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???
02/15/05 00:56
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#87464 - ISP is easier than..
Responding to: ???'s previous message
ISP - At it's simplest, 4 bits of wire, and DB25 shell, a couple resistors, and some free software. Uses chips that I have to mail order, minimum order $25 plus shipping. Plain old parallel programmed pulls are less than a buck each at the local "chip junk yard". As a hobbist, I can prototype with them faster and cheaper, provided I can make use of them. To do that, I'd need a programmer. Were I to take a prototype to production... ISP for sure.


Only rxd and txd (and its rs232 driver anyway needed in most cases) needed and push the prog button before the reset one. (you need two fingers but no special cable).
RS sells in one pcs for less than this $25 and RS is expensive (at least here in spain)

Regards

List of 22 messages in thread
TopicAuthorDate
An 8051 programmer using 8051            01/01/70 00:00      
   ISP?            01/01/70 00:00      
   Wellcome to the year 2005!            01/01/70 00:00      
      Fully described in Atmel App Note!            01/01/70 00:00      
   My old version:            01/01/70 00:00      
   why            01/01/70 00:00      
      a record?            01/01/70 00:00      
         Unjustified votes            01/01/70 00:00      
         Amusing...            01/01/70 00:00      
            ?            01/01/70 00:00      
            Rob            01/01/70 00:00      
               substantially unchanged - not so            01/01/70 00:00      
                  Yea... But...            01/01/70 00:00      
                     because            01/01/70 00:00      
                        True...            01/01/70 00:00      
                           ?            01/01/70 00:00      
                              get samples....            01/01/70 00:00      
                     ISP is easier than..            01/01/70 00:00      
                        and here too            01/01/70 00:00      
   Developing countries            01/01/70 00:00      
      that is sad, but if you give in...            01/01/70 00:00      
         Not True - ICs are easily Avai in Mumb            01/01/70 00:00      

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