Re: [midatlanticretro] Acquired a PDP-8/E
- On Mon, May 20, 2013 at 6:36 AM, David Gesswein <djg@...> wrote:Dave McGuire said most of what I was going to. You don't need to makea current loop converter. The M8650 can do both RS-232 and current loop.
You just need to make the right cable.
For the music there are programs you can download that will do it. I can
find one to use standalone when your ready. Looks like you have the
high speed tape reader board. I assume you didn't get the PC04/PC05 to
go with it. The white board is custom.That's really good news! I can definitely rig that up to a connector on the backside then for easy RS-232 operation.
I'm really looking forward to hearing some "real music"! And no, I don't have a PC04 or 05, unfortunately. I do have a Facit 4047 punch/reader, and since it's RS-232, I could potentially use that via the serial card. Are these high speed tape readers hard to find?
I have several 8" floppy drives. A few are DSDD, and a few are SSSD, I think. What does it take to get one of these properly interfaced?Kyle
- On 06/06/2013 12:54 PM, Kyle Owen wrote:
> That looks like a nice product, but yes, it's certainly expensive. I've gotOS/8 needs a random-access storage device; paper tape won't do it.
> some FPGA background myself, along with several different microcontrollers,
> so I may see about creating something that will work with my high-speed paper
> tape interface. That could be considered an OS/8 storage device, yes?
Magnetic tape drives are *physically* sequential-access, of course, but the
TU56 (for example) is logically a random-access, block-oriented device. (with
highly variable latency ;))
> I wouldIf this was a generally-directed question...The book you want for "most
> have no idea how to go about writing a driver for it yet, but perhaps it'd be
> in my best interest to start reading up on the commands for the card and then
> learn more about OS/8. Do you have any suggestions on recommended reading for
things OS/8" is the "OS/8 Handbook". It is excellent. Try to find a paper
copy if you can, but it's available in PDF on bitsavers:
Dave McGuire, AK4HZ
New Kensington, PA