Path: utzoo!attcan!uunet!decwrl!bacchus.pa.dec.com!shodha.enet.dec.com!elvira!ridder From: ridder@elvira.enet.dec.com (Hans Ridder) Newsgroups: comp.sys.amiga.hardware Subject: Re: A1000 & Kickstart ROMs Message-ID: <1800@shodha.enet.dec.com> Date: 10 Oct 90 15:58:03 GMT References: <942@sagpd1.UUCP> <90283.002406LEEK@QUCDN.QueensU.CA> Sender: news@shodha.enet.dec.com Distribution: comp Organization: Digital Equipment Corporation, Customer Support Center Lines: 27 In article <90283.002406LEEK@QUCDN.QueensU.CA> LEEK@QUCDN.QueensU.CA writes: >>>eproms and supposingly you could program Kickstart on four 27512's and with >>>a proper address decoding A1000 should be able to use the EPROMs instead >>>of loading Kickstart from the disk. > >The onboard 28-pin sockets can only support up to 256K worth of kickstart. To >get 2.0 rom, you'll need to make you own decoding logics. I don't remember all the details, but the guy who did the Rejuvinator had a Kickstart ROM board for the A1000. It uses the standard 1.3 Kickstart ROM. The Kickstart daughter board is removed, and the ROM board is plugged into the boot ROM sockets. Anyway, he brought out the extra address line (A19?) to a pad. He mentioned in the documentaion that this *would* be used when the 2.0 ROM's came out. I don't know how good he prophecy was, but this would seem to be a logical path to persue. The board was about US$20.00, and worked fine. >K. C. Lee >Elec. Eng. Grad. Student -hans ------------------------------------------------------------------------ Hans-Gabriel Ridder Digital Equipment Corporation ridder@elvira.enet.dec.com Customer Support Center ...decwrl!elvira.enet!ridder Colorado Springs, CO