Xref: utzoo alt.msdos.programmer:884 comp.sys.tandy:1897 comp.sys.ibm.pc:39823
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uunet!tut.cis.ohio-state.edu!sppy00!jmv
From: jmv@sppy00.UUCP (Jim Vickroy)
Newsgroups: alt.msdos.programmer,comp.sys.tandy,comp.sys.ibm.pc
Subject: Re: HELP!!!!!!
Message-ID: <649@sppy00.UUCP>
Date: 12 Dec 89 19:53:46 GMT
References: <89346.001555DGH103@PSUVM.BITNET>
Reply-To: jmv@sppy00.UUCP (Jim Vickroy)
Organization: Online Computer Library Center, Dublin, Ohio.
Lines: 50

In article <89346.001555DGH103@PSUVM.BITNET> DGH103@PSUVM.BITNET writes:
=>not the problem. What I want to do is write a program that I will run when I am
=>going to use ProComm that will switch from the com port to the modem. I have

=>                          I/O Address Map
=>System Status Register
=>
=>    Address         Bit      Contents                      Control
=>
=>(Write Register)
=>    0FCH             2       Modem/RS-232C Switch        1/Modem,0/RS-232C
=>
=>Can anyone help me? Any help would really be appreciated!!
=>

From the "man" page you included above it looks like you need to tweek 
port 0FCH to switch to either the modem or the RS232 port. Try this:

    ;
    ; Switch to modem
    ;
    IN	    AL,0FCH
    OR	    AL,02H
    OUT	    0FCH,AL
    
    ;
    ; Switch to RS232
    ;
    IN	    AL,0FCH
    AND	    AL,0FDH
    OUT	    0FCH,AL

Now you'll have to build the rest of the logic around these segments. The
same could easily be done in 'C'.

jim
--
==============================================================================
:::: ::: ::  ::   :    :   Jim Vickroy
|OC| ||| ||  ||   |    |   Telecommunications Systems Engineering
|LC| ||| ||  ||   |    |   Online Computer Library Center, Inc.
:::: ::: ::  ::   :    :   Dublin, Ohio
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