Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!andrea
From: andrea@sdd.hp.com (Andrea K. Frankel)
Newsgroups: comp.sys.hp
Subject: Re: How can I turn on Xon/Xoff if HPGL plotter
Message-ID: <1991Jun20.211930.7690@sdd.hp.com>
Date: 20 Jun 91 21:19:30 GMT
References: <3471@unccvax.uncc.edu>
Organization: Hewlett-Packard, San Diego Technical Graphics Division
Lines: 30

In article <3471@unccvax.uncc.edu> cs00wsc@unccvax.uncc.edu (Wen-Shiang Chin) writes:
>Hi,
>	I have a HP Prodraft DXL plotter was connected a HP 300

I assume you meant the HP DraftPro DXL.

>I read the sony document and it says the data flow is
>using a Xon/Xoff handshaking method. My question is how can I
>set the Xon/Xoff on within the hpgl file. 

The quickest thing to try is to send <esc>.P, where <esc> is ASCII 27 or
0x1B, the escape character.  This sets up a number of Xon/Xoff
parameters which work in a wide variety of cases, but not in all.  If
<esc>.P doesn't solve your problem, you'll need to use the <esc>.I,
<esc>.N, and <esc>.M commands to set various parameters.

This can all be found in the HP DraftPro DXL/EXL Plotters Programmers
Reference Manual, pages 4-17 through 4-19.

Have fun!


Andrea Frankel, Hewlett Packard, San Diego Technical Graphics Div., R&D Lab
	"wake now!  Discover that you are the song that the morning brings..."
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