Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watmath!clyde!rutgers!cbmvax!fred From: fred@cbmvax.UUCP Newsgroups: comp.sys.cbm Subject: Re: 1581 disk drive Message-ID: <2441@cbmvax.UUCP> Date: Thu, 1-Oct-87 13:51:07 EDT Article-I.D.: cbmvax.2441 Posted: Thu Oct 1 13:51:07 1987 Date-Received: Sat, 3-Oct-87 06:32:21 EDT Organization: Commodore Technology, West Chester, PA Lines: 30 > 2) The 1581 seems not to need "Inquire disk" before a burst access. "Inquire > disk" is absolutely necessary (except when just turned on) with a 1571 disk > drive - it seems to use a hardware flag which can only be set by "Inquire > disk". This is due to a 1571 disk being either GCR or MFM encoded. Since the 1581 is strictly MFM it is superfluous. > ***3) Strange chunks of data have been chopped off the end of large files I > have saved on the 1581 drive. Has anyone else had a problem with this? It > seems to chop off around line 370 on my wordprocessor (370x80 bytes) - is > this a <> bug? This is not typical- but similar problems have been reported by a few folks. So far, nothing can be duplicated here- I've even had units sent to me along with demo programs only to have no problems while in my warm, comforting hands. I assume by now everyone knows to turn ON or disconnect the serial cable from peripherals- this can cause things like you report. What word processor were you using, and is this the only place you have a problem? Have you access to a friend's (or maybe a dealer's) 1581 and/or C128 to experiment? I can use all the info you can offer- help me help you. -- -- Fred Bowen uucp: {ihnp4|rutgers|caip}!cbmvax!fred arpa: beats me tele: 215 431-9100 Commodore Electronics, Ltd., 1200 Wilson Drive, West Chester, PA, 19380