John, Please put me down for 1 board.
Thanks! Ian > On Mar 19, 2015, at 10:26 AM, monahanz <[email protected]> wrote: > > > > > > Now that the S100 bus XVGA video board > (http://s100computers.com/My%20System%20Pages/VGA%20Board/VGA%20Board.htm > <http://s100computers.com/My%20System%20Pages/VGA%20Board/VGA%20Board.htm>) > has gone out to everybody, I would like to announce our next board… > > > > It’s a V3 version of our tried and true SMB (System monitor Board). The > original board is described here:- > > > > http://s100computers.com/My%20System%20Pages/SMB%20Board/S100%20Bus%20SMB.htm > <http://s100computers.com/My%20System%20Pages/SMB%20Board/S100%20Bus%20SMB.htm> > > > The following changes/updates have been made to the board:- > > > > The was a minor error on the above V2 board (pin 5 of U32), this is now > corrected. > There was a report of the TMA 0-3 switch circuit was not working reliably > with the 80386 board at high speed, this circuit has now been completely > replaced/simplified with a single GAL. > An Intersil ICM7216D chip has been added along with 3 new Digital displays to > continuously display the frequency of the bus master clock speed (PHI) in MHz. > A circuit and LED bar was added to continuously display the bit pattern of a > user defined output port. (default, LED Diagnostic Port 05H). > A circuit was added to trigger an interrupt if the S100 bus ERROR* signal > (pin 98) is activated. > A series of jumpers was added to easily attach a logic probe cable (such as a > USBee or Saleae unit) for hardware debugging. > The LM323K 5Volt, 3Amp regulator can be replaced (in the same > footprint/space) with a Pololu 5 Volt , 2.5 Amp D24V25 Switching regulator. > Almost all chips from the V2 board can be re-used on the V3 board. Only the > ICM7216D, 3 Digital displays and GAL 22V10 are new. > > > > Please see the bottom of the above page for more information. > > > > I will be sending off an order for final bare boards in the next few days. > If you would like one or more boards please let me know (preferably by > e-mail). The usual arrangements ~$15/board + postage WHEN you get the board > via PayPal. > > > > 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] > <mailto:[email protected]>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. > --- > > Filter service subscribers can train this email as spam or not-spam here > <http://my.email-as.net/spamham/cgi-bin/learn.pl?messageid=0C8A9724CE5D11E4A820247293ED0201> -- 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.
