Path: utzoo!attcan!uunet!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!rpi!netserv2!deven From: deven@rpi.edu (Deven T. Corzine) Newsgroups: comp.sys.amiga.tech Subject: Re: Disk drive ready signal/drive clicking Message-ID: Date: 12 Apr 90 14:10:32 GMT References: <1732@eklektik.UUCP> <16639@estelle.udel.EDU> Organization: Rensselaer Polytechnic Institute, Troy, NY Lines: 26 In-Reply-To: new@udel.EDU's message of 12 Apr 90 12:17:58 GMT In article I write: Deven> Now what confuses me is this: WHY is stepping a track a Deven> requirement to update the signal?? On 12 Apr 90 12:17:58 GMT, new@udel.EDU (Darren New) said: Darren> I think the signal gets CLEARED when the drive is stepped. Darren> That is, once set, it stays set until the drive is stepped. Darren> Therefore, read the signal and then step the drive. The next Darren> insert or remove will set the signal again. -- Darren Meaning it's a latch bit set by a pulse when the disk is inserted and cleared when the drive is stepped? No, that can't work either; it still seems in any evet that the drive must "know" at some level whether or not there is a disk there... and it seems it must know whether or not you step the heads. So stepping the heads makes it tell the computer. Is this right? If not, what? If so, why? Deven -- Deven T. Corzine Internet: deven@rpi.edu, shadow@pawl.rpi.edu Snail: 2151 12th St. Apt. 4, Troy, NY 12180 Phone: (518) 274-0327 Bitnet: deven@rpitsmts, userfxb6@rpitsmts UUCP: uunet!rpi!deven Simple things should be simple and complex things should be possible.