Date   : Fri, 30 Dec 1988 18:50:51 GMT
From   : ima!cfisun!lakart!dg@decvax.dec.com (David Goodenough)
Subject: Accessing the modem on a C 128 in CP/M mode

I have a C128, and a CP/M terminal program. I want to configure the
terminal program to talk to the modem (1670) attached to my 128. Does
anyone have ANY ideas at all as to how to do this. The following
are necessary:

MODEM input status  : how can I tell if a character is ready to read
MODEM input        : how do I get a character from the modem once the
                     routine above has told me it's ready
MODEM output status : how do I tell if the modem is able to accept
                     another character
MODEM output        : how do I give a character to the modem once I know
                     it can take one.

I'll take any suggestions at all - If you have MODEM740 or IMP (or MEX
or anything) running I'll take that. I'm looking for any ideas at all.

Other optional things that would be nice are:

BREAK : how do I start and stop a break condition on the modem
DTR   : how do I enable and disable DTR (this is used to hang up the modem)
BAUD  : how do I change the baud rate (1200 / 300 selection will be enough
       or even just 1200 alone)
MODE  : how do I change the communications mode (# data bits, # stop bits
       parity etc.)

Please E-mail me with responses, I'll forward anything I get to anyone that
asks. Also please E-mail to the address below, rather than to where this
article came from.

       Thanks in advance,
-- 
       dg@pallio.UUCP - David Goodenough               +---+
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       ....... !harvard!xait!lakart!pallio!dg          +-+-+ |
AKA:   dg%pallio.uucp@cfisun.cfi.com                     +---+