624130 9.06.01.
Dear Nemo!
I am sending you the diagram and user manual.
user of the "Magic 05" computer for writing
printer driver. By the way, the diagram can
useful N......, because the computer was developed
nerd in Moscow and at one time even advertising
was broadcast on CT (advertising Magik and Companion in
91st year according to the 1st program). So
the computer should be common.
This diagram could be useful to you too,
because I think you developed a secam encoder
for KAYA. I use this computer with
1993, he has no problems in
docking with TVs, and he has never
did not fail due to factory assembly
(there were problems with the disk controller Kus-
container production).
9.06.2001 N.
624130 07.23.02.
Dear N!
1). I did not develop the SECAM encoder.
2). Did you have any problems with the disk drive?
due to "handicraft production", and due to
the reason that your computer, like any
the "board" layout machine is CONCEPTUALLY not
designed for expansion. What is written
in the "User's Guide" - this is not more
less than a layer of printing ink.
3). Read the "Manual": "Opportunity
connections to the drive system unit
on magnetic tape (tape recorder), digital tape,
RGB monitor, joysticks (<...>), printer
(CENTRONICS interface), as well asadapters
additional external devices (LCD,
local networks, etc.) through the system
"EXPANSION" connector". Well, where in your
Centronics computer? Where do you see him?
I'm not even talking about the DB-25S type connector, ON-
WHOSE PERSONALITY IS PRESCRIBED (I.E. OBLIGATIONS-
FUCK!) STANDARD. It looks like you have
printed panels. Who will solder the ca-
Belle? Can you find the appropriate connection?
thread? Can you do it all?
Standards are adopted so that
you could SIMPLY connect the connectors (here
the word SIMPLY is appropriate). Your problem
computer (And yours, accordingly, I think
This is no longer a manufacturer's problem. Even eu-
whether he didn’t go bankrupt, then years ago
There is no point in making claims. Deadline
operation of this type of equipment - eight
years Your computer was developed in 91
du, sold in February 93. Ie. he's already half-
years ago it should have been in the trash. If
Do you really want to do Spect-
rum, then you need to buy a new computer
pewter, and not try to do the dead thing
parks. The most you can do is
is to operate it in those modes in
which he is still working on. Forget about race
expansion. It was smooth on paper (in the Handbook)
Vodka"), but they forgot about the ravines), including
that this is not Centronics even by subset
wow, it's not there even at the signal level.
What kind of RDY signal is this?
Reading "Note"(page 32 "Manual"
TV MAGIC-05"): (*) "Port address for issuing
chi bytes on the OFDH printer. To install
transmission strobe to the printer must be
write to the OFCH port (based on the scheme
we "transmit strobe" STR/set
to log "1" - (c) Nemo). Strobe (STR/ - (c)
Nemo) is reset (to log. "0", again,
based on the scheme - (c) Nemo) when writing to
printer port (this is the same OFDH, because it
named differently in one paragraph, this is not
It should be noted - (c) Nemo). Readiness
(there is no such signal in Centronics, but there is
BUSY (Busy) in IRPR-M (complete analogue of Cent-
rions'a) it is called "ZAN" (in domestic
no specification)) is read through the digit
D7 of the Kempston joystick port at -
1FH (this same line on the principle
scheme and is named - (c) Nemo)".
So what do we have?
3.1. RDCH signal ("Ready"). Judging by
name, this may be related to IRPR
(and not to IRPR-M, - Centronics). But not
has. To ensure exchange under IRPR not-
THREE control signals are required, as a mini-
mum. Otherwise - individual fit
printer using capacitors and resistors
tors (as you understand, this is what we do -
We won’t be with you, because... it will cost you
in THOUSAND RUBLES). So let's forget about
IRPR. In the specification on the line (signals
Centrions'a STR) ("STROBE") must form
occur INDEPENDENT of other signals, - in
including data. And it's doneunasked for
ta. In order for the data to be installed,
some time is necessary - otherwise,
ter will skip "garbage" and not the required byte
for printing. And the strobe (STR1) MUST: Firstly
out, set (go from "1" to
"0", and not vice versa, as in "Magic'e 05") in
active "0" state. Secondly, do
this (go from "1" to "0") LATER, mi-
minimum 0.5 μs (and in the OST substandard
107.460.831.003-87, allowing length of in-
interface cable up to 20 m, - unlike
standard 3 m, WHOLE 5.0 µs). Thirdly,
withdraw (i.e. go into passive
"1" state - transition from "0" to log.
"1") - again must be done ahead of time, i.e. for 0.5
µs before the data bus state changes.
“Simultaneous” change is IMPOSSIBLE.
“If possible at the same time” can only be
like N........., but he already has “wings from-
grew up." By the way, I wonder if he designed
tuned this computer (manufacturer city
- Yekaterinburg)? In fact there will be logical
racing, i.e. if the strobe “reaches” the
ter earlier than necessary, then it will sign up PRE-
PREVIOUS BYTE, if "as possible at the same time"
timely", then MU- will be written (printed)
SOR, because some data lines will make it
transfer to a new state, and some -
no. The desired case is the transition AFTER
establishing data will be no more than
royal Moreover, this probability will depend
network from: temperature, altitude
floor,orientation according to the cardinal directions (has
referring to the Earth's magnetic field), etc. Te-
put a spoonful of honey on the ointment. Some-
printers - will nevertheless work
That is, if under your curve the company
Computer write a crooked program. (These are NOT
WHICH examples will require different -
strictly for yourself, driver programs). When-
than exactly SOME, because if the printer
"latches" the data along the signal transition
STR/ from log "0" to log. "1", then it is always
will work in the "if possible" mode
simultaneously", i.e. catch glitches (chimeras),
as the great comrade N...... bequeathed to us
..... But even if the printer “latches”
data when moving STR/ from log. "1" in
log. "0" does not guarantee anything.
For the simple reason that the interface is
works in NON-STANDARD MODE. Don't react
does the printer recognize that the passive level
signal STR/ (STROBE/, or CPT/ - by
STANDARD NAME OF SIGNALS) is
there is a log. "0", not log. "1" - it can
be classified as an error by the printer
interface) of the computer? Won't he expose
mistake? And if the printer “checks” the quality
in the communication line by comparing data with
transition STR/ at the moments of transition from "0" to
"1" and back? This is redundant checking, and
I don't know if it is used in printers.
But it is possible, because THIS IS NOT CONTRADICTED
TO STANDARD: IN STANDARD Centronics is given -
tions are TRUE as intransition STROBE/ (at
You - STR/) FROM "0" TO "1", AND VICE BACK.
Who knows what else? Now let's summarize.
My actions? Since I received the money, then
I must be responsible for my work. May I
do this? No, and REGARDLESS of
me to the circumstances. What should I do?
bark? Right. return the money - that's what I
I do. Time spent studying
"circuitry features" of your
We will write down the computer at a loss. It's MORE YOU-
WORTH better than getting involved in an epic with a connection
connecting the printer to a crooked computer when
using the program curve using the user-
maker, about whom even the ability is unknown
Can it be soldered (DV-25S). And the reason is still the same
same - you DO NOT have CENTRIONS - understand this!
It is impossible to paint a fence that is not
exists, even for money. Although for VERY
BIG MONEY is possible. This is exactