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Path: blue.weeg.uiowa.edu!news.uiowa.edu!hobbes.physics.uiowa.edu!math.ohio-state.edu!usc!howland.reston.ans.net!europa.eng.gtefsd.com!newsxfer.itd.umich.edu!isclient.merit.edu!msuinfo!harbinger.cc.monash.edu.au!news.cs.su.oz.au!metro!news.ci.com.au!wabbit.cc.uow.edu.au!wabbit.cc.uow.edu.au!not-for-mail From: david@zircon.cs.uow.edu.au (David E A Wilson) Newsgroups: comp.sys.apple2 Subject: Re: Any Transwarp (//e) users out there? Date: 22 Sep 1994 10:57:40 +1000 Organization: University of Wollongong, NSW, Australia. Lines: 53 Message-ID: <35qkq4$e3l@zircon.cs.uow.edu.au> References: <CwG474.JzM@pts.mot.com> NNTP-Posting-Host: zircon.cs.uow.edu.au kburtch@pts.mot.com (Kevin Burtch) writes: >I just got a //e, and was wondering a few things about the Transwarp card >that came with it. I already found, by experimentation, that by hitting the >ESC twice as "Transwarp" is displayed at powerup I can switch it back to low >gear. (so to speak) Also you can press 0 or 9 while the logo is displayed and it will run the built in self test (the 9 puts up a copyright message first). Now why does this not get a mention in the manual?? >First, just how fast is this thing? I can't find a clock on the card, so I'm >guessing it uses the 3.5MHz signal from the slots. (am I even close?) The manual says 3.6MHz (near enough to 3.58 I guess) while the self test shows 3.3 for full speed and 2.1 for half speed (strange - I would have expected less than 1.7). >Second, am I right about using ESC twice at bootup being the only way to slow >it down? After I hit CONTROL-RESET, it speeds back up, just like it says when >you use the ESC trick. ;^) Is there a POKE or anything I can use from BASIC, or >assy? How do I speed it back up? Is CONTROL-RESET and power-off/on the only way >to change the speed? (I'd rather not have to cycle the power every time...) Pressing ESC disables the Transwarp completely. A poke of 3 to $c074 does the same. The two switch #8 select the default speed (1/1.7/3.6MHz). A poke of 1 to $c074 will slow the TW down to 1MHz using the TW CPU. >Third, what are the switches for? What are the options? (this one is important) >I know there are two sets of eight swiches, but I really need to know. I assume >that some are for disabling the accellorator when accessing certain slots, like >the floppy controller, etc. I really appreciate this one! Yes. The left bank tells the TW which slots have RAM cards (16k/128k etc). The right bank tells the TW which slots have slow cards (floppy disks, clocks etc). Slot number as per switch number. Off means full speed (I think - I will double check the manual when I get home). >Fourth, it has 256k onboard, is this used in a "shadow" fashion, or can I use the >extra RAM somehow? A lot of programs that came with this machine are configured >for the 1Meg Ramworks II card in the AUX slot. Is it possible to use both the >Transwarp's 256k and the Ramworks II's 1Meg in addition to the 64k onboard? Yes, it shadows all of the m/b RAM (64k), the ROM (16k), the aux RAM (multiple banks of 64k). I guess if you have more than 128k of aux RAM it will have to start caching. If you have a ][+ you can put the TW in slot zero and use it as your language card (provided you do not disable it with ESC or the poke). >Finally, is there a disk that should have come with the Transwarp? Drivers, or >utilities or something? (I don't have one, or a manual) I bought mine at ICONfest and it only had the manual. I like my Zip chip a little better as it saves me a slot and runs at 8MHz. Now I have two genuine //e computers that are accelerated.