On Wed, 24 Apr 2013, Gregg Levine wrote:
On Wed, Apr 24, 2013 at 6:11 PM, Cory Smelosky <b4 at gewt.net> wrote:
On Wed, 24 Apr 2013, John Wilson wrote:
From: Clem Cole <clemc at ccc.com>
Yeah, an Arduino as the USB to T.ls would make this pretty trivial as a
"general" solution.
I'm a year or two behind in Arduini -- do you mean there are versions that
realistically let you use the USB port as more than just serial I/O? That
would be super sweet!
That said, the RPi should be able to support it without anything other
than
the leds and switches added to the AdaFruit breakout board, I have.
Don't get me started on the RPi! By the time they got around to shipping
me what was by then an off-rev board I was so pissed I cut it in half with
a
chainsaw.
I got a later rev board as an apology. Weird.
John Wilson
D Bit
--
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
Hello!
You did? When?
Around last year.They took many months and it kept getting delayed.
That was the doing of the things that are trying to eat the mail that
wanders past Dave's place.
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
--
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
On Wed, Apr 24, 2013 at 6:11 PM, Cory Smelosky <b4 at gewt.net> wrote:
On Wed, 24 Apr 2013, John Wilson wrote:
From: Clem Cole <clemc at ccc.com>
Yeah, an Arduino as the USB to T.ls would make this pretty trivial as a
"general" solution.
I'm a year or two behind in Arduini -- do you mean there are versions that
realistically let you use the USB port as more than just serial I/O? That
would be super sweet!
That said, the RPi should be able to support it without anything other
than
the leds and switches added to the AdaFruit breakout board, I have.
Don't get me started on the RPi! By the time they got around to shipping
me what was by then an off-rev board I was so pissed I cut it in half with
a
chainsaw.
I got a later rev board as an apology. Weird.
John Wilson
D Bit
--
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
Hello!
You did? When?
That was the doing of the things that are trying to eat the mail that
wanders past Dave's place.
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
On Wed, 24 Apr 2013, John Wilson wrote:
From: Clem Cole <clemc at ccc.com>
Yeah, an Arduino as the USB to T.ls would make this pretty trivial as a
"general" solution.
I'm a year or two behind in Arduini -- do you mean there are versions that
realistically let you use the USB port as more than just serial I/O? That
would be super sweet!
That said, the RPi should be able to support it without anything other than
the leds and switches added to the AdaFruit breakout board, I have.
Don't get me started on the RPi! By the time they got around to shipping
me what was by then an off-rev board I was so pissed I cut it in half with a
chainsaw.
I got a later rev board as an apology. Weird.
John Wilson
D Bit
--
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
From: Clem Cole <clemc at ccc.com>
Yeah, an Arduino as the USB to T.ls would make this pretty trivial as a
"general" solution.
I'm a year or two behind in Arduini -- do you mean there are versions that
realistically let you use the USB port as more than just serial I/O? That
would be super sweet!
That said, the RPi should be able to support it without anything other than
the leds and switches added to the AdaFruit breakout board, I have.
Don't get me started on the RPi! By the time they got around to shipping
me what was by then an off-rev board I was so pissed I cut it in half with a
chainsaw.
John Wilson
D Bit
El 24/04/2013, a les 21:38, Clem Cole <clemc at ccc.com> va escriure:
That said, the RPi should be able to support it without anything other than the leds and switches added to the AdaFruit breakout board, I have.
Not enough GPIO pins... You will need to multiplex the pins. I several 74HC595 to drive the LEDs, and I'm experimenting with 74HC165 to drive banks of DIP switches as input (although that project is quite freezing now). I posted some details in my blog (Blinkenlights: Not so difficult as I thought), with links to the code I have written for the 4.0 version of simh, and a java app with virtual LEDs also. My version, by the way, runs in an Arduino, but I also wrote a small "client" for the Pi. I just switched to the Arduino because I have heard horror stories about dead Raspis after stupid cabling mistakes messing with the GPIO pins...
Jordi Guillaumes i Pons
jg at jordi.guillaumes.name
HECnet: BITXOV::JGUILLAUMES
On Wed, Apr 24, 2013 at 3:16 PM, John Wilson <wilson at dbit.com> wrote:
Anyway at this point I think USB is
the way to go so that's about item #117 on my to-do list.
Yeah, an Arduino as the USB to T.ls would make this pretty trivial as a "general" solution.
That said, the RPi should be able to support it without anything other than the leds and switches added to the AdaFruit breakout board, I have.
From: Gregg Levine <gregg.drwho8 at gmail.com>
In going over my collection of things PDP-11 I came across a some what
startling discovery. That of this one, I have nearly all the releases
of E11 from the 0.8 one all the way to the recent one.
Nice! The bloating of the executable gets pretty embarrassing if you go
back far enough (it takes almost no code to boot RT-11 as an 11/34a -- the
other half-megabyte of flab is for ... well it must be for *something* ...).
Now I've gone and read all or nearly all of the documentation file
that it came with. There are two instructions there, one of is the
SWITCH one, and I quote here:
Unless I've gone senile (how would I know?), that flavor of that command
is still present in the latest DOS and stand-alone versions too.
And of course my question is one of, were those actually tested with
real hardware attached?
I never built an ISA board to do it. I had intended to, and I was going to
drill a blank 5.25" drive bay cover for LEDs and toggle switches, but then
I got the idea for the LPT-port hack with software muxing which does the
display part with way less hardware, so I never bothered. But I did test
it with a random device or two to convince myself it was working correctly
(reads and writes PC regs OK).
