Re: RX02 *.DSK convert to PDP11GUI Image format

2017-08-15 Thread Jerry Weiss via cctalk
> On Aug 14, 2017, at 11:49 PM, Glen Slick via cctalk > wrote: > > On Sun, Aug 13, 2017 at 9:00 AM, Ulrich Tagge via cctalk > wrote: >> Hi all, >> >> maybe someone can help. >> I would like to install TCP/IP on my RT-11 system. >> After a short search I have found the following, which I would

RE: DECstation 220. Another Impasse

2017-08-15 Thread Peter Coghlan via cctalk
> > I have looked at this problem a little more. I have two motherboards, > neither of which work, but one at least produces a corrupted video pattern. > The one that works best appears not to be writing to the video memory. When > I look at the EMEM pin on the Paradise PVGA1A chip I can see a sign

RE: DECstation 220. Another Impasse

2017-08-15 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Peter > Coghlan via cctalk > Sent: 15 August 2017 09:48 > To: General Discussion: On-Topic and Off-Topic Posts > Subject: RE: DECstation 220. Another Impasse > > > > > I have looked at this problem a

Re: DECstation 220. Another Impasse

2017-08-15 Thread Anders Nelson via cctalk
This is fascinating - looking forward to what you find! I've spent hours tracing bad grounds before, I hope you find a corroded ground pin somewhere and that's that. =] -- Anders Nelson +1 (517) 775-6129 www.erogear.com On Tue, Aug 15, 2017 at 8:18 AM, Rob Jarratt via cctalk < cctalk@classicc

Re: nassa tapes destroyed but the family left to dispose of the computer?

2017-08-15 Thread Eric Christopherson via cctalk
On Sun, Aug 13, 2017 at 7:19 PM, Al Kossow via cctalk wrote: > https://motherboard.vice.com/en_us/article/kzakkn/nasa- > destroyed-hundreds-of-mystery-tapes-found-in-a-dead-mans- > basement-apollo-era > > well, a metal scrapper contacted NASA, so I would imagine with him. > > at least we know now

Re: RX02 *.DSK convert to PDP11GUI Image format

2017-08-15 Thread Don North via cctalk
On 8/15/2017 2:10 AM, Jerry Weiss via cctalk wrote: On Aug 14, 2017, at 11:49 PM, Glen Slick via cctalk wrote: On Sun, Aug 13, 2017 at 9:00 AM, Ulrich Tagge via cctalk wrote: Hi all, maybe someone can help. I would like to install TCP/IP on my RT-11 system. After a short search I have found

Re: RX02 *.DSK convert to PDP11GUI Image format

2017-08-15 Thread Fred Cisin via cctalk
Howzbout: Make a metadata file that is exactly 6656 bytes long that provides identification information, including whether it is physical sector V logical block sequence, and even a short summary of why.

RE: DECstation 220. Another Impasse

2017-08-15 Thread Rob Jarratt via cctalk
> > Some great ideas Peter, thanks! I will double check the scope, I wonder if mine > doesn't have the bandwidth to show a glitch that is occurring? I will consider > cutting the track, which is also a great idea. I really do have to hope that it isn't > the gate array, it is my last resort, altho

Re: RX02 *.DSK convert to PDP11GUI Image format

2017-08-15 Thread Jerry Weiss via cctalk
> On Aug 15, 2017, at 2:33 PM, Don North wrote: > > On 8/15/2017 2:10 AM, Jerry Weiss via cctalk wrote: >>> ... >> >> As far as the DSK format, the files from at Alan’s site are logical >> disk images. Logical block 0,1,2,3 from from a DY sized volume starting at >> Track 1. In this case track

RE: DECstation 220. Another Impasse

2017-08-15 Thread shadoooo via cctalk
Hello Rob, please try to check the status of the OE input, comparing it to the other motherboard. Andrea