[Coco] Primer on building multiple floppy drive systems?

[piperfox74]

Hey folks!

I have two Chinon FZ-502 floppy drives. These should be DSDD 360K drives. They have jumpers for drive select and termination. If I want to use both for a CoCo, what’s the correct DS and Termination settings, and in what order on the drives?

At the moment, I’m a bit befuddled, as the way I have these configured, DECB correctly sees a Drive 0 and a Drive 1, and a DIR and DIR 1 correctly read the drives and disks I suspect they should. However, when I type DOS, what I’d consider Drive 1 tries to read a disk instead of Drive 0. I suspect I’ve just got something misconfigured, but I can’t find any documentation on the right way to build a dual-drive CoCo setup.

Thanks!

Christopher