Re: H E L P!!! Serial Communications Blues... (UART).

Article View: comp.os.msdos.programmer

Article #6576

Back to comp.os.msdos.programmer Previous Next

#6576

From: Ilan Berkner
Date: Fri, 20 Nov 1992 01:07

5 lines
780 bytes

The UART will only signal an receive-interrupt when it has received data
from the outside, not the inside!  You must have a cable attached to
COM2 that runs from either COM1 or from another computer.  Sending data
to COM2 will not trigger a receive interrupt, since the UART hasn't
received anything!  It's transmitting something instead.

Technical Details

Message-ID: <1992Nov20.010747.19660@seas.gwu.edu>

Path: arc1-ca.pugleaf.net!sparky!uunet!seas.gwu.edu!ilan

References: <1992Nov19.143345.9313@iccgcc.decnet.ab.com>

Show Full Headers

Complete Article Headers

Newsgroups: comp.os.msdos.programmer,comp.sys.ibm.pc.programmer
Path: arc1-ca.pugleaf.net!sparky!uunet!seas.gwu.edu!ilan
From: ilan@seas.gwu.edu (Ilan Berkner)
Subject: Re: H E L P!!! Serial Communications Blues... (UART).
Message-ID: <1992Nov20.010747.19660@seas.gwu.edu>
Sender: news@seas.gwu.edu
Organization: George Washington University
References: <1992Nov19.143345.9313@iccgcc.decnet.ab.com>
Date: Fri, 20 Nov 1992 01:07:47 GMT
Lines: 5

Reply to Parent Message