This is very cool! On Wed, Nov 22, 2017 at 1:00 PM, Stephen Adolph <[email protected]> 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 >
