21 Nov
2010
21 Nov
'10
9:16 p.m.
On 11/21/10 3:38 PM, ben wrote:
You're burning PROMs but the rest of the computer isn't designed yet??
The ALU and Front panel have the schematics and the PCB's done on the
computer.The Memory and I/O card have yet to be finalized. I bought a
new computer and had to wait for a *REAL* keyboard I ordered on line
so I can *hunt and peck* on this thing.
Ahh, gotcha. Good luck with your design.
I worked on a commercial (well, "commercial academic", a NASA-funded
project at a university) design that used an Am2910 microsequencer, and
that got me interested in 2900s. Well, that and seeing rows of them on
the FP11-A in my PDP-11/34, and several third-party disk and tape
controllers. ;) I've always wanted to do an Am2900-based design, and I
will if I can ever get some free time.
I do have an Am2901 eval board which is pretty neat.
-Dave
--
Dave McGuire
Port Charlotte, FL
I'd be
interested in hearing from anybody on their 2900 projects.
Slow! I got the Proms burned ( with a minor bug ), but the rest of the
hardware needs to be fleshed out on paper. I will get back to the
hardware after the new year when I have cash to order the IC's. The
pcbs late spring. I have no rush since I have to write some software
for the machine on the PC so I have a assembler running and maybe a
small compiled language so I can write a simple OS. This is 12/24 bit
CPU with 64Kb of address space that falls in the SMALL computer
category.