Hi Todd, The consensus is to go with http://www.4pcb.com/33-each-pcbs/ Numbers wise we will need 7 PCB's 2 x John (Monahan) 2 x Dave (Yoda) 2 x Fabio 1 x Me (David Fry) I have already uploaded the KiCad files to the Wiki under the S100 section, the link is below, http://n8vem-sbc.pbworks.com/w/file/79620803/S100%20uPD7220_Proto_01.zip double check the pcb board identifier (lower right corner) to satisfy yourself you have the correct file. Note, the file set was saved under a recent release of KiCad, if you have any problems let me know. Once you have a price for the order then let us each know what we owe you, I guess once you have the boards you can let us know what shipping will be from you to each of us. Many thanks for you help David Fry
On Saturday, April 26, 2014 5:56:07 PM UTC+1, 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.
