Hey all, I'm writing a blog post about this IBM 6360 disk controller I want to build: https://www.andersknelson.com/blog/?p=601 I've read through the service manuals and other docs on Bitsavers but I can't seem to find a deeper explanation on the protocol that runs over the DB-37 cable. I suppose I could bypass the controller inside the drive cabinet and directly control the drives but I bet it'll be easier/better to use as much of the electronics as possible. Can anyone help with the protocol? Thanks! -- Anders Nelson +1 (517) 775-6129 www.erogear.com

On 3/31/19 12:42 PM, Anders Nelson via cctalk wrote: the Have you looked at the displaywriter MAME driver? The floppy uses an NEC 765 disk controller

I haven't found any more info on the signaling that goes over the DB37 data cable, and I would like to use my portable logic analyzer to sniff out some basics:

Cool, do you happen to have schematics for the keyboard or a description of the signaling? I could help make a hardware convertor that takes in a USB keyboard and spit out DW keystrokes... A POST logic trace would be helpful I'm sure - where are you located? We can take this off-list if you prefer. =] -- Anders Nelson +1 (517) 775-6129 www.erogear.com On Sun, Apr 21, 2019 at 12:24 PM Al Kossow via cctalk < cctalk at classiccmp.org> wrote: > > > On 4/20/19 3:47 PM, Anders Nelson via cctalk wrote: > > I haven't found any more info on the signaling that goes > > over the DB37 data cable, and I would like to use my portable logic > > analyzer to sniff out some basics: > > I could help you, I have several DWs and I want to document the hardware, > but thanks to kb vultures I've not been able to find a complete keyboard. > I have the PCB and cable but none of the mechanical parts. > > I guess I could try hooking that up to try to get past POST. > >