halp@TCGOULD.TN.CORNELL.EDU ("Bruce P. Halpern") (05/26/87)
My Apple Unidisk 3.5, with controller in slot 7, do not boot at power-up in either ehnanced or unenhanced ][e, but do in a ][c if there is no floppy in the built-in drive. The ][e will boot ProDOS from the Unidisk 3.5, controller in slot 7, in response to a PR#7 command. To boot PASCAL, the controller card must be at 6 or 5. re: Obtaining 65C02. Previous discussions on this BB indicate that the 65C02 can simply be plugged in, replacing the 6502. For more conservative types, like me, an Applied Engineering Transwarp card in slot 3 will get you a 65C02 and computing at 3.5 MHz (faster than a ][gs).
ranger@ecsvax.UUCP (Rick N. Fincher) (05/26/87)
In article <8705260145.AA09208@tcgould.TN.CORNELL.EDU>, halp@TCGOULD.TN.CORNELL.EDU ("Bruce P. Halpern") writes: > My Apple Unidisk 3.5, with controller in slot 7, do not boot at power-up in > either ehnanced or unenhanced ][e, but do in a ][c if there is no floppy in the > built-in drive. The ][e will boot ProDOS from the Unidisk 3.5, controller in > slot 7, in response to a PR#7 command. To boot PASCAL, the controller card must > be at 6 or 5. Your drive or card must be defective, the 3.5 should boot in the enhanced //e from slot 7 (or any other). If there is no disk in the drive it will pass control down to the next lowest slot with a disk controller. Rick Fincher ranger@ecsvax >
halp@TCGOULD.TN.CORNELL.EDU.UUCP (05/27/87)
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Date: 26 May 87 14:49:27 GMT
From: "Rick N. Fincher" <ecsvax!ranger@mcnc.ORG>
Organization: UNC Educational Computing Service
Subject: Re: 3.5 inch drives
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Just a point of interest. No 3.5 inch drives, Apple's included will
boot on an unenhanced //e. Don't let this deter you from the Central
Point drives and controller board.
Rick Fincher
ranger@ecsvax
If boot means automatically begin to read at power-up, the statement is correct. However, if it is taken to mean become the prefix volume, in ProDos terms, then it is not correct. My unenhanced ][e will, upon receiving a PR#7, boot from the Apple Unidisk 3.5 that has a controller in that slot.
My enhanced ][e, which also has its Apple Unidisk 3.5 controller in slot 7, will boot ProDos programs on the 3.5 drive at power-up. Note that this will not work for Apple Pascal. With Pascal, the controller must be in a slot lower than #7.
halp@tcgould.tn.cornell.edu
HALP@CRNLTHRY.BITNETcssu@cdfb.utoronto.UUCP (05/27/87)
> > Finally, since I am considering enhancing my IIe (I want the 65C02, I > don't want the chargen ROM, and I need the two monitor ROMs), does > anyone know of any programs that will break if I enhance? Can I install > the 65C02 and the two monitor ROMs and keep my old chargen ROM? What > do I give up by enhancing? I know that I lose the self tests - anything > else? > There is a neat trick to have the best of both worlds at the flick of a switch. The //e ROMs are 64K, and I think the Char Gen is the same. To have both the enhanced and the unenhanced //e, what you do is to burn your own EPROMS. I have a friend who did this trick... He burned the unenhanced //e ROMS in the lower 64K of a 128K EPROM (27128), and the enhanced //e ROMS in the upper 64K. He then put a toggle switch to change the high bit to select either the lower or the upper half of the 27128. Apparently the pinouts for a 2764 (what the Apple //e ROMS are, I believe), and the 27128 are very similar. So, at the flick of a switch, you can switch between an enhanced and an unenhanced //e. The Char Gen had the