Marvellous. Will make a great Christmas present for me :-)
I'm still at it on the CP/M software front, currently overcoming TPDD's
64KB file size...
Philip
On 23/11/2017 10:00 AM, Stephen Adolph wrote:
Just a short note to say I have finished verification of my REXCPM
board. It provides up to 2MB of battery backed up SRAM in the OPTROM
socket, and it is good for providing the needed full 64KB of SRAM for
CP/M operation, plus provides ample space for RAM based disks.
It needs only 2 wires - one connected to the /WR signal, and one
connected nicad juice.
In M100, you get /WR and RAMRST (which supplies nicad juice) on the
system bus connector.
In T102, you solder wires to the adjacent RAM chip to get /WR and Vb.
..Steve
