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???
08/11/05 14:00
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#99198 - 16-bit, or Win9x only?
Responding to: ???'s previous message
Aubrey Kagan said:
http://www.edn.com/archives/1998/060498/12di.htm
see idea entitled "Implement a nine-data-bit UART on a PC"

The "real" stuff for dealing with the PC's UART is not shown, but I suspect it will involve hacking around with absolute port IO addresses.
You can get away with this in 16-bit MS-DOS/Win3x, and usually also in Win9x, but it gets increasingly unlikely to work in the NT derivatives (NT, 2000, XP).

The best way to do it is to find a proper driver; eg http://www.wcscnet.com/catalog/s...oducts.htm

List of 6 messages in thread
TopicAuthorDate
how can i connect RS-422 & RS-423            01/01/70 00:00      
   Get a commercial device?            01/01/70 00:00      
   some points            01/01/70 00:00      
      Here is one way of doing it            01/01/70 00:00      
         16-bit, or Win9x only?            01/01/70 00:00      
   here it is            01/01/70 00:00      

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