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- Xref: sparky comp.sys.amiga.hardware:23570 comp.sys.amiga.misc:20355
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!uwm.edu!csd4.csd.uwm.edu!jdblake
- From: jdblake@csd4.csd.uwm.edu (John David Blake)
- Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.misc
- Subject: ROM Switcher Question (advice)
- Date: 23 Jan 1993 05:03:27 GMT
- Organization: Computing Services Division, University of Wisconsin - Milwaukee
- Lines: 16
- Distribution: world
- Message-ID: <1jqjivINN7e7@uwm.edu>
- NNTP-Posting-Host: 129.89.7.4
- Originator: jdblake@csd4.csd.uwm.edu
-
- In some letter, I said:
- >>
- >>Howdy all! I'm trying to find a do-it-yourself 1.3/2.0 ROM switcher for my
- >>A500. I have the RomSwitcher-1.0.lha file, but I've heard that there is a
- >>switcher plan available that will allow a switch at startup using the mouse.
-
- In the response, K.C. Lee said:
- >It's pretty easy to do, just use a D-type flip-flop (eg. 74LS74) to
- >latch in the mouse button during reset. (ie use the reset line as clock
- >and mouse button as D and Q and /Q as the /CS for 1.3 & 2.04 ROM.)
-
- He doesn't have time to elaborate. So, does anyone know what he is talking
- about? Please write me via e-mail at jdblake@csd4.csd.uwm.edu if you have
- any information. Thanks!
-
- jdblake@csd4.csd.uwm.edu
-