The Tatung Einstein
Tatung Einstein SD Card
Charlie Robson has developed an SD card interface board that
is designed to work with a range of Z80 based computers,
including the Einstein TC02. You can read about its development
on Charlie's blog.
Charlie has called the Einstein version EinSDein
- a clever combination of Einstein and SD.
heart of the system is a small PCB which holds a CPLD
and the SD card slot.
(Photos from Charlie's
board is connected to the Einstein "Pipe" interface
connector - a 60 pin IDC socket on the rear of the
SD-X requires needs a small
adapter board to convert the SD-X connector to an IDC
plug for connection to the "Pipe" IDC socket.
|As you can
see, the adapter board and pair of IDC cables dwarf the
The EinSDein upgrade kit includes a ROM to be installed in
the expansion ROM slot on the TC01 computer board. To allow
EinSDein to co-exist with 1 or 2 floppy drives, the ROM enables
two virtual drives, "2:" and "3:" and allows the system to be
booted from the SD card.
The firmware presents the virtual drives are normal Tatung
removable disks, but also allows the system to load disk images
from the SD card.
To be continued . . . .