michael@nvuxd.UUCP (M.CAIN) (02/26/85)
I recently acquired the new Coco Max (terrible name!) system for my Color Computer. Impressive! It's a MacPaint clone, and has brought very large portions of that environment to a very small machine. It's best feature, from my viewpoint, is that they added a special cartridge with 8-bit A/D, so the mouse/joystick can address the entire high resolution screen without "moving windows" or other artifacts. Total price, including a Y-cable to hook both A/D and disk controller, was a hair over $100. That's quite a bit more than Graphicom and some of the other packages, but I think you get more. Now for the question. With the A/D and the disk controller both plugged into the ROM slot using a Y-cable, OS-9 refuses to boot up properly. I get to the "OS-9 BOOT" screen, then everything locks up with drive 0 spinning but nothing happening. With the A/D unplugged, no problems. Is there anyone out there who can shed some light on this problem? I would certainly like to access the 8-bit A/D from OS-9. The documentation says that the unit is located at 0xff90, and that it can be placed in any slot on the RS Multi-Pak. Would using a Multi-Pak in place of the Y-cable help? Thanks in advance, Michael Cain Bell Communications Research
kim@mcrware.UUCP (Kim Kempf) (02/28/85)
> Now for the question. With the A/D and the disk controller > both plugged into the ROM slot using a Y-cable, OS-9 refuses > to boot up properly. I get to the "OS-9 BOOT" screen, then > everything locks up with drive 0 spinning but nothing happening. > With the A/D unplugged, no problems. > Would using a Multi-Pak in place of the Y-cable help? > > Michael Cain > Bell Communications Research It seems the Y-cable is causing the problem. Using the A/D and the disk controller in the Multi-Pak cause no boot problems here. I haven't tried accessing the A/D with OS-9, although I forsee no problems. BTW, the Coco Max operation *IS* impressive...