I agree that prototypes should be done first. Who can test them? Ed
On Saturday, April 26, 2014 11:56:07 AM UTC-5, monahanz wrote: > > I think we need to do a prototype run on that board first. While it > contains elements of 3 previous boards we did, it is the first time they > are all put together in one place. Also as a few of us know, we had real > problems with that BT478 chip on the VDP board (which itself BTW needs to > have another prototype run). > > > > On the 7220 I will help out with the hardware, the thing to remember about > the 7220 is you have to do quite a bit of software writing to get it to be > of any use. Is somebody prepared to do that. Because without software > that chip/board is useless. > > > > John > > > > > > *From:* [email protected] <javascript:> [mailto: > [email protected] <javascript:>] *On Behalf Of *David Fry > *Sent:* Saturday, April 26, 2014 7:40 AM > *To:* [email protected] <javascript:> > *Subject:* Re: [N8VEM-S100:3295] S-100 boards in work > > > > Hi Ed, > > > > Andrew has uploaded the EDA files for the uPD7220 GDC this afternoon, if > you feel inclined to do a production run then put me down for 1 board > > just for curiosity value. It might be worth considering a smaller run of 5 > to 10 boards as this board has failed to spark sufficient interest for a > production run > > before. looking a previous forum posts for the uPD7220 GDC it would appear > to be a descendant of the ECB uPD7220 graphics board interfaced to the S100 > bus and is ripe for testing. > > > > > https://groups.google.com/forum/#!searchin/n8vem-s100/upd7220/n8vem-s100/KNTuzzAdKbU/XIY-yZTK4dUJ > > > > Regards > > > > David Fry > > > On Friday, April 25, 2014 11:19:04 PM UTC+1, Edward Snider wrote: > > It does seem like it would be an interesting board for an S100 system. > > With almost all of the work done it would be a shame not to go through to > completion. > > > > Unfortunately I don't have enough of a system together to help in testing, > but I can chip in a bit > > for prototypes. I'd also be willing to handle the production run if we > can get takers for at least > > 20 boards, if that would be helpful. > > > > Ed > > > > > On Tuesday, September 24, 2013 1:45:38 AM UTC-5, nekonoko wrote: > > Hi Andrew, > > I can definitely see chipping in at least some of the cost. I find the > uPD7220 GDC interesting as several business class CP/M systems used it for > graphics (DEC Rainbow, QX-10 etc.). > > Thanks much, > > Pete > > -- > 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] <javascript:>. > 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.
