Was just thinking that also. :) On Wed, Jul 1, 2020 at 7:51 AM Kurt McCullum <ku...@fastmail.com> wrote:
> Interesting. > If you have the cables, you can put a PC in between the TPDD2 and the > Starlet and use that serial sniffer utility I sent you to see what's going > on. That's how I figured out the TPDD2 sector access protocol. > > Kurt > > On Wed, Jul 1, 2020, at 7:44 AM, Gary Weber wrote: > > STARDISK.COM is a TPPD2 file import/export utility for CP/M running on > the NEC PC-8401A(Starlet) or PC-8500. I've verified proper functionality > with real TPDD2 hardware so I have to conclude that yes the format of the > request is correct. > > On Wed, Jul 1, 2020 at 6:23 AM Kurt McCullum <ku...@fastmail.com> wrote: > > > Almost seems like an FDC request. I've never encountered it. > There is a response code 4X (pg42 of manual) where X can be 0-F which > would include 48. But you are looking for a request not a response. > > What does STARDISK.COM do? > > Is the rest of the TPDD request formatted correctly? > > Kurt > > On Tue, Jun 30, 2020, at 10:25 PM, John R. Hogerhuis wrote: > > Seen in the wild.. TPDD request code 48 by Gary Weber with STARDISK.COM > > Anyone happen to know what it is? > > -- John. > > > >
