On Phillippe's second point, the DSKY already exists for the N8 ECB platform so maybe you can reuse that?
I forget -- would the proposed board have a parallel port or two? That'd be great for a parallel ascii keyboard. Sent from my iPhone > On Sep 11, 2015, at 1:51 AM, Philippe Elie <[email protected]> wrote: > > Hi all, > > I'm jumping in this thread a bit late, it's a great idea John! I was > considering building a Zeta SBC but was missing the S100 compatibility. The > board you suggest could be used not only for diagnostic but also to build a > compact S100 system based on a 4-slot backplane for example. > > a couple of comments : > - also agree that serial is essential, video not that much. Propeller is > great but, having spent quite some time tweaking the code, there are inherent > limitations when running DOS as several programs are addressing the video > memory directly and this makes it quite difficult to emulate. as such, we > should rather leave the video chip decision to the user and integrate the > serial port only. > - I own several old school SBCs, as I guess several people here, KIM1, SYM1, > TM990 etc and one feature they all have which is neat is a tiny hex keyboard > and LED digits. I was wondering if this very limited entry/display device > would also be included in the board, probably via a dedicated connector and > external daughter board.. that would make debugging, patching, etc quite > straightforward, and helping in situations where an external serial terminal > cannot be used > > my 0.002 cents ! > Philippe > -- > 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.
