Re: P112 redesigned for Z280?
> On 12/12/18 6:58 AM, David Griffith via cctalk wrote: > > > That's got me thinking... Suppose I redesign the P112 board to take a > > Z280 CPU. Would you guys go for it? I'd like to come up with a way > > to use a socketed CPU or put a surface-mounted chip on a carrier board > > to allow greater versatility with playing with different Zilog chips. I would be interested. I have a few Z280 laying around (the ones that go into a socket).
Re: P112 redesigned for Z280? terminal
This? http://searle.hostei.com/grant/MonitorKeyboard/index.html It's much more efficient for a poster to provide URLs than for umpteen others to have to go off searching. You're welcome. On Wed, Dec 12, 2018 at 2:04 PM allison via cctalk wrote: > >> That is the easy part, where is the 99 cent dumb terminal to go with it? > >> Ben. > > > > Ben, > > look at Grant Searle's display system, not the Z80 CP/M but his three > chip display system. > Take two Atmel Atmega328Ps and a 74ls166 monitor and P2 keyboard required. > That yields a 24line x 80char display that is a subset of Vt100/Ansii. > Its not 99cents but > at list prices under 7$ Monitor and keyboard not included. > > Or you can use an arduino with a 40char by 4 line LCD. > > > Allison >
Re: P112 redesigned for Z280?
On 12/12/18 6:58 AM, David Griffith via cctalk wrote: My reply is at the bottom. Please put your reply there too. On Tue, 4 Dec 2018, ben via cctalk wrote: On 12/4/2018 1:17 PM, Tony Nicholson via cctalk wrote: Hello David I saw your posting on the cctalk mailing list regarding RSX180. It is Hector Peraza that's been tinkering with this. He intends making the full source-code available via SourceForge or GitHub but is still working on preliminary web pages and documenting etc. No doubt he will provide you with more details. I've been tinkering with a Z280 system designed by Bill Shen (the Z280RC on the RetroBrew web site at https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:z280rc ) and have contacted Hector about porting it to the Z280. That is the easy part, where is the 99 cent dumb terminal to go with it? Ben. That's got me thinking... Suppose I redesign the P112 board to take a Z280 CPU. Would you guys go for it? I'd like to come up with a way to use a socketed CPU or put a surface-mounted chip on a carrier board to allow greater versatility with playing with different Zilog chips. David, Count me in on this one... Definitely sounds interesting... -- Mike
Re: P112 redesigned for Z280? terminal
>> That is the easy part, where is the 99 cent dumb terminal to go with it? >> Ben. > Ben, look at Grant Searle's display system, not the Z80 CP/M but his three chip display system. Take two Atmel Atmega328Ps and a 74ls166 monitor and P2 keyboard required. That yields a 24line x 80char display that is a subset of Vt100/Ansii. Its not 99cents but at list prices under 7$ Monitor and keyboard not included. Or you can use an arduino with a 40char by 4 line LCD. Allison
Re: P112 redesigned for Z280?
On 12/12/2018 07:58 AM, David Griffith via cctalk wrote: > > My reply is at the bottom. > Please put your reply there too. > On Tue, 4 Dec 2018, ben via cctalk wrote: >> On 12/4/2018 1:17 PM, Tony Nicholson via cctalk wrote: >>> Hello David >>> >>> I saw your posting on the cctalk mailing list regarding RSX180. >>> >>> It is Hector Peraza that's been tinkering with this. He intends >>> making the >>> full source-code available via SourceForge or GitHub but is still >>> working >>> on preliminary web pages and documenting etc. No doubt he will >>> provide you >>> with more details. >>> >>> I've been tinkering with a Z280 system designed by Bill Shen (the >>> Z280RC on >>> the RetroBrew web site at >>> https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:z280rc >>> ) >>> and have contacted Hector about porting it to the Z280. >> >> That is the easy part, where is the 99 cent dumb terminal to go with it? >> Ben. > > That's got me thinking... Suppose I redesign the P112 board to take a > Z280 CPU. Would you guys go for it? I'd like to come up with a way > to use a socketed CPU or put a surface-mounted chip on a carrier board > to allow greater versatility with playing with different Zilog chips. > I'd be interested in a Z280 system. I have a few of the jlead (socketed format) chips of very late revision I've built around. The design work I used was started by Tim Olmstead. The RSX system would likely run very well as Z280 offers larger memory, I&D space, supervisor/use, and MMU so a real protected space OS is possible. Allison
P112 redesigned for Z280?
My reply is at the bottom. Please put your reply there too. On Tue, 4 Dec 2018, ben via cctalk wrote: On 12/4/2018 1:17 PM, Tony Nicholson via cctalk wrote: Hello David I saw your posting on the cctalk mailing list regarding RSX180. It is Hector Peraza that's been tinkering with this. He intends making the full source-code available via SourceForge or GitHub but is still working on preliminary web pages and documenting etc. No doubt he will provide you with more details. I've been tinkering with a Z280 system designed by Bill Shen (the Z280RC on the RetroBrew web site at https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:z280rc ) and have contacted Hector about porting it to the Z280. That is the easy part, where is the 99 cent dumb terminal to go with it? Ben. That's got me thinking... Suppose I redesign the P112 board to take a Z280 CPU. Would you guys go for it? I'd like to come up with a way to use a socketed CPU or put a surface-mounted chip on a carrier board to allow greater versatility with playing with different Zilog chips. -- David Griffith d...@661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?
