19 May
2009
19 May
'09
7:21 a.m.
ard at p850ug1.demon.co.uk (Tony Duell) wrote:
Yeah. HP was actually the other company that actually seemed to read the
standard. I don't know of anyone else than DEC and HP that even tried to
actually follow the specs.
One could only wish companies had. Everything would have been soo much
easier in that case. Now almost everyone is confused when it comes to
serial communication, and it's not because it actually is difficult, but
people have just become so confused because they think it works one way
just because the equipment they have do it that way, and when coming to
any other equipment, nothing works the same way they are used to.
You are right of course. If you modify the hardware, you can always
solve the problem.
But it is probably a bit more complex than your suggestion above. But
yes, any can be done.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
In general,
when talking about DEC equipment, the answer to that
question is *always* no, for the simple fact that DEC didn't do hardware
flow control. Hardware flow control is actually against the RS-232 spec,
and DEC didn't abuse standards (unlike most other companies).
This reminds me of a comment I made about the HP82164 (HPIL to RS232
interface). That thing follows the RS232 standard to the letter (for
example, it correctly handles the cotnrol lines in half duplex mode).
It's just a pity that nobody else does :-). Getting it to work with some
RS232 devices is 'interesting'.. (And to make
it clear: hardware flow control is definitely not possible
towards a PDP8)
'Nothing is impossible except skiing through a revolving door' :-)
More seriously,. I would have thought you could make hardware
modifications ot the serial interface PCB, possibly to gate ome of the
ready signals with the flow control input. Or (in this case), detect the
CR (or is it LF that's the problem?) and then hold the ready line
deasseted either for enough time for the VT05 to complete its operation
or until it gets some ecternal acknowledge signal.
No, I am not suggesting this is a sensible solution to the problem,but it
is _possible_ 
19 May
19 May
6:17 p.m.
On May 19, 2009, at 3:21 AM, Johnny Billquist wrote:
Yeah. HP was actually the other company that actually seemed to
read the standard. I don't know of anyone else than DEC and HP that
even tried to actually follow the specs.
One could only wish companies had. Everything would have been soo
much easier in that case. Now almost everyone is confused when it
comes to serial communication, and it's not because it actually is
difficult, but people have just become so confused because they
think it works one way just because the equipment they have do it
that way, and when coming to any other equipment, nothing works the
same way they are used to.
Well, you've got to admit that things would've been a whole lot
easier if it weren't for the whole DTE/DCE fiasco.
-Dave
--
Dave McGuire
Port Charlotte, FL
In general, when talking about DEC equipment, the
answer to that
question is *always* no, for the simple fact that DEC didn't do
hardware flow control. Hardware flow control is actually against
the RS-232 spec, and DEC didn't abuse standards (unlike most
other companies).
This reminds me of a comment I made about the HP82164 (HPIL to
RS232 interface). That thing follows the RS232 standard to the
letter (for example, it correctly handles the cotnrol lines in
half duplex mode). It's just a pity that nobody else does :-).
Getting it to work with some RS232 devices is 'interesting'.. 
10:45 p.m.
New subject: FS: Siemens FDD 100-8
I've one tested working in very good shape Siemens 8" FDD 100-8 drive
for sale. Just thought I'd post here for any offers prior to the ebay
route. I'll let go here for 25-50% less than ebay.
Email for photos.
jS
10:48 p.m.
New subject: FF: Tandon TM848-01
I've one non-functional but very good physical shape Tandon 8" TM848-01
available for free.. just cover the shipping. Perfect for parts.
Email for photo.
jS
20 May
20 May
2:20 a.m.
New subject: FF: Tandon TM848-01
Claimed.
js at cimmeri.com wrote:
I've one non-functional but very good physical shape Tandon 8"
TM848-01 available for free.. just cover the shipping. Perfect for
parts.
Email for photo.
jS
22 May
22 May
4:52 p.m.
New subject: FA: Synertek SYM
Synertek SYM Model 1
excellent condition, tested working
with:
- original box, foam, static bag
- hardware manual
- programming manual
- SYM reference manual
- reference card
- product guides
- seminar workbook
- 2 connectors
Photos:
http://www.cimmeri.com/sym1-9.jpg
http://www.cimmeri.com/sym1-2.jpg
http://www.cimmeri.com/sym1-4.jpg
http://www.cimmeri.com/sym1-1.jpg
http://www.cimmeri.com/sym1-6.jpg
http://www.cimmeri.com/sym1-7.jpg
This post valid for 1 week from date+ time of post. Please submit
offers via email. Item has a reserve which I've not made up my mind on
yet. Would also consider as trade towards a half-height PDP 11/04 or
11/05.
Thank you,
John S.
Maryland
4:59 p.m.
New subject: FA: Synertek SYM
On Fri, May 22, 2009 at 12:52 PM, js at cimmeri.com <js at cimmeri.com> wrote:
Synertek SYM Model 1
excellent condition, tested working
That looks gorgeous (but I already have one, so I'll let others vie for it).
-ethan
6:55 p.m.
New subject: FA: Synertek SYM
Ethan Dicks wrote:
On Fri, May 22, 2009 at 12:52 PM, js at cimmeri.com
<js at cimmeri.com> wrote:
Thanks for the compliment.
Synertek SYM Model 1
excellent condition, tested working
That looks gorgeous (but I already have one, so I'll let others vie for it).
-ethan 
23 May
23 May
1:20 a.m.
New subject: FA: Synertek SYM
----------------------------------------
Date: Fri, 22 May 2009 13:55:08 -0500
From: js at cimmeri.com
To:
Subject: Re: FA: Synertek SYM
Ethan Dicks wrote:
Hi
But it doesn't come with a FDC-1 board or a KTM2.
Dwight
_________________________________________________________________
Hotmail? has ever-growing storage! Don?t worry about storage limits.
http://windowslive.com/Tutorial/Hotmail/Storage?ocid=TXT_TAGLM_WL_HM_Tutori…
On Fri, May 22, 2009 at 12:52 PM, js at
cimmeri.com wrote:
Thanks for the compliment. Synertek SYM Model 1
excellent condition, tested working
That looks gorgeous (but I already have one, so I'll let others vie for it).
-ethan 
2:37 p.m.
New subject: FA: Synertek SYM
----------------------------------------
Date: Sat, 23 May 2009 01:00:51 -0700
From: eric at brouhaha.com
To:
Subject: Re: FA: Synertek SYM
Dwight wrote:
Hi
If given the choise between a Delorean and a Lotus Europa with
the twin cam, I'd take the Lotus but if the Delorean came with
the flux capacitor I'd be tempted.
It is a nice Sym board though, just bare bones.
No extra ROMs, I/O or extra RAM. It is an early board
as well.
Dwight
_________________________________________________________________
Hotmail? goes with you.
http://windowslive.com/Tutorial/Hotmail/Mobile?ocid=TXT_TAGLM_WL_HM_Tutoria…
But it doesn't come with a FDC-1 board or a
KTM2.
And if someone offered you a Delorean, I suppose you'd complain that it
didn't come with a flux capacitor. :-)
3:18 p.m.
New subject: FA: Synertek SYM
dwight elvey wrote:
Thanks. Btw, adding the RAM, ROM, and a Commodore C1541 drive are all
trivial. I have the RAM for it already.
jS
Date: Sat, 23 May 2009 01:00:51 -0700
From: eric at brouhaha.com
To:
Subject: Re: FA: Synertek SYM
Dwight wrote:
Hi
If given the choise between a Delorean and a Lotus Europa with
the twin cam, I'd take the Lotus but if the Delorean came with
the flux capacitor I'd be tempted.
It is a nice Sym board though, just bare bones.
No extra ROMs, I/O or extra RAM. It is an early board
as well.
Dwight But it doesn't come with a FDC-1 board or a
KTM2.
And if someone offered you a Delorean, I suppose you'd complain that
it
didn't come with a flux capacitor. :-)
3:22 p.m.
New subject: FA: Synertek SYM
On May 23, 2009, at 11:18 AM, js at cimmeri.com wrote:
Thanks. Btw, adding the RAM, ROM, and a Commodore
C1541 drive are
all trivial. I have the RAM for it already.
Putting a 1541 on a SYM? Seriously? (I don't know much about
SYMs...I drooled over them in magazine ads throughout my childhood,
but have never seen one in person.)
-Dave
--
Dave McGuire
Port Charlotte, FL
3:43 p.m.
New subject: FA: Synertek SYM
Putting a 1541 on a SYM? Seriously? (I don't
know much about
SYMs...I drooled over them in magazine ads throughout my childhood,
but have never seen one in person.)
-Dave
Yep. Check out:
http://6502.org/users/dallas/
jS
5:28 p.m.
New subject: FA: Synertek SYM
----------------------------------------
Date: Sat, 23 May 2009 10:43:56 -0500
From: js at cimmeri.com
To:
Subject: Re: FA: Synertek SYM
The 6502.org is a great place for SYM info.
Dwight
_________________________________________________________________
Hotmail? has a new way to see what's up with your friends.
http://windowslive.com/Tutorial/Hotmail/WhatsNew?ocid=TXT_TAGLM_WL_HM_Tutor…
Putting a 1541 on a SYM? Seriously? (I don't
know much about
SYMs...I drooled over them in magazine ads throughout my childhood,
but have never seen one in person.)
-Dave
Yep. Check out:
http://6502.org/users/dallas/
jS
5:34 p.m.
New subject: FA: Synertek SYM
On May 23, 2009, at 11:43 AM, js at cimmeri.com wrote:
Oh My. That is simply amazing.
What do you want for that SYM again? =)
-Dave
--
Dave McGuire
Port Charlotte, FL
Putting a
1541 on a SYM? Seriously? (I don't know much about
SYMs...I drooled over them in magazine ads throughout my
childhood, but have never seen one in person.)
Yep. Check out:
http://6502.org/users/dallas/
25 May
25 May
9:08 p.m.
New subject: FA: Synertek SYM
On Sat, May 23, 2009 at 11:18 AM, js at cimmeri.com <js at cimmeri.com> wrote:
Thanks. ?Btw, adding the RAM, ROM, and a Commodore
C1541 drive are all
trivial. ? I have the RAM for it already.
Adding a C= 1541 is on my list too, but not very close to the top of
the list, admittedly.
-ethan
5697
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16 comments
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participants (6)
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bqt＠softjar.se -
dkelvey＠hotmail.com -
eric＠brouhaha.com -
ethan.dicks＠gmail.com -
js＠cimmeri.com -
mcguire＠neurotica.com