Eric, I Have been thinking of deposit, deposit next etc. but with dip switches. Anybody seen a non CPU/simple hex keypad input circuit. I would rather not make this board a computer within a computer.
John From: [email protected] [mailto:[email protected]] On Behalf Of Eric Osman Sent: Thursday, February 19, 2015 4:32 PM To: [email protected] Subject: RE: [N8VEM-S100:6363] A V3 version of our S100 bus System Monitor Board Hi John - This may be way outside the scope of what you have in mind, but I'd like to see the ability to add a keypad for doing deposit, deposit next, examine, that kind of thing. Similar to what was once on the Intel MCS 85 SDK and similar systems. http://oldcomputers.net/intel-mcs-85.html This would truly replace all the functionality of a front panel, and then some. - Eric -----Original Message----- From: [email protected] [mailto:[email protected]]On Behalf Of monahanz Sent: Thursday, February 19, 2015 11:28 AM To: [email protected] Subject: [N8VEM-S100:6355] A V3 version of our S100 bus System Monitor Board The V1 and V2 versions of our tried and true System Monitor Board have stood the test of time. It's described here:- http://s100computers.com/My%20System%20Pages/SMB%20Board/S100%20Bus%20SMB.htm and while it’s only a year ago since we did a V2 version, I’m toying around with doing a V3 version. As an aside my current aim is to have a core S100 computer system of 4 solid boards:- A V3 SMB A 16MB Static RAM board http://s100computers.com/My%20System%20Pages/16M%20RAM%20Board/16MG%20RAM%20Board A V3 IDE/CF Card board http://s100computers.com/My%20System%20Pages/IDE%20Board/My%20IDE%20Card.htm and a 80486 Master/Slave board http://s100computers.com/My%20System%20Pages/80486%20Board/80486%20CPU%20Board.htm (Of course there are and will be other S100 boards in the future -- I working on a Raspberry Pi S100 board), Anyway I want to get the above core board’s rock solid -- ideally to run reliably at 9-10MHz. I think our Z80 and Propeller/Console IO boards are up to it and the VGA board “should” be OK with the 80486. Last week we went through the exercise of tweaking the V3 IDE board, thanks, it’s gone for prototyping. I would like to consider tweaking the V2 SMB, and I’m open to a wish list. So far I have:- Run wide power line traces, particularly to the HEX displays. Label the silkscreen and jumpers better/extensively. Redo the whole TMA 1-4 line switching circuit to be less sensitive to CPU speeds (for Gary & co.) Add a row of 0.1” jumpers near the top of the board so essential S100 bus signals can be easily tapped into with the Saleae Logic or USBee logic probes. Use a few GAL’s to simplify the circuits and get more board space. Suggestions please. John -- 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.
