So, no idea if this is a proper post or not. In short, I built up a few board sets back in 2013: One with the CPU, ROM/RAM, I/O decode, etc. and a second board with some I/O... they attach via a 30-pin ribbon cable.
I used one (pictured) for initial development and two for longer term testing as I developed code which resulted in my initial BIOS and C02Monitor code. Every chip is socketed and all parts are high quality. Since I designed a new single board using a NXP UART, these earlier board sets have been laying dormant for over a year.
It seems a waste to have them sitting, so I'm thinking of putting two of them up for sale (at a good discount). No idea if this is proper for the forum but to be honest, I've no idea where else I would even think about listing them.... if this doesn't fly for the forum, then I would ask one of moderators to delete the post.
In any case, HW config is:
CPU card:
W65C02 CPU running at 4MHz
32KB static RAM
32KB Atmel EEPROM
74HCxx logic chips for I/O decode, Read/Write qualificaions
DS-1813 Reset chip
I/O card:
W65C22S VIA
Rockwell R65C51P4 ACIA
Maxim Max238 level shifter
DB-25 Parallel port and DB-9 RS-232 port
Parallel port compatible with Daryl's SBC2.5 port config
Full BIOS and Monitor code supplied as well as schematics and PCB layouts.
If anyone is interested, PM me.
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65C02-2PCB.jpg [ 110.64 KiB | Viewed 1194 times ]