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12/04/07 17:08
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 		 #147859 - If only USB were fast enough ...
Responding to: ???'s previous message
Grant Beattie said:
Too many BIOS inconsistencies over the years... large and crappy connector. RIP the parallel port. Hope I never see one again. USB is waaaaay better in all aspects as far as I'm concerned.

Same goes for ISA, EISA, etc... They were fun and interesting at the time (ISA and EISA, not LPT), but I am not sorry I don't "interface" with them anymore. They are as useful as that 8255 we all love talking about. ;-)




... and it's inherently capable of being fast enough ... Under Windows, however, the OS ignores some of the interrupts for minutes at a time ... I can't rely on it to operate at the right time ...

Yes, the LPT is one of those things we all love to hate ... If anything short of custom hardware would work as well, and as reliably, I'd probably try to use it. In the meantime, I'm really glad I can still move data between the old DOS machines with their parallel ports, and do so at a reasonable rate comaptible with real-world processes.

RE




List of 30 messages in thread
TopicAuthorDate
... ahem .... Has anyone used EPP mode lately?            01/01/70 00:00      
   EPP for what ? programming 8051            01/01/70 00:00      
      for ANYTHING at all            01/01/70 00:00      
         Its fast            01/01/70 00:00      
            Maybe, but ...            01/01/70 00:00      
   Scanners?            01/01/70 00:00      
      did you build the scanner?            01/01/70 00:00      
         Oh, I see            01/01/70 00:00      
   we've used it in the miniLA project            01/01/70 00:00      
      perhaps you've underestimated it            01/01/70 00:00      
         What's your PC programming environment?            01/01/70 00:00      
            I don't trust Windows ...            01/01/70 00:00      
               good idea - if ...            01/01/70 00:00      
                  With LPT in EPP mode ...            01/01/70 00:00      
                     that's not quite the case            01/01/70 00:00      
                  Windows doesn't like direct I/O            01/01/70 00:00      
                     there are ways...            01/01/70 00:00      
                        That's one of many pages ...            01/01/70 00:00      
                        inpout32.dll            01/01/70 00:00      
                           Really?            01/01/70 00:00      
                              It\'s moot, since I don\'t use Windows for that            01/01/70 00:00      
            Too much hassle            01/01/70 00:00      
               If only USB were fast enough ...            01/01/70 00:00      
               the workhorse            01/01/70 00:00      
   Only I can tell is, ...            01/01/70 00:00      
      Interesting ...            01/01/70 00:00      
         Believe me, I was also surprised!            01/01/70 00:00      
            '245's are schmidt triggered, aren't they?            01/01/70 00:00      
               schmitt trigger on '245?            01/01/70 00:00      
                  There must be room for doubt ...            01/01/70 00:00      

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