The only change I'm aware of for the V2-Z80 board was the need for a 1K pull-up resistor (U26 pin2) on the back of the board. See here:-
http://s100computers.com/My%20System%20Pages/Z80%20Board/Z80%20CPU%20Board.h tm (near bottom of page). John From: [email protected] [mailto:[email protected]] On Behalf Of Gary Kaufman Sent: Tuesday, March 25, 2014 10:58 AM To: [email protected] Subject: Re: [N8VEM-S100:2921] Re: BASIC in ROM - Any Interest? Neil - Andy mentioned that "the S-100 Z80 V2 CPU board is still pending some updates from Neil for compatibility with the new S-100 Utility board. " As I'm arranging a run of the Z80 V2 CPU card I was wondering if the card is all set, or will need any changes? We're pretty close to being ready to order. Thanks! - Gary On Tue, Mar 25, 2014 at 1:34 PM, nbreeden <[email protected]> wrote: Update for 3/25 - The last two show-stopper bugs have been fixed. Both of these were actually east to fix once I finally understood them. - The resolution to the issues was very interesting to me; it's anyone's curious I can post info on them. - My testing looks good. - I've already documented the changes to the V1 CPU card required. - I believe the V2 card can be jumpered to allow the same configuration. - The Serial I/O card has had the USB, SCC1 and SCC2 interfaces tested, all three work as the console device. - The Utility Card (MSX2) serial port can also be used as the console. I still need to: - Document the jumper config on my 4MB memory card, the Serial I/O card and the Utility card. - Document how I build the ROM images and a description of the hardware interface ASM files. - Recruit a few alpha users - If you're interested let me know. -Neil -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
