bloomer@dspuv2.steinmetz (john bloomer) (03/22/89)
we've all seen lots of PC AT/XT bus support for prototyping h/w even with decoder logic etc on-board. does the same exist for the Nubus - or does the complexity of the slot manager etc. make it the real challenge? what i really want is a Nubus form factor board, at least an application note to help getting on and off the bus, and a start at some LightSpeed C support code. if it comes w/ decoder logic etc., all the better. my application requires reading and writing 1MHz 16-bit parallel words, watching a timer (VIA) and logging results. i would rather not buy a national or GW instruments board - they do more than i need, with an emphasis on conversion, and are slow. somebody please help me out - i don't want to buy another IBM!^%$#^# john bloomer
ephraim@think.COM (Ephraim Vishniac) (03/22/89)
In article <13389@steinmetz.ge.com> jbloomer@mozart.steinmetz.Ge.Com (john bloomer) writes: >we've all seen lots of PC AT/XT bus support for prototyping h/w >even with decoder logic etc on-board. does the same exist for the >Nubus - or does the complexity of the slot manager etc. make it the >real challenge? what i really want is a Nubus form factor board, >at least an application note to help getting on and off the bus, and >a start at some LightSpeed C support code. if it comes w/ decoder >logic etc., all the better. my application requires reading and >writing 1MHz 16-bit parallel words, watching a timer (VIA) and logging >results. i would rather not buy a national or GW instruments board - they >do more than i need, with an emphasis on conversion, and are slow. This comes up often enough that I'll post in addition to e-mailing my reply. Yes, several companies make such boards. The one that I can point you to off the top of my head is Creative Solutions, Inc. They've been at this as long as anybody: they were offering boards at the first Boston MacWorld after the Mac II intro. Their memorable phone number is 1-800-FORTH-OK. Besides boards with a minimal NuBus interface, they also sell a variety of complete boards with stuff like serial ports and parallel ports on them. Ephraim Vishniac / Internet: ephraim@think.com / AppleLink: ThinkingCorp Thinking Machines Corporation / 245 First Street / Cambridge, MA 02142-1214 "Arlo Guthrie, it seems, has found what he was looking for: God, and the Macintosh." (Boston Globe)