16 Dec
2018
16 Dec
'18
2:44 a.m.
/On Sat, Dec 15, 2018 at 5:47 PM Norbert Kehrer via
cctalk />/<cctalk at classiccmp.org
<http://www.classiccmp.org/mailman/listinfo/cctalk>> wrote: />>/With
that, you get a big screen (the PC monitor) and disk space for />>/programs and data
on the PC's hard disk, which can then also be used for />>/data and program
exchange. /
On Sun, 16 Dec 2018, Jason T via cctalk wrote:
/This is great - thank you for writing it! I have at
least one HX-20. />/IIRC it was used for Motorola radio programming and had custom
ROMS. />/Do you know what other Epson portables (if any) used the same protocol? /
On Sun, 16 Dec 2018, Fred Cisin via cctalk wrote:
The Epson HC-20 probably did.
It was essentially the same machine, in silver-grey, instead of beige,
with both English and katakana keyboard and character generator ROMs.
I have not tested it, but I suppose, that also the PX-8 and PX-4 used the protocol,
because the protocol specification defines the following device numbers:
- HX-20: 0x20 (probably also used for the HC-20)
- PX-8: 0x22
- PX-4: 0x23