Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!rutgers!clyde!cuae2!wucs1!wucs2!br From: br@wucs2.UUCP (Bill Ross) Newsgroups: comp.sys.m68k Subject: help! Message-ID: <539@wucs2.UUCP> Date: Mon, 15-Dec-86 18:06:42 EST Article-I.D.: wucs2.539 Posted: Mon Dec 15 18:06:42 1986 Date-Received: Wed, 17-Dec-86 04:50:25 EST Distribution: na Organization: Washington University, St. Louis Lines: 31 I'm planning to build a small 68k board as an educational project and as something fun to do in my spare time. My background is pretty good but I have never built anything this ambitious before. If anyone can offer any wisdom/advice please send me mail. Is dynamic ram too much of a hassle because of the refresh? What memory management chip should I use to simplify my refresh etc..? What is the easiest way to fabricate this beast? Wirewrap? Point to point solder? I will probably want nothing but a couple of serial ports to start out with. What is the best uart for me to use? Will I want to remap my ROMs to higher addresses after bootup? How is this best achieved? What is the fastest clock speed I should try for without creating timing problems etc... I was thinking of 4Mhz as pretty safe. Are there standard locations for ROM, peripherals and such that I should use so as to be compatible? All comments appreciated! Billy -- Bill Ross Washington University ECL, St. Louis 314-889-5894 UUCP: br@wucs.UUCP or ..!{ihnp4,seismo}!wucs1!br ARPANET: wucs!br@seismo.ARPA CSNET: wucs!br@seismo.ARPA%csnet-relay