Serial port resources

This page has been written on 10th September 2000 by Daniele Forsi.
Last update on 26th December 2000.
Comments are welcome.

I wrote this page after searching C source code to use the serial port under MS-DOS.
Here it is what I found using Google. I checked all the files which have a description, but most files are for old compilers, so using them might be difficult, to get help you can try to email me.

Site name/page title	filename	description	rx	tx	main

http://www.ece.uiuc.edu/ece291/class-resources/serial.html
Look this first New on 2000/12/26	(none)	By Christian Blum. Date 22-Mar-95, version 18. Detailed background information on th serial port with assembler and C examples : "Regard this file as a manual for the serial port of your PC for both hardware and software."	i,p	i,p	n

Interrupt-Driven Serial Port I/O Package
New on 2000/12/26	(none)	By Randall Hyde. Date unknown. Description of assembler routines for both polled and interrupt driven I/O.	x	x	n

Programming.Source.C
	sercomm.arj	I wasn't able to make it work.			y
	serterm.arj	I wasn't able to make it work.			y
	temkerm.arj	I wasn't able to make it work.			y
	zmodem_c.arj
Bob Stout's SNIPPETS
	MODEMIO.C MODEMIO.H	By Curtis Paris 16-dec-92 and Bob Stout 12-mar-94. Serial port setup. DTR.	i,p	d,p	n
	QUEUE.C QUEUE.H SERIAL.C SERIAL.H	By Scott Andrews 29-aug-94 Serial port setup. DTR.	i	i	n
Dateien in -ftp-pub-simtelnet-msdos-io_utils-
	comm.c comm.doc	by Bennett Todd assembler and C for DeSmet C compiler Small terminal program, no serial port setup, check if char present, old.	i	d	y
Look this first (receive only)	kbfake10.zip KBFAKE.C KBFAKE.EXE	C source and executable for a TSR implementing a "serial keyboard" (characters received from the selected serial port are inserted in the keyboard buffer as if they were typed locally).	i	n	y
	port11.zip PORT.DOC PORT.C PORT.EXE PORT.PRJ PORT.DSK INIT	By John De Armond 13-mar-91 C source for Borland C++ 2.0 but with no C++ constructs, doc, executable and support files for a program to work with any input or output port (not only the serial port).	d	d	y
C Programming
	comm-tc2.zip COMM_TC2.C COMM_TC2.DOC	By Kevin R. Bulgrien feb-89 Turbo C source and doc for a small terminal program. Serial port setup.	b,i	b,p	y
Sample C-C++ Source Code
	readport.c	Read from a generic I/O port using inp().	d	x	y
	writport.c	Write to a generic I/O port using outp().	x	d	y

Site name/page title	filename	description

PC connectors - RS-232C
Look this first New on 2000/12/26	http://www.geocities.com/SiliconValley/9210/gkcon1.html	Author: Giovambattista Pulcini DB9 male and female; DB25 male and female; null modem cable; laplink cable. Updated: unknown

COM (Serial) port
New on 2000/12/26	http://www.phm.lu/documentation/connectors/Serial.asp	Author: Philippe MAJERUS DB9 male; DB25 male; RJ-45; explanation of signals; IRQ table. Updated: unknown

ICONICS UK Ltd. - articles/KB/KB00030700
New on 2000/12/26	http://www.iconics.demon.co.uk/support/articles/KB/KB00030700.htm	Author: Iconics UK Ltd. DB9; DB25. Updated: 2000/03/07


b	blocking	Your program can't continue before the operation is complete.
d	direct	It is an atomic operation (completed immediately).
i	interrupt	The action is interrupt driven.
n	no	The feature is not present.
p	polling	You must check before starting or to see if it is completed.
x	not present	It makes no sense or is not applicable.
y	yes	The feature is present.
?	unknown	I just don't know.

New on 2000/12/26	Assembler routines
New on 2000/12/26	Background explanation
New on 2000/12/26	Links to connectors layout.