Re: DIGI-COMP 1 enhanced (Joerg Hoppe)

/Hi Michael, />>/I added a motor drive to my DIGI-COMP I, and wrote 4 web pages about />>/that device. />>//>>/See http://www.retrocmp.com/articles/digi-comp-1/ />>/or just the video https://youtu.be/D6GgxXRJXnw / That is very cool! The RICM has a DIGI-COMP, but we have not done much with it

Re: DIGI-COMP 1 enhanced

Hi, It it possible to get parts for a Digicomp? Mine needs some springs and the thing that connects the clock to the whatever. I used rubber bands instead of springs. The article about 3D print DIY https://www.thingiverse.com/thing:1477209 contains instructions how to bend the wire crank.

DIGI-COMP 1 enhanced

Guys, I added a motor drive to my DIGI-COMP I, and wrote 4 web pages about that device. See http://www.retrocmp.com/articles/digi-comp-1/ or just the video https://youtu.be/D6GgxXRJXnw best regards, Joerg

UniBone: Linux-to-DEC-UNIBUS-bridge, year #1

UniBone emulates now the M9312 bootstrap ROM card. Each of the 5 ROMs can be loaded with MACRO11 listings files from http://www.ak6dn.com/PDP-11/M9312/ The tricky bootvector redirection logic is also implemented. The address to execute after power-on is given as symbolic MACRO11 label. For

UniBone (Linux-to-UNIBUS bridge) available

Hi, After half a year I can dump out UniBones again. Seems I lost contact to several interested guys, hope this broadcast helps. Info: http://www.retrocmp.com/projects/unibone Conditions: http://www.retrocmp.com/projects/unibone/283-unibone-getting-one best regards, Joerg

UniBone: Linux-to-DEC-UNIBUS-bridge, year #1

Hi Pontus, This thread makes me very happy. I have a KS10 that I'm working on (quite slowly). The PSU is checked out and working. Then console seems to work, I can deposit/examine to CRAM and RAM. Next step will be to load micro code and I've been mentally preparing to tackle an RH11

UniBone: Linux-to-DEC-UNIBUS-bridge, year #1

2. When doing 18bit on UNIBUS-A we put all kind of signal levels on parity lines PA,PB = DATA<16:17>. Won't the KS10 CPU interpret these as real BUS parity errors generated by some UNIBUS-A device? I asked nonsense here: if UNIBUS-A is 18bit too, no parity will be evaluted of course. Joerg

UniBone: Linux-to-DEC-UNIBUS-bridge, year #1

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UniBone: Linux-to-DEC-UNIBUS-bridge, year #1

>> Well, I was expecting to have to do all of the work myself. There’s still the problem of the disk Unibus itself to solve > -the disk UBA doesn’t terminate into a normal Unibus. > It goes into the disk RH11 directly, and the bus is terminated on the far end of the RH11. I’d either have to buy

UniBone: Linux-to-DEC-UNIBUS-bridge, year #1

Daniel, >> >> Yes, can (get a kit with SMT work done) > > OK, that’s the answer I needed; > If I want to put one of these in a KS10, can the parity lines be hacked from the software > (the KS10 uses them as two extra data bits) or are they hard-wired to parity? Several people asked to make

UniBone: Linux-to-DEC-UNIBUS-bridge, year #1

*What it is:* In case you forgot: UniBone is a plugin board to DEC PDP-11 UNIBUS systems containing a BeagleBone Black. See http://retrocmp.com/projects/unibone. Is it possible to get it as a "kit+" where the SMD components only are already soldered onto the bare board, but all the rest left

UniBone: Linux-to-DEC-UNIBUS-bridge, year #1

Its been a long time since last public post about UniBone, time for a bragging broadcast. *What it is:* In case you forgot: UniBone is a plugin board to DEC PDP-11 UNIBUS systems containing a BeagleBone Black. See http://retrocmp.com/projects/unibone. This combo can simulate PDP-11 devices

Re: Another DEC UNIBUS signal adapter: UniProbe

Hi, Did you happen to take a look at my UA11? It’s different in that it goes into an SPC slot. Yes, I was pointed to it after UniProbe was out. Good I saw it not earlier, would have killed my project ;-) best regards, Joerg TTFN - Guy On Feb 26, 2019, at 11:07 PM, Jörg Hoppe via

Another DEC UNIBUS signal adapter: UniProbe

Hi, most people dealing seriously with older PDP-11s have found means to monitor the UNIBUS traffic. My latest approach is www.retrocmp.com/tools/uniprobe UniProbe is a M9302 terminator, a LED display, a probe for logic analyzer. It can be mounted in Standard or Modified UNIBUS sockets. I'm

Plug+Play for PDP-11/40 panels - BlinkenBone update

Hi guys, There is now a special 11/40 adapter board for the BlinkenBone system. With that you can plug a physical 11/40 panel to the extended SimH running on a BeagleBone. Surprisingly there was some demand for the 11/70 panel adapter, so adding the '40 panel may be worth mentioning. There

UniBone - access DEC PDP-11 UNIBUS under Linux

Guys, I'm about to finish another project: "UniBone" - a Linux-to-UNIBUS bridge, based on the BeagleBone Black. It is supposed to be a development platform for device emulation. At the moment it can emulate memory, emulate an RL11 controller with 4 RL drives attached, and act as UNIBUS

Photorealistic frontpanels for DEC PDP simulations under SimH

Guys, there are updates to the photorealistic PDP-8/10/11/15 panel simulations for SimH, code name "BlinkenBone". * Added bigger images for 3000 pixel width screens. * made PDP-11/70 panel behaviour compatible with the real machine   (after tests performed at the PDP-11/70 "Miss Piggy" at

RT-11 5.x install tapes?

Hi all, for work on TU58 emulator "tu58fs" I'd like to experiment with oversized tape images under RT-11 5.5, 5.6 and 5.7. The images I know about are the classiccmp collections, Earl Evans pointed me to the RT11DV50.ISO archive. However, in these images the TU58 driver files