Re: PDP-11 RL02 disk emulation
On Sat, Nov 12, 2016 at 5:35 PM, Scott Baker wrote: > Hi* > >>> Any chance it could be put into 'production'? > > *I placed an order today for 3 RL02 emulator interface boards from OshPark. > I expect it will take 2 weeks to get the boards back from OshPark. > I am leveraging RL02 emulator work from Reinhard Heuberger, but I am > using a newer FPGA board than his current design (the FPGA board that > he is currently usingis not available), so there is some porting work > required which will also take some time. Oh I didn't know this was on the menu. I'm in a morass of pdp-11s at the moment; I could certainly use one of these. Mike http://www.corestore.org 'No greater love hath a man than he lay down his life for his brother. Not for millions, not for glory, not for fame. For one person, in the dark, where no one will ever know or see.'
Re: PDP-11 RL02 disk emulation
My 11/34 and 11/10 would be very happy to have one of these each . Doug Jackson On 25 October 2016 5:28:05 am AEDT, Scott Baker wrote: >Hi Noel, > >>> Any chance it could be put into 'production'? >Sure, if there is interest, I could make a run of boards. > >>> Also, what FPGA board are you using? I assume it's one that has an >SD >>> card socket or something, for actually storing the bits on? > >My project is just an interface board for an existing RL02 emulator >project: www.pdp11gy.com There are a multiple project revisions listed >on >the pdp11gy.com site that use different Altera FPGA dev boards: DE0 >Nano, >DE0 Nano SOC, and BeMicro CV. > >I was planning to use a Terasic DE0 Nano dev board since these boards >can >be found on eBay from $50 to $100. The DE0 nano does not have an >micro-SD >card socket which is why there is a socket on my interface board. >http://sierracircuitdesign.ddns.net/temp/RL02 > >The DE0 Nano SOC, and BeMicro CV dev boards have micro-SD card sockets, >so >if you used one of those, then you would not need to populate the >micro-SD >socket on the interface board. According to the author of the >www.pdp11gy.com RL02 project, the 40-pin headers on DE0 Nano, DE0 Nano >SOC, >and BeMicro CV are compatible, so you could use my interface board with >any >of these boards. > >Regards, >Scott -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
Re: PDP-11 RL02 disk emulation
On Sun, Oct 23, 2016 at 11:08 AM, Noel Chiappa wrote: > > From: Scott Baker > > > Feedback on this project is most welcome. > > Any chance it could be put into 'production'? It just seems to me that > rather than having 53 people send in individual orders for boards, etc > it would be better (and also perhaps get a price break due to volume) > to do a small run. (You may not want to produce complete boards, but > even kits would be useful.) > > I think an RL02 simulator is a great idea; those of us with RL0x > controllers > could use this most of the time, avoiding potential damage to our old > drives/disks; I know I would buy several if they were available. > > Also, what FPGA board are you using? I assume it's one that has an SD > card socket or something, for actually storing the bits on? > > Noel > Would also be useful for testing unknown controllers and RL02 packs. b
Re: PDP-11 RL02 disk emulation
> From: Scott Baker > Feedback on this project is most welcome. Any chance it could be put into 'production'? It just seems to me that rather than having 53 people send in individual orders for boards, etc it would be better (and also perhaps get a price break due to volume) to do a small run. (You may not want to produce complete boards, but even kits would be useful.) I think an RL02 simulator is a great idea; those of us with RL0x controllers could use this most of the time, avoiding potential damage to our old drives/disks; I know I would buy several if they were available. Also, what FPGA board are you using? I assume it's one that has an SD card socket or something, for actually storing the bits on? Noel
Re: PDP-11 RL02 disk emulation (project info links posted to list)
On 10/17/2016 2:54 AM, jim stephens wrote: Has anyone built or had any experience with this (or any other) RL02 emulator? This is the end status of the page. in update 1.1B, he states that the board is not available, but shows the board: http://www.pdp11gy.com/doneE.html In update 1.1C there are some project files. I have saved them to look at, but don't know if enough is there to try to duplicate his work, or if it will result in a working drive emulation. Project information Technical information: MFM decoder http://www.pdp11gy.com/MFM-D.html MFM encoder http://www.pdp11gy.com/MFME-D.html Project information: The beginning http://www.pdp11gy.com/hist2D.html Architecture http://www.pdp11gy.com/hist3D.html Flow chart http://www.pdp11gy.com/hist1D.html perhaps someone can contact him. I won't put his email address or name here for archival, but it is on this page: http://www.pdp11gy.com/0E.html Looks like a nice project to help with, or pick up. thanks Jim
RE: PDP-11 RL02 disk emulation
-Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of jim stephens Sent: Monday, October 17, 2016 5:54 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: PDP-11 RL02 disk emulation On 10/17/2016 1:03 AM, Scott Baker wrote: > Hi, > > Has anyone built or had any experience with this (or any other) RL02 > emulator? > > http://www.pdp11gy.com/indexE.html#file:///E:/homepage/indexE.html > > Thanks, > Scott I think that is the project that Al refers to in a posting Friday: "There is also the German RL02 drive emulator, which seems to have stalled again" http://www.classiccmp.org/pipermail/cctalk/2016-October/028417.html It sounded like the fellow did a lot of good research, but I didn't see a completed state of the project. And he had questions about the electronics that I didn't see clear answers posted to. thanks Jim - See this thread - Lou got one working using a DE0 Nano: http://www.vcfed.org/forum/showthread.php?40147-Improved-RL01-RL02-disc-simulator-available Also: http://www.vcfed.org/forum/showthread.php?44728-Request-for-comment-Modifed-circuit-of-RL01-RL02-disc-emu-I-F-(mod-from-pdp11gy-com) -
Re: PDP-11 RL02 disk emulation
On 10/17/2016 1:03 AM, Scott Baker wrote: Hi, Has anyone built or had any experience with this (or any other) RL02 emulator? http://www.pdp11gy.com/indexE.html#file:///E:/homepage/indexE.html Thanks, Scott I think that is the project that Al refers to in a posting Friday: "There is also the German RL02 drive emulator, which seems to have stalled again" http://www.classiccmp.org/pipermail/cctalk/2016-October/028417.html It sounded like the fellow did a lot of good research, but I didn't see a completed state of the project. And he had questions about the electronics that I didn't see clear answers posted to. thanks Jim