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RE: [N8VEM-S100:5384] An S100 Bus to IBM-PC ISA Bus converter board.



Just got in under the fence Robert! You are on the list.

John

 

 

From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On Behalf Of Robert
Sent: Monday, October 13, 2014 6:32 PM
To: n8vem...@googlegroups.com
Subject: RE: [N8VEM-S100:5384] An S100 Bus to IBM-PC ISA Bus converter board.

 

Hi John,

If you have any boards left over, I'd like one (just got my first chance to get to my email and it looks like the order was already placed).

Thank you,

Robert Greenstreet

-----Original Message-----
From: John Monahan
Sent: Oct 10, 2014 6:51 PM
To: n8vem...@googlegroups.com
Subject: RE: [N8VEM-S100:5365] An S100 Bus to IBM-PC ISA Bus converter board.


Ok guys, I guess there are more die-hard S100 users out there than I realized!    Was actually expecting no response.  Seeing the interest I will go ahead and order the board from PCBCart with actual gold fingers etc. i.e. a production board.    For the same reason,  I have just added the ability of the ISA bus to trigger S100 bus interrupts. Realize for serial ISA boards  that might be useful.  I’m going to Europe Sunday, so I will try and get both these orders (PCBCart) out by tomorrow night.   Thanks for the offer Todd, I’ll just do it here.

 

John

 

 

 

From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On Behalf Of monahanz
Sent: Friday, October 10, 2014 1:40 PM
To: n8vem...@googlegroups.com
Subject: [N8VEM-S100:5357] An S100 Bus to IBM-PC ISA Bus converter board.

 

This is another S100 board that has a very long history. Andrew and I did some 6 prototypes over the years!

 

This is a board that can be used to utilize IBM PC/AT ISA bus  boards in the S100 bus.  I have used it principally to construct and debug various ISA VGA video boards.   However it can be used for other boards as well such as serial, parallel I/O boards etc.  It will not work with ISA boards that require DMA or Interrupt requests.  It's primary use is to checkout MSDOS software with PC hardware.

 

Please note this is a highly experimental board and definitely not of general interest.  I contains some 6 GALS (22V10's)  that allow a large amount of inter-bus signal arrangements.  Please see here for a brief summary/description of the board:-

 

 

Anyway I'm about to send off an order (to Advance Circuits), for one or two boards for my future use, these will be boards without gold plated S100 bus connections -- since the board will only be used occasionally. 

I’m surprised with the response for the MSX – VDP video board (I thought only a few would want one) so just in case some S100 bus die-hards would like a copy of this board please let me know ASAP.  This is definitely going to be a one-time order.  Attached is a picture of the board in KiCAD.

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