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Mail Archives: djgpp/1999/07/27/04:47:03.1

From: Young Fan <youngcfan AT hotmail DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Using the modem control and status registers
Date: Mon, 26 Jul 1999 16:13:49 -0400
Organization: Nortel
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Message-ID: <379CC17D.8BD04B6F@hotmail.com>
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Hi,

I'm wondering what I need to do to receive signals properly through the
serial port MSR. I can send signals to the MCR, to pin 4 of the serial
port, but am having trouble reading this in at the other end. What do I
do to read properly what is sent through the MCR?

What I am doing is timing-sensitive. For example, I output 0x0f for a
certain length of time using inp() to the MCR, and then 0x00 for a
certain length of time. How would I read this in (I would use uclock()
to do the timing).

Any help as soon as possible, and especially any sample code for me to
look at, would be greatly appreciated. Thank you in advance.

P.S. Please note that I am not using standard UART serial
communications, since I need the signals to follow a certain timing
format, as opposed to any baud rate, etc.

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