Date: Sat, 3 May 1997 01:37:45 -0700 From: John-Mark Gurney <jmg@hydrogen.nike.efn.org> To: Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de> Cc: hackers@FreeBSD.ORG Subject: Re: WD and SD drives with NCR 53C400 card Message-ID: <19970503013745.42576@hydrogen.nike.efn.org> In-Reply-To: <19970503092932.MV50905@uriah.heep.sax.de>; from J Wunsch on Sat, May 03, 1997 at 09:29:32AM %2B0200 References: <Pine.BSF.3.96.970502203441.11527H-100000@Kryten.nina.org> <19970502203633.45646@hydrogen.nike.efn.org> <19970503092932.MV50905@uriah.heep.sax.de>
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J Wunsch scribbled this message on May 3: > As John-Mark Gurney wrote: > > > it should work fine... just use the nca device driver... the T130B is an > > 8bit board based on the NCR53C400 or Zilog chips right? > > > > I had a similar board that I used for scsi before I got a real scsi card... > > I never had any luck using the cheap NCR 53C400-based boards that > accompany HP ScanJets. This might be a question of finding the > correct IO port number for them, since these boards are undocumented. > Does anybody have a list of IO addresses for them? At least, the > usual port numbers mentioned in GENERIC didn't work. well.. my T130 docs mention 0x350, 0x340, 0x250, 0x240... you might try something like hacking the driver to try a struct of addresses, and give most of the free areas to that struct... you just might be lucky... > (The boards are no doubt 53C400, so the nca driver should work.) I have a T128 which has a NS5380, which I believe is suppose to be similar to the NCR53C400 parts... but their performance is terible, that I never spent much time... If I remeber right, a simple double speed cdrom drive would take my old 486/dx40 to it's knees... something like 83-87% cpu time for the card... and I still didn't get max throughput on the cdrom... definately invest the money in a real scsi card... they are just so you can get scsi cdroms and then justify the future purcase of a real scsi card :) -- John-Mark Cu Networking Modem/FAX: +1 541 683 6954 Live in Peace, destroy Micro$oft, support free software, run FreeBSD
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