A V2 version of the S100 bus MSDOS Support board. |
Author: monahan9999 Date: 26 Feb 2014 7:12 pm |
The board has proven to be very popular and reliable. Over 20 boards were already made and distributed to users. I decided to add a few small changes to the board to improve its functionality. We are calling this board the "V2-MSDOS Support Board". The changes include:-
1. Add a HolTek HT6542 PC keyboard controller chip to allow a MSDOS keyboard and mouse connection
2. Replace the RTC with a chip that utilizes a separate battery for future replacements/availability
3. Optimize the board layout and traces so the overall lengths are shorter and more reliable
4. Remove the S100 bus extra wait state circuit
5. Label the board jumper options on the board better.
A brief description of the V2 board can be found here:-
http://s100computers.com/My%20System...20Board.htm#V2 MS_DOS Support
(Bottom of the page).
There is now a ground swell of people wanting to get an early version of this board. Please look at the N8VEM Google Groups for more info
https://groups.google.com/forum/?fro...rum/n8vem-s100
John
A V2 version of the S100 bus MSDOS Support board. | ||
1 | 26 Feb 2014 7:12 pm | monahan9999 |
2 | 26 Feb 2014 11:04 pm | Steve Nickolas |
3 | 27 Feb 2014 1:10 am | monahan9999 |