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 <http://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 <http://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 >>> <http://stardisk.com/> >>> >>> Anyone happen to know what it is? >>> >>> -- John. >>
