a couple of days, if they can dig out the programming specs and a specimen to test on). I admit you have to buy adapters for non-DIL packages but that's still in the $$$ range. They may lack the "mission critical" label the $$$$$+ DataIO gadget you mentioned possesses, I admit.</advertisement>

List of 30 messages in thread
TopicAuthorDate
8052 as EPROM programmer            01/01/70 00:00      
   there's much more in an EPROM programmer...            01/01/70 00:00      
      Serial EEPROM programmer            01/01/70 00:00      
         89c51 And USB port            01/01/70 00:00      
      spesific location            01/01/70 00:00      
         try links from...            01/01/70 00:00      
            Didn't found it            01/01/70 00:00      
               two clicks away            01/01/70 00:00      
      Pin Driver            01/01/70 00:00      
         Actually ...            01/01/70 00:00      
            pin driver not necessary...            01/01/70 00:00      
               definitions ...            01/01/70 00:00      
                  To complicated            01/01/70 00:00      
                     It doesn\'t have to be complicated            01/01/70 00:00      
                        Counter address and data serial to parallel            01/01/70 00:00      
                           ... and a timer            01/01/70 00:00      
                              Software at PC is great problem            01/01/70 00:00      
                                 No PC software necessary?            01/01/70 00:00      
                                    did you had info similiar project            01/01/70 00:00      
   Which EPROM types?            01/01/70 00:00      
      For Flash...            01/01/70 00:00      
   EPROM still alive ?            01/01/70 00:00      
      Another Scrapheap Challenge?            01/01/70 00:00      
         old 27CXXX(UV Eprom)            01/01/70 00:00      
            this is what I'm talking about            01/01/70 00:00      
      yes            01/01/70 00:00      
   Did someone had info about Eprom programmer            01/01/70 00:00      
      What more do you need?            01/01/70 00:00      
   How to download the hex file into 8051.            01/01/70 00:00      
      faq            01/01/70 00:00      

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