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From: slsw2@cc.usu.edu
Newsgroups: comp.sys.handhelds
Subject: HP-48 UART from ML?
Message-ID: <1991Feb8.133803.46834@cc.usu.edu>
Date: 8 Feb 91 19:38:02 GMT
Lines: 19

When I bought my HP-48, I was hoping to be able to use it to control SDI-12
instrumentation. SDI-12 is a 1200 baud standard for things like intelligent
voltmeters, pressure transducers, etc. I've got a box that converts RS232
to SDI-12, but the timing of the RPL UART interface is such that I can't use
the calculator for this; SDI-12 instruments detect the end of a frame by the
time between characters and the HP-48 sends a string out two characters at
a time with a big space between. 

So, does anybody know how the UART works at the ML level so that I can play
with it that way or do I get to disassemble the code and figure it out for
myself?
-- 
===============================================================================
Roger Ivie

35 S 300 W
Logan, Ut.  84321
(801) 752-8633
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