This one seems to have information on the diskette layout starting on page 230:
https://electrickery.nl/comp/p2000c/doc/P2000C-SystemRefServiceManual.pdf -Peter On Sun, Dec 8, 2024 at 4:52 PM Rik Bos via cctalk <cctalk@classiccmp.org> wrote: > Tony, > > Maybe this software catalogue will help you: > https://electrickery.nl/comp/p2000c/doc/PTC_Katalogus.pdf > > -Rik > > -----Oorspronkelijk bericht----- > Van: Tony Duell via cctalk <cctalk@classiccmp.org> > Verzonden: zondag 8 december 2024 19:55 > Aan: General Discussion: On-Topic and Off-Topic Posts < > cctalk@classiccmp.org> > CC: Tony Duell <ard.p850...@gmail.com> > Onderwerp: [cctalk] Philips P2000C disk format > > The quick version : Does anyone know the exact physical and logical disk > format used by CP/M on the Philips P2000C portable computer? > > The long version with explanations : > > I am having reasonable success transfering files to/from disk images for > my Osborne 1A (using cpmtools) and IBM5155 (MS-DOS, of course using > editdisk). And I've even got the Greaseweazle to transfer those images > to/from real floppies. The Greaseweazle still annoys me in that I know it's > capable of a lot more if only I could work out how to do it, but at least > it does something useful > > [The less said about floppy disks shedding oxide and/or suffering from > 'sticky shed' the better. I'm spending far too much time dismantling and > cleaning drives....] > > Any, I'd like to do the same for another of my machines, a Philips P2000C > cp/m 'portable'. My machine is the version with 2 internal 40 cylinder > single head drives (about 160K each, MFM) but I can also plug in an > external 80 cylinder double head drive to handle this machine's other > native format (about 640K). > > Unfortunately, this machine is not common, and neither cpmtools nor the > greaseweazle software has the formats predefined. I could add them myself > -- if I knew what they were. Things like #sectors/track, sector size, > #system tracks, skew, etc. > > It's not obviously given in any of the manuals I have, so does anyone know > it before I try to work it out. > > Alternatively there are rumours that the P2000C could read/write at least > one more common cp/m disk type. The hardware should be capable of it, sure. > Doe anyone know if software to do something like this exists anywhere for > the P2000C. I can't find it on any of the obvious sites > > -tony > >
