Re: Weird Lear-Siegler ADM-3A board

On Tue, May 29, 2018 at 1:10 AM, Eric Smith wrote: > On Fri, May 25, 2018 at 3:30 PM, Adrian Graham via cctalk < > cctalk@classiccmp.org> wrote: > >> Wow, good spot! This one isn’t badged but we just assumed it had fallen >> off. Just as I’m typing this he’s messaged me to say it’s actually the

Re: Weird Lear-Siegler ADM-3A board

On Wed, Jun 6, 2018 at 12:42 PM, Kyle Owen via cctalk wrote: > I have this development board with an NS405 on it. Checked through my docs > and don't seem to have anything for it. Would dumping the EPROM be of > interest? > >From the hand-written label on the EPROM, I suspect that it's not the

Re: Weird Lear-Siegler ADM-3A board

On Wed, Jun 6, 2018, 12:52 Eric Smith via cctalk wrote: > Sure, if you've got them handy, I'll try compiling them with FPC. Are you > willing to release them as open source? > > Do you have any actual NS405/NS455 code that would be of interest? > I have this development board with an NS405 on

Re: Weird Lear-Siegler ADM-3A board

On Tue, Jun 5, 2018 at 7:38 PM, Jon Elson wrote: > I wrote a disassembler for the NS405/NS455 in Pascal on my CP/M system, in > 1985. > If this code would be of any use, I can let you have it. I'm guessing > this was written for the UCSD Pascal system as run under CP/M. I have no > idea how

Re: Weird Lear-Siegler ADM-3A board

On 06/05/2018 07:15 PM, Eric Smith via cctalk wrote: On Tue, Jun 5, 2018 at 1:30 PM, Noel Chiappa via cctalk < cctalk@classiccmp.org> wrote: This is now available through here: http://gunkies.org/wiki/Term-Mite_ST_Smart_Terminal Thanks! If someone dumps the ROM of the Zentec ADM3

Re: Weird Lear-Siegler ADM-3A board

> Jon Elson > How/where should I submit this? This is now available through here: http://gunkies.org/wiki/Term-Mite_ST_Smart_Terminal I put in a little infrastructure around it (articles on the Term-Mite, NS405, etc), using info I dug up online. Noel

Re: Weird Lear-Siegler ADM-3A board

> On 29 May 2018, at 08:10, Eric Smith wrote: > > On Fri, May 25, 2018 at 3:30 PM, Adrian Graham via cctalk > mailto:cctalk@classiccmp.org>> wrote: > Wow, good spot! This one isn’t badged but we just assumed it had fallen off. > Just as I’m typing this he’s messaged me to say it’s actually

Re: Weird Lear-Siegler ADM-3A board

> From: Eric Smith > The NS455 has firmware in masked ROM ... The NS405 has the masked ROM > disabled Ah, thanks muchly! Do you know of _any_ documentation extant for the 455? I couldn't find anything.. > I've been searching for the NS405 manual (not the datasheet) for a very

Re: Weird Lear-Siegler ADM-3A board

On Fri, May 25, 2018 at 3:30 PM, Adrian Graham via cctalk < cctalk@classiccmp.org> wrote: > Wow, good spot! This one isn’t badged but we just assumed it had fallen > off. Just as I’m typing this he’s messaged me to say it’s actually the > ADM-3A ‘10th Anniversary edition’. The manual is on

Re: Weird Lear-Siegler ADM-3A board

On Fri, May 25, 2018 at 1:58 PM, Adrian Graham via cctalk < cctalk@classiccmp.org> wrote: > Hi folks, > > A friend of mine has said ADM-3A and is baffled by the tiny board it > contains, not the usual ‘covering entire base’ discrete logic board they > normally have. Centre of this board is the

Re: Weird Lear-Siegler ADM-3A board

On Sun, May 27, 2018 at 3:10 PM, Noel Chiappa via cctalk < cctalk@classiccmp.org> wrote: > I decided I'd do an article about the Term-Mite for the CHWiki; I found > Ciarcia's long article about the Term-Mite (in his book, which Google books > has); it talks throughout the article about the NS455

Re: Weird Lear-Siegler ADM-3A board

> From: Jon Elson > Steve Ciarcia ... made a board using the NS405 called the Term-Mite. I decided I'd do an article about the Term-Mite for the CHWiki; I found Ciarcia's long article about the Term-Mite (in his book, which Google books has); it talks throughout the article about the

Re: Weird Lear-Siegler ADM-3A board

On 05/25/2018 04:43 PM, Al Kossow via cctalk wrote: Getting a prom dump would be cool. Steve Ciarcia of Byte and Circuit Cellar fame made a board using the NS405 called the Term-Mite. I have a file that says it has a very small patch to tweak the sync timing, and that is was disassembled by

Re: Weird Lear-Siegler ADM-3A board

On 05/25/2018 02:58 PM, Adrian Graham via cctalk wrote: Hi folks, A friend of mine has said ADM-3A and is baffled by the tiny board it contains, not the usual ‘covering entire base’ discrete logic board they normally have. Centre of this board is the Nat Semi NS405 ‘display processor on a

Re: Weird Lear-Siegler ADM-3A board

Looks to me like the circuit board says "ADM 3R"

Re: Weird Lear-Siegler ADM-3A board

Getting a prom dump would be cool. On 5/25/18 12:58 PM, Adrian Graham via cctalk wrote: > Hi folks, > > A friend of mine has said ADM-3A and is baffled by the tiny board it > contains, not the usual ‘covering entire base’ discrete logic board they > normally have. Centre of this board is the

Re: Weird Lear-Siegler ADM-3A board

> On 25 May 2018, at 22:04, Adam Sampson via cctalk > wrote: > > Adrian Graham via cctalk writes: > >> A friend of mine has said ADM-3A and is baffled by the tiny board it >> contains, not the usual ‘covering entire base’ discrete logic board >>

Re: Weird Lear-Siegler ADM-3A board

Adrian Graham via cctalk writes: > A friend of mine has said ADM-3A and is baffled by the tiny board it > contains, not the usual ‘covering entire base’ discrete logic board > they normally have. Here's a similar one that was on eBay a couple of years ago (the full

Weird Lear-Siegler ADM-3A board

Hi folks, A friend of mine has said ADM-3A and is baffled by the tiny board it contains, not the usual ‘covering entire base’ discrete logic board they normally have. Centre of this board is the Nat Semi NS405 ‘display processor on a chip’ which is obviously why the board is so small but