On Sat, 23 Apr 2022, Bill Gunshannon via cctalk wrote:
Your right about all the available options. Somewhere around here I have a couple of P112 SBC's. I wonder what the floppy controller in that can do? I am pretty sure it claimed compatibility with CP/M 8" disks. If so it can probably handle all various 5.25" formats as well. Looks like I may have a number of things to play with while I spend my summer stuck in the house.
Standard CP/M (8" SSSD) was FM at 250K data transfer rate Most designers of such made an effort to keep it versatile. Let's hope that they included MFM and data transfer rates of: 125K (5.25" single density (TRS80 model I and Early Osborne))
250K 500K (8" double density and 3.5"/5.25" 'High' density) maybe even: 300K (5.25" 360K double density in a 360RPM 1.2M drive) 1000K (2.8M)
