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From: neg@NRC.COM (Neal Goldsmith)
Newsgroups: comp.sys.mac
Subject: DeskWriter buffer overrun with Radius 16 Accelerator
Keywords: DeskWriter, Radius
Message-ID: <386@nrcvax.NRC.COM>
Date: 22 Oct 89 18:09:22 GMT
Reply-To: neg@nrc.com (Neal Goldsmith)
Organization: Network Research Corp., Oxnard CA
Lines: 34


I just added a Radius 16 accelerator to my Mac+ and I'm now having problems
using my DeskWriter. Any time I print more then one page of text, the printer
will print the first page, then bomb out with a "Datacomm buffer overrun -
no DTR handshaking." I have check the cable, connections, connectors, and even
tried a shorter cable. No Luck.

Before the upgrade, the printer would wait for the Mac, now it appears to be
the other way around. Help! I'm not sure who's at fault, the printer/driver or
the accelerator not passing SCC interupts fast enough.

My Configuration is:

	Macintosh Plus
	4 Megs
	Radius 16 (68020 16mhz, no fpu, Rev 2.0+, driver rev 2.5)
	HP DeskWriter
	Seagte 80mb 28ms

I have considered hacking up an init to slow down the output, however, this
is less then desirable. The DeskWriter run at 57.6k baud, and I'm not sure
it's using the serial driver.

Please e-mail any ideas, I will summerize them and post them.




-- 
  Neal E. Goldsmith                            Network Research Corp
  neg@nrc.com                                  1620 Federal Ave #2
                                               Los Angeles, CA 90025
                                               (213)479-6436

  If you ride into the sunset from Los Angeles, you'll just get wet...