Path: utzoo!attcan!uunet!snorkelwacker!tut.cis.ohio-state.edu!pt.cs.cmu.edu!andrew.cmu.edu!rh2y+ From: rh2y+@andrew.cmu.edu (Russell E. Hoffman, II) Newsgroups: comp.os.os9 Subject: Re: Building a Multipak for OS9 on the CC3 Color Computer 3 Message-ID: Date: 20 Feb 90 14:24:47 GMT Organization: Carnegie Mellon, Pittsburgh, PA Lines: 19 There is yet a third alternative that does work and is easy to do. Just use a simple Y-cable with no buffering. The trick is that you replace to 6809 about once a year, but at 2 or 3 bucks a pop, its not too bad, depending on how you look at the situation. The deal with the rs232 pack is you remove the ROM, which you don't need if you're using OS9, anyway. The problem isn't port addressing, its that the VIDEOTEX ROM in the cartridge is at the same address as Disk ECB. If you remove the rom from the cartridge and use the OS9 driver, you'll be pretty happy. And, while I don't really recommend the Y-cable idea I mentioned above, it will work rather nicely if you only have two cartidges maximum on the cable (I.E. a disk controller and an rs-232 pak) I run my PBJ Word-pak this way, and I've only had to replace the 6809 once, and I'm not even sure the Y-cable was the cause of the failure. Russ Hoffman Carnegie Mellon University rh2y+@andrew.cmu.edu ----------------------------- "" [ --]