TINYMS.MAK for v0.113, v0.115 of Win32 MESS.
A prototype flash cartridge for the Coco family of computers.
STATUS: PCBs for 6 prototypes have arrived.
ROM-option board - Design fully tested and working.
Revision 0.5 Schematic Diagram (PDF) and PCB (PDF)
Added 16/32KB jumper
Swapped Bank0/4 pull-ups so R2 not required for ROM option
UPDATE: moved LED to outer edge of PCB so it can actually be seen
NOT inclusive of postage
Coco-Flash bare PCB only
Coco-Flash ROM option, assembled, includes 2-way DIPSWITCH and jumpers, EPROM socket.
EPROM NOT included!
Coco-Flash 4Mb (512KB) Flash option, assembled, includes 8-way DIPSWITCH and jumpers. $28
Number of PCBs/boards remaining = 0
A flash-based multi-cartridge for the Coco family of computers.
STATUS: Will be doing another run of updated PCB with fixes soon!
The good news: can read/write CPLD registers, put into stealth mode.
The bad news: (1) Reset button footprint is wrong. (2) LDO VR footprint is wrong.
Revision 0.2 Schematic Diagram (PDF)
and PCB (PDF) and CPLD source (ZIP)
Revision 1.1 Schematic Diagram (PDF) and PCB (PDF) and CPLD source (ZIP)
Fixed LDO and reset button footprints
D0-7 now all BIDIR so registers will be 8-bit R/W
T.B.D. proper mounting holes???