Path: utzoo!mnetor!uunet!husc6!mailrus!nrl-cmf!ames!killer!elg From: elg@killer.UUCP (Eric Green) Newsgroups: comp.sys.cbm Subject: Re: C128-1571-1541-1525 combination hangs serial bus? Message-ID: <4014@killer.UUCP> Date: 8 May 88 04:54:10 GMT References: <2868@tekgen.TEK.COM> Organization: The Unix(R) Connection, Dallas, Texas Lines: 18 in article <2868@tekgen.TEK.COM>, stephenc@tekgen.TEK.COM (Stephen Coan ) says: > replace my aging 64. The problem is that when I hook up both drives and > the printer to either the 64 or the 128, I cannot use the printer, or the > drive at address 9. > > The printer is a Sekosha C100 (1525 compaitble I believe) and works as a > 1525 with GEOS. The Seikosha is probably the problem. Big-name printer manufacturers have been notably unuccessful in their attempts to duplicate the Commodore serial bus routines (probably because timing for those routines is so flaky.... . e.g. the notorious four NOP's for the output-a-byte routine). Try borrowing someone else's printer temporarily, and see if that solves the problem. -- Eric Lee Green elg@usl.CSNET Snail Mail P.O. Box 92191 ihnp4!killer!elg Lafayette, LA 70509 "Is a dream a lie that don't come true, or is it something worse?"