I'm willing to organize an order for these boards. Are the final board files done? Can I get them to organize a buy?
I want three in any case. Thanks! Todd * monahanz <[email protected]> [140301 22:36]: > > > Again back over 2 years ago Andrew and I put together an S100 bus “System > Support Board”. This board was designed to allow one to analyze many of > the hardware signals on the bus by “single stepping” the CPU, setting > hardware breakpoints etc. It worked in the busses 16B address space with 8 > and 16 bit CPU’s. > > Like the MSDOS Support board, it has proven to be very popular and > reliable. Many boards were already made and distributed to users. We > decided to add a few small changes to the board to improve its > functionality. We are calling this board the* “*V2 – System Support Board*”*. > > The changes include:- > > *1. Add a circuit to allow any combination of the four TMA0-3 lines to be > activated. This allows up to 15 slave devices on the bus * > > *2. Latch all address lines for better display reliability with high speed > CPU's * > > *3. Optimize the reset circuit * > > *4. Optimize the single step circuit. * > > *5. Add a circuit to ground address lines A16-A23 when (older) non IEEE-696 > CPU boards are the bus master. * > > *6. Switch to a 3A TO-3 voltage regulator *A brief description of the V2 > board can be found here:- > > http://s100computers.com/My%20System%20Pages/SMB%20Board/S100%20Bus%20SMB.htm#V2-SMB > > (Bottom of the page). > > Like the MS-DOS support board, there will probably be some interest is in > people obtaining a “commercial style” bare board like this. It would be > great if we could get a volunteer to organize a group purchase of boards. I > will definitely be getting 3 for myself. If you absolutely need one sooner > rather than later let us know we can include you in the early “first > batch”. Otherwise stay tuned for a later group purchase by (hopefully) a > group member that will organize a larger purchase - at a lower price. > > Please note this is a two board set. Besides the S100 board, there is > another board that contains three mezzanine boards for the Hex/LED bar > displays and switches. If you already have the original (V1) board you > don’t need the mezzanine boards as they will work with this V2 board as > well. If you don’t then you will need the two board combination. > > Also if you already have the original V1 board, all the chips on that board > can be transferred to this new board. > > -- > 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/groups/opt_out. -- 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/groups/opt_out.