same trick. The difference there is that one have Inverse characters, the enhanced has Mousetext characters... He rigged the switch so that both ROMs are switched at once... --Tak ----------------------------------------------------------------------------- UUCP: {utzoo, decvax, ihnp4, cbosgd, utcsri, mnetor}!utgpu!cdfc!cssu ARPAnet: cssu%cdfc.toronto.edu@relay.cs.net CSnet: cssu%cdfc.toronto.edu BITNET: cssu@cdfc.UTORONTO == University of Toronto -- Toronto, Canada == -----------------------------------------------------------------------------
halp@TCGOULD.TN.CORNELL.EDU.UUCP (05/27/87)
From info-apple-request@BRL-SMOKE.arpa Tue May 26 18:59:34 1987 Received: by tcgould.TN.CORNELL.EDU (5.54/1.2-Cornell-Theory-Center) id AA07567; Tue, 26 May 87 18:58:57 EDT Received: from BRL-SMOKE.ARPA by SMOKE.BRL.ARPA id ac20647; 26 May 87 13:56 EDT Received: from UCBVAX.Berkeley.EDU by SMOKE.BRL.ARPA id aa20566; 26 May 87 13:44 EDT Received: by ucbvax.Berkeley.EDU (5.57/1.25) id AA27034; Tue, 26 May 87 10:39:47 PDT Received: from USENET by ucbvax.Berkeley.EDU with netnews for info-apple@brl.arpa (info-apple@brl.arpa) (contact usenet@ucbvax.Berkeley.EDU if you have questions) Date: 26 May 87 15:24:38 GMT From: "Rick N. Fincher" <ecsvax!ranger@mcnc.ORG> Organization: UNC Educational Computing Service Subject: Re: 3.5 inch drives Message-Id: <3207@ecsvax.UUCP> References: <8705260145.AA09208@tcgould.TN.CORNELL.EDU> Sender: info-apple-request@BRL.ARPA To: info-apple@BRL.ARPA Status: O In article <8705260145.AA09208@tcgould.TN.CORNELL.EDU>, halp@TCGOULD.TN.CORNELL.EDU ("Bruce P. Halpern") writes: > My Apple Unidisk 3.5, with controller in slot 7, do not boot at power-up in > either ehnanced or unenhanced ][e, but do in a ][c if there is no floppy in the > built-in drive. The ][e will boot ProDOS from the Unidisk 3.5, controller in > slot 7, in response to a PR#7 command. To boot PASCAL, the controller card must > be at 6 or 5. Your drive or card must be defective, the 3.5 should boot in the enhanced //e from slot 7 (or any other). If there is no disk in the drive it will pass control down to the next lowest slot with a disk controller. Rick Fincher ranger@ecsvax > It was my memory (aging biological RAM) that was defective. As you said, it (ProDos) does boot on the enhanced ][e from slot 7. The unenhanced requires a PR#7. halp@tcgould.tn.cornell.edu
halp@batcomputer.UUCP (05/27/87)
Summary:On enhanced ][e, Unidisk 3.5 WILL boot from slot #7 Sender:halp@tcgould.tn.cornell.edu HALP@CRNLTHRY.BITNET In article <8705260145.AA09208@tcgould.TN.CORNELL.EDU> halp@TCGOULD.TN.CORNELL.EDU ("Bruce P. Halpern") writes: >My Apple Unidisk 3.5, with controller in slot 7, do not boot at power-up in >either ehnanced or unenhanced ][e, but do in a ][c if there is no floppy in the >built-in drive. The ][e will boot ProDOS from the Unidisk 3.5, controller in >slot 7, in response to a PR#7 command. To boot PASCAL, the controller card must >be at 6 or 5. Contrary to my assertion given above, my Apple Unidisk 3.5, with controller in slot 7, WILL boot ProDos programs at power-up in an ENHANCED (i.e., new ROMS and6565C02) ][e. Just the 65C02 is not sufficient, since my unenhanced ][e, with a AE Transward (which supplies a 65C02) in slot 3, requires a PR#7 to boot from the 3.5 controller in its slot 7.
ranger@ecsvax.UUCP ("Rick N. Fincher") (05/27/87)
Hal, Your message was garbled when it arrived, can you send it again? (rin refer- ence to 3.5 drives). Rick Fincher ranger@ecsvax
ranger@ecsvax.UUCP ("Rick N. Fincher") (05/27/87)
Hal, just read your second message, iugnore my last reply! Thanks Rick