Hi
Here is a quick update on upcoming
S100computers.com and N8VEM S-100 board
projects:
1. S-100 6502 CPU V2 (includes minor fixes from V1 plus new TMAx
multiple CPU logic) - taking orders for "production" boards. Please contact
me if you would like to advance order to reserve one or more PCBs.
2. S-100 ParallelIO - this is a new board sort of a modernized version
of the MITS Altair PIO board. Includes LED debugging lights. It is meant
to be an easy to construct and test board for new builders while still being
useful to all. Includes 4 each byte wide input and output ports plus a PC
compatible printer port. Currently in prototype build and test.
3. S-100 TestIO V2 - An experimental S-100 to ISA bridge. The purpose
of this board is to diagnose why the VGA chipset works on the ISA bus but
not on the S-100 bus. May evolve into a general purpose bridge board
sometime in the future but is just for internal build and test at the
moment.
4. S-100 EPROM/RAM V2 board - a redesign of the original S-100
EPROM/RAM board with improved logic and options. Very useful general
purpose memory supports common DIP Flash, EPROM, SRAM, etc. Prototypes
ordered for build and test.
5. S-100 VDP V3 - update to the ongoing development of the V9938 and
AY-3-8910 video and sound board. Feedback from Leon and John have fixed the
major problems and it is reliably generating composite video, sort of VGA
video, and sound. Prototypes ordered for build and test.
6. S-100 80286 CPU - finishing up in PCB trace routing after several
revisions. Probably will go to prototype build and test before a production
board available due to the rather significant updates. Would like to get
this out this summer.
7. S-100 80386 CPU - finishing up in PCB trace routing. Really could
go to production at any time but will probably follow the S-100 80286 CPU
board.
8. S-100 80386 SRAM V2 (8MB) - matched for S-100 80386 CPU has
completed PCB trace routing and is ready to go for production.
There are more boards in earlier stages of development that have not reached
the prototype stage yet. We'll save discussion of those for later.
Thanks and have a nice day!
Andrew Lynch