Article View: comp.sys.amiga.tech
Article #11341Lucas Board
From: Anon
Date: Sat, 04 Feb 1989 09:53
Date: Sat, 04 Feb 1989 09:53
17 lines
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1192 bytes
It seems I was a bit premature when I posted to comp.sys.amiga that I had the lucas board working correctly with my starboard. Now, however, I have been going for 3 hours without a crash, so here's my fix. Build the terminator, but use 3.3 k pull-downs instead of 1k's for /as, /lds, and /uds. These signals looked a little low on the scope. Build a little piggy back board to split u9 into two chips, one for each gate. This is easy to do using 3 sockets. One is connected to pins 1-6 and the other to 8-13, and both are connected to 7 and 14. For me I got the thing to work using an S part for U8, and ALS part for the first gate in U9, and a 7474 for the second half. This works like a charm. I hope this helps. -Vince Lee
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bionet!agate!web-2a.berkeley.edu!c60a-1fyReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bionet!agate!web-2a.berkeley.edu!c60a-1fy From: c60a-1fy@web-2a.berkeley.edu (Anon) Newsgroups: comp.sys.amiga.tech Subject: Lucas Board Keywords: LUCAS CLtd Message-ID: <19943@agate.BERKELEY.EDU> Date: 4 Feb 89 09:53:15 GMT References: <650@csd4.milw.wisc.edu> <166@ziggy.UUCP> Sender: usenet@agate.BERKELEY.EDU Distribution: comp.sys.amiga.tech Lines: 17