> On Dec 10, 2021, at 12:57 PM, Guy Sotomayor via cctalk
> wrote:
>
> All valid points. My frustration has been where I see projects that use a
> RPi for something that a simple HW circuit/CPLD/FPGA could have done it
> simpler and more efficiently.
>
> I've lost count of the FPGA boards
On 12/10/21 6:21 AM, Jay Jaeger via cctalk wrote:
On 12/9/2021 11:06 PM, Guy Sotomayor via cctalk wrote:
On 12/9/21 8:15 PM, Jay Jaeger via cctalk wrote:
One could perhaps emulate the RS64 data stream using a fast-enough
micro, ala the MFM emulator.
Why does everyone seem to want to emul
On Fri, Dec 10, 2021 at 1:37 PM Noel Chiappa via cctalk
wrote:
>
> > From: Tony Duell
>
> > I have _two_. But alas nothing to connect them to.
>
> Well, there are still a good flock of machines with IBM channels around, but
> _you_ don't have one (I can't blame you :-). I wonder if any of
> On Dec 9, 2021, at 11:15 PM, Jay Jaeger via cctalk
> wrote:
>
> On 12/9/2021 7:49 PM, Noel Chiappa via cctalk wrote:
>> > From: Steven Malikoff
>> > Was there ever an indicator panel for the RC11? .. I have a set of RC11
>> > modules .. No backplane though. I've not found any do
On 12/9/2021 11:06 PM, Guy Sotomayor via cctalk wrote:
On 12/9/21 8:15 PM, Jay Jaeger via cctalk wrote:
One could perhaps emulate the RS64 data stream using a fast-enough
micro, ala the MFM emulator.
Why does everyone seem to want to emulate HW like this with a micro when
a reasonable FPGA
> From: Tony Duell
> I have _two_. But alas nothing to connect them to.
Well, there are still a good flock of machines with IBM channels around, but
_you_ don't have one (I can't blame you :-). I wonder if any of the people
with IBM channel machines have any need to connect to an -11?
Sp
On 12/9/21 8:15 PM, Jay Jaeger via cctalk wrote:
One could perhaps emulate the RS64 data stream using a fast-enough
micro, ala the MFM emulator.
Why does everyone seem to want to emulate HW like this with a micro when
a reasonable FPGA implementation with some external FRAM would do the jo
On 12/9/2021 7:49 PM, Noel Chiappa via cctalk wrote:
> From: Steven Malikoff
> Was there ever an indicator panel for the RC11? .. I have a set of RC11
> modules .. No backplane though. I've not found any docs for these, I
suppose
> they're probably on bitsavers and have over
On Thu, Dec 9, 2021 at 4:47 PM Noel Chiappa via cctalk
wrote:
> - the DX11 (I don't think anyone's got one of those)
Technically correct, I have _two_. But alas nothing to connect them to.
-tony
> From: Steven Malikoff
> Was there ever an indicator panel for the RC11? .. I have a set of RC11
> modules .. No backplane though. I've not found any docs for these, I
suppose
> they're probably on bitsavers and have overlooked them.
Looking at the manual and engineering drawing
Noel said
> The only PDP-11 devices which used indicator panels which I know of were:
>
> - the DX11 (I don't think anyone's got one of those)
> - the RF11 (ditto - although Guy was discussing emulating one at one point)
> - the RP11 (but the indicator panel is built into the controller rack there,
> From: Jay Jaeger
> Also, if someone (else, presumably) does up a replica of the indicator
> panel board (perhaps with the option to use LEDs, with some resistor
> packs that could be bypassed for lamps
Two points.
First,there's the question 'are you trying to produce somethi
On Mon, Dec 6, 2021 at 9:42 AM David Bridgham via cctalk
wrote:
> The inlays are mostly not done with any tools I have. I do the graphics
> with Inkscape. Rod made up the blanks with silk screening. Then I have
> the white printing done at a printshop I found who has a large, flatbed
> printer
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