Doing a PCB layout for an ISA lights-n-switches board would take a weekend
at most so I'd be happy to do it, if anyone cared. Doesn't Bob Armstrong
already make something better though? Anyway at this point I think USB is
the way to go so that's about item #117 on my to-do list.
John I imagine you are aware that these early releases are floating
all over the Internet?
Yep, which is kind of sweet! And they're from before I decided to have a
go at making a living with PDP-11s, so they don't have any restrictions on
commercial use. Lots of very embarrassing bugs, but that'll always be true.
John Wilson
D Bit
On Wed, Apr 24, 2013 at 12:18 PM, Cory Smelosky <b4 at gewt.net> wrote:
On Wed, 24 Apr 2013, Gregg Levine wrote:
Hello!
In going over my collection of things PDP-11 I came across a some what
startling discovery. That of this one, I have nearly all the releases
of E11 from the 0.8 one all the way to the recent one.
The 0.9 release was retrieved from GENIE back when it was trying to be
the same as Compuserve, and that was around 1994. (Both have since
folded it seems.) At the time I was just beginning to understand
exactly what I had obtained from that site. I didn't. I do now.
Now that's going back a ways!
Now I've gone and read all or nearly all of the documentation file
that it came with. There are two instructions there, one of is the
SWITCH one, and I quote here:
"SET SWITCH n
SET SWITCH PORT n
If PORT is specified, specifies the octal 80x86 I/O address of a
word port which when read as a word, gives the current 16-bit
switch register value. Otherwise (PORT not specified), sets the
value of the emulated SR to the octal number n. "
And the other one is named this DISPLAY one, and I quote here:
"SET DISPLAY NONE
SET DISPLAY PORT n
If PORT is specified, specifies the octal 80x86 I/O address of a
word port which when written as a word, sets the 16-bit display
register. If NONE is specified, then anything written to the DR
by the PDP-11 is ignored (the default condition). So if you
want to see pretty blinky lights, get out your wire wrap tool
and a couple of 74LS273s and whatever else."
And of course my question is one of, were those actually tested with
real hardware attached?
John I imagine you are aware that these early releases are floating
all over the Internet?
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
--
Cory Smelosky
http://gewt.net/ Personal stuff
http://gimme-sympathy.org Experiments
Hello!
Yes and by sorting through the documentation between the versions we
can see how the entire business evolved. At one point John worked with
Bob of the SIMH fraternity to confirm that each function behaves
appropriately. Bob it turns out was part of the J-11 development team
back then.
For a lot of us its common to start our ideas using SIMH for testing
ideas, and that also includes networking configuration problems. And
when it becomes necessary to run them full time they'd get moved to
E11 obviously for the fun of it, as a hobbyist motivation
For myself regarding those two commands for the E11 version 0.9
release, I discovered that it might be possible to make work some of
my ideas. Now to track down the hosting hardware......
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
On Wed, 24 Apr 2013, Gregg Levine wrote:
Hello!
In going over my collection of things PDP-11 I came across a some what
startling discovery. That of this one, I have nearly all the releases
of E11 from the 0.8 one all the way to the recent one.
The 0.9 release was retrieved from GENIE back when it was trying to be
the same as Compuserve, and that was around 1994. (Both have since
folded it seems.) At the time I was just beginning to understand
exactly what I had obtained from that site. I didn't. I do now.
Now that's going back a ways!
Now I've gone and read all or nearly all of the documentation file
that it came with. There are two instructions there, one of is the
SWITCH one, and I quote here:
"SET SWITCH n
SET SWITCH PORT n
If PORT is specified, specifies the octal 80x86 I/O address of a
word port which when read as a word, gives the current 16-bit
switch register value. Otherwise (PORT not specified), sets the
value of the emulated SR to the octal number n. "
And the other one is named this DISPLAY one, and I quote here:
"SET DISPLAY NONE
SET DISPLAY PORT n
If PORT is specified, specifies the octal 80x86 I/O address of a
word port which when written as a word, sets the 16-bit display
register. If NONE is specified, then anything written to the DR
by the PDP-11 is ignored (the default condition). So if you
want to see pretty blinky lights, get out your wire wrap tool
and a couple of 74LS273s and whatever else."
And of course my question is one of, were those actually tested with
real hardware attached?
John I imagine you are aware that these early releases are floating
all over the Internet?
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
--
Cory Smelosky
http://gewt.net/ Personal stuff
http://gimme-sympathy.org Experiments
Hello!
In going over my collection of things PDP-11 I came across a some what
startling discovery. That of this one, I have nearly all the releases
of E11 from the 0.8 one all the way to the recent one.
The 0.9 release was retrieved from GENIE back when it was trying to be
the same as Compuserve, and that was around 1994. (Both have since
folded it seems.) At the time I was just beginning to understand
exactly what I had obtained from that site. I didn't. I do now.
Now I've gone and read all or nearly all of the documentation file
that it came with. There are two instructions there, one of is the
SWITCH one, and I quote here:
"SET SWITCH n
SET SWITCH PORT n
If PORT is specified, specifies the octal 80x86 I/O address of a
word port which when read as a word, gives the current 16-bit
switch register value. Otherwise (PORT not specified), sets the
value of the emulated SR to the octal number n. "
And the other one is named this DISPLAY one, and I quote here:
"SET DISPLAY NONE
SET DISPLAY PORT n
If PORT is specified, specifies the octal 80x86 I/O address of a
word port which when written as a word, sets the 16-bit display
register. If NONE is specified, then anything written to the DR
by the PDP-11 is ignored (the default condition). So if you
want to see pretty blinky lights, get out your wire wrap tool
and a couple of 74LS273s and whatever else."
And of course my question is one of, were those actually tested with
real hardware attached?
John I imagine you are aware that these early releases are floating
all over the Internet?
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
