On 2018-Nov-20, at 5:11 AM, Al Kossow via cctalk wrote: > On 11/19/18 11:54 PM, Brent Hilpert wrote: > >> I didn't have need / get as far as doing an I/O map or memory map for the >> Z80. >> >> Should I send these files along? >> > > Yes, please to dumps/docs and board/terminal pics from you and Mike! > > I'm sure Richard would appreciate these as well for the terminals wiki. > > They have a preliminary memory and I/O map in the MAME driver > > Falco keyboards are pretty funky. They use transformer-coupled switches > with a core that slides between coils on the top and bottom of the PCB > > They appear to use a serial bitstream for the keypresses. EPROM dumps > from the later keyboards with an 8035 would be very useful too, since > CHM has a later model 52xx terminal with a 5 pin DIN, but I've been > unable to find the keyboard. > > I'm guessing the TS-1 series all used the same PCB with different keyboards > and firmware. > > The Fame series use 267x CRT controllers. The 52xx have a custom video ASIC > I've not seen the insides of any of the Fame series.
(The TS-1 data files have been sent to Al.) I did happen to RE the keyboard and analyse it's functioning some as it needed repair, so that's included in the schematic bits. The PCB-transformer key design is novel, but (in the TS-1) so is the scanning & communication. There is no microcontroller on the keyboard, scanning is performed by the main unit, it sends a key matrix address to the keyboard in serial, the keyboard sends back nothing but a binary key-pressed indication.
