Date: Fri, 09 Apr 1999 01:37:04 +0200 From: "Julian H. Stacey" <jhs@jhs.muc.de> To: tarkhil@asteroid.svib.ru Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: Lots of questions about PLIP Message-ID: <199904082337.XAA02360@jhs.muc.de>
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Resend after bounce, apologies if by chance you get 2. Reference: > From: Alex Povolotsky <tarkhil@asteroid.svib.ru> > > 1. What cable is used to PLIP? I.e. is http://www.freebsd.org/FAQ/FAQ38.html > still relevant? No idea what that page contains, I never looked, I didn't need to ! Even those who can't read C, can read the nice comment in the C file: /usr/src/sys/i386/isa/lpt.c * Connect the two computers using a Laplink parallel cable to use this * feature: * * +----------------------------------------+ * |A-name A-End B-End Descr. Port/Bit | * +----------------------------------------+ * |DATA0 2 15 Data 0/0x01 | * |-ERROR 15 2 1/0x08 | * +----------------------------------------+ * |DATA1 3 13 Data 0/0x02 | * |+SLCT 13 3 1/0x10 | * +----------------------------------------+ * |DATA2 4 12 Data 0/0x04 | * |+PE 12 4 1/0x20 | * +----------------------------------------+ * |DATA3 5 10 Strobe 0/0x08 | * |-ACK 10 5 1/0x40 | * +----------------------------------------+ * |DATA4 6 11 Data 0/0x10 | * |BUSY 11 6 1/~0x80 | * +----------------------------------------+ * |GND 18-25 18-25 GND - | * +----------------------------------------+ I soldered my cable per the comment, & it works fine. I recall I get about 700Kbit/sec. PLIP does do a kernel crash with one of my 5 boxes though (the 200MHz 586 FreeBSD-3.1 box, the other 4 slower OK boxes are 2.2.8, I think I'm using the older obsolete parallel driver though on 3.1, & need to try new one (Ref. LINT & GENERIC)). (just FYI, & I'm not complaining/asking for help). > 2. Does EPP or ECP modes enhance PLIP performance? No idea, I'm ignorant, Would be nice if someone could document all the different parallel acronyms (& put it in man [lpt]). > 3. Are there any DOS or Win95 drivers compartible with PLIP? Linux yes, I recall, no idea about Micro$oft. As 8 bit ISA ether cards are sold at electronic flea markets for about the same price as a glass of beer, there comes a time when non standard solutions get to be too much hastle, buy ether if you can. Reason I use PLIP is for my laptop, for which a PCMCIA would have cost 30 glasses of beer @ 1 off bar prices (not crate prices). An old cheap/scrap minimal 386 will gateway a BSD PLIP + add a 1 beer 8 bit ether card ... & connect on to ether connected Micro$oft boxes <Shudder> ;-) Julian Julian H. Stacey http://www.freebsd.org/~jhs/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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