Andrew Bingham
2014-01-13 03:54:37 UTC
Hello,
I'm starting the process of building up an ECB system. I'm planning to use
my Zeta with the Zeta-2-ECB board to start with, and then one of John's
Mark IV Z180 boards when they are debugged, and maybe branch out into the
SBC-188 as well.
I picked up on of the 505-6508 PLC chassis to build in, and I was looking
at making a nice front panel using the Bus Monitor PCB. However I realized
that the SBC-188, mini-68000, and 4MEM boards use (at least) 4 additional
address lines to address up to a full 1 Mb.... From reading the wiki and
the history of the N8VEM project it seems like the Bus Monitor was one of
the first PCBs completed, before the decision was made to extend addressing
to these extra lines.
Are there any thoughts on updating the Bus Monitor to support 20-bit (or
even 24-bit, if the pins are there) addresses for use with the currently
available boards? From a circuit perspective I can see that it would be
simple to do...
Andrew
I'm starting the process of building up an ECB system. I'm planning to use
my Zeta with the Zeta-2-ECB board to start with, and then one of John's
Mark IV Z180 boards when they are debugged, and maybe branch out into the
SBC-188 as well.
I picked up on of the 505-6508 PLC chassis to build in, and I was looking
at making a nice front panel using the Bus Monitor PCB. However I realized
that the SBC-188, mini-68000, and 4MEM boards use (at least) 4 additional
address lines to address up to a full 1 Mb.... From reading the wiki and
the history of the N8VEM project it seems like the Bus Monitor was one of
the first PCBs completed, before the decision was made to extend addressing
to these extra lines.
Are there any thoughts on updating the Bus Monitor to support 20-bit (or
even 24-bit, if the pins are there) addresses for use with the currently
available boards? From a circuit perspective I can see that it would be
simple to do...
Andrew
--
You received this message because you are subscribed to the Google Groups "N8VEM" group.
To unsubscribe from this group and stop receiving emails from it, send an email to n8vem+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/***@public.gmane.org
To post to this group, send email to n8vem-/JYPxA39Uh5TLH3MbocFF+G/***@public.gmane.org
Visit this group at http://groups.google.com/group/n8vem.
For more options, visit https://groups.google.com/groups/opt_out.
You received this message because you are subscribed to the Google Groups "N8VEM" group.
To unsubscribe from this group and stop receiving emails from it, send an email to n8vem+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/***@public.gmane.org
To post to this group, send email to n8vem-/JYPxA39Uh5TLH3MbocFF+G/***@public.gmane.org
Visit this group at http://groups.google.com/group/n8vem.
For more options, visit https://groups.google.com/groups/opt_out.