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Re: [N8VEM-S100:1919] Re: S-100 boards in work

Hi John,
I know that things are really busy at the moment but was just wondering what the status of the S100 upd7220 video board is ?
I don't see it listed on your site anymore.
David Fry
On Tuesday, September 24, 2013 10:54:43 PM UTC+1, monahanz wrote:

No this board is done. Andrew will post details soon.

John Monahan (mon...@vitasoft.org)

On Sep 22, 2013 4:00 PM, <dgf...@googlemail.com> wrote:
Hi Andrew
You haven't made any mention of the ver 3 S100 RAM/EPROM board, I understand from previous posts that this board has undergone last minute changes to add NVRAM battery backup, will this necessitate a further prototype for validation of the changes or will it be going straight to production soon.
Regards and thanks for all the hard work you guys are doing
dave fry (uk)

On Sunday, September 22, 2013 3:47:14 PM UTC+1, lynchaj wrote:


We have a few boards in work and I’d like to update some status on them


S-100 8080 CPU or FP board:  where are we on this?  We had a prototype schematic at one point and were going to make some updates.  Any progress?  What’s the plan?

S-100 Utility board:  SRAM/ROM/UART/PPI/RTC board. Basically the guts of an MSX2 computer sans CPU, VDP, and sound generator.  Prototype board almost done and will be getting prototype PCBs soon.  Need to assemble initial build and test team.  Probably going to be a real bear to debug the initial version.


S-100 uPD7220:  Ready to go to prototype but there doesn’t seem to be much interest in this board.


S-100 SMB V2:  John and I will be working this probably in the Fall


S-100 DMA: same as above


Probably there are more.  Please feel free to ask about various board projects.


Thanks and have a nice day!

Andrew Lynch



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