Re: A little power circuit explanation please

2017-08-22 Thread Don North via cctalk
On 8/22/2017 4:30 PM, Adrian Graham via cctalk wrote: Hi folks, Failing Atari PSU aside I remembered a question I had ages ago but never posted about the power circuit of another 80s home micro, the Enterprise 64. This machine is powered by a 2A 9V unregulated PSU and internally there’s a pair

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

2017-08-14 Thread Don North via cctalk
On 8/13/2017 4:47 PM, Don North via cctalk wrote: On 8/13/2017 11:34 AM, Jerry Weiss via cctalk wrote: On Aug 13, 2017, at 12:59 PM, Ulrich Tagge wrote: Hi Jerry, I have tried with PDP11GUI, but the first message says "The image contains only 505856 bytes, but disk has 512512 bytes&quo

Re: RX02 *.DSK convert to PDP11GUI Image format

2017-08-14 Thread Don North via cctalk
On 8/14/2017 12:40 AM, Ulrich Tagge via cctalk wrote: Hi all, I have tried to find a specification about the DSK Image format, but have only found the the following: http://www.cpctech.org.uk/docs/dsk.html , which looks like the focus is more on CPC related Disks. Is there any detailed descr

Re: RX02 *.DSK convert to PDP11GUI Image format

2017-08-13 Thread Don North via cctalk
On 8/13/2017 11:34 AM, Jerry Weiss via cctalk wrote: On Aug 13, 2017, at 12:59 PM, Ulrich Tagge wrote: Hi Jerry, I have tried with PDP11GUI, but the first message says "The image contains only 505856 bytes, but disk has 512512 bytes". I have written some disks, and have ignored this message,

Re: PDP-11: DR11-C to FPGA or 1284?

2017-07-31 Thread Don North via cctalk
On 7/31/2017 2:52 PM, Ethan Dicks via cctalk wrote: On Mon, Jul 31, 2017 at 1:52 PM, Fritz Mueller via cctalk wrote: On Jul 31, 2017, at 8:19 AM, Jay Jaeger wrote: I have Ethernet shield for my Arduino Uno, and I use that and a simple (in my case, perl, program to talk to the final destinatio

Re: PDP-11: DR11-C to FPGA or 1284?

2017-07-31 Thread Don North via cctalk
On 7/31/2017 10:52 AM, Fritz Mueller via cctalk wrote: On Jul 31, 2017, at 8:19 AM, Jay Jaeger wrote: I have Ethernet shield for my Arduino Uno, and I use that and a simple (in my case, perl, program to talk to the final destination device. I have two cables, one for each direction, from the

Re: PDP-11: DR11-C to FPGA or 1284?

2017-07-31 Thread Don North via cctalk
On 7/30/2017 7:47 PM, Fritz Mueller via cctalk wrote: So, I have lately been using PDP11GUI to retrieve images of RK05 disk packs and to write images to these packs on a PDP-11. This is awesome, but its a bit frustrating that it takes a couple hours to read or write an image this way. I do, h

Re: TU-58 in simh

2017-04-21 Thread Don North via cctalk
On 4/21/2017 6:55 PM, allison wrote: On 04/21/2017 09:34 PM, Don North via cctalk wrote: On 4/21/2017 4:25 PM, Brian L. Stuart via cctalk wrote: I've seen suggestion that TU-58s are emulated in simh on PDP-11s. However, I'm not seeing it in a show dev and my google-fu is failing

Re: TU-58 in simh

2017-04-21 Thread Don North via cctalk
On 4/21/2017 6:34 PM, Don North via cctalk wrote: On 4/21/2017 4:25 PM, Brian L. Stuart via cctalk wrote: I've seen suggestion that TU-58s are emulated in simh on PDP-11s. However, I'm not seeing it in a show dev and my google-fu is failing me to find any info on how to use it. An

Re: TU-58 in simh

2017-04-21 Thread Don North via cctalk
On 4/21/2017 4:25 PM, Brian L. Stuart via cctalk wrote: I've seen suggestion that TU-58s are emulated in simh on PDP-11s. However, I'm not seeing it in a show dev and my google-fu is failing me to find any info on how to use it. Any pointers on how to boot from a TU-58 image? TIA, BLS Using

Re: If C is so evil why is it so successful?

2017-04-13 Thread Don North via cctalk
On 4/13/2017 7:42 PM, Chuck Guzis via cctalk wrote: On 04/13/2017 05:47 PM, Jerry Weiss wrote: Then my dad got transferred to Chicago and that high school had “access” to IITRAN. By access, that meant punching cards, and waiting for the teacher to load in batch and waiting for the results. L

Re: booting os/8

2017-03-22 Thread Don North via cctalk
On 3/22/2017 5:03 PM, Don North wrote: On 3/22/2017 4:25 PM, Bill Gunshannon wrote: Look here: http://www.vcfed.org/forum/blog.php?12663-AK6DN for info on my Arduino based RX02 emulator using a microSD card. Works on RX11/RXV11/RX8E as RX01, RX211/RXV21/RX28 as RX02. Passes DEC hardware diagn

Re: booting os/8

2017-03-22 Thread Don North via cctalk
On 3/22/2017 4:25 PM, Bill Gunshannon wrote: Look here: http://www.vcfed.org/forum/blog.php?12663-AK6DN for info on my Arduino based RX02 emulator using a microSD card. Works on RX11/RXV11/RX8E as RX01, RX211/RXV21/RX28 as RX02. Passes DEC hardware diagnostics. Reinhard has done an FPGA ba

Re: booting os/8

2017-03-22 Thread Don North via cctalk
On 3/22/2017 10:47 AM, Bill Gunshannon via cctalk wrote: From: cctalk [cctalk-boun...@classiccmp.org] on behalf of W2HX via cctalk [cctalk@classiccmp.org] Sent: Tuesday, March 21, 2017 11:49 PM To: General Discussion: On-Topic and Off-Topic Posts (cctalk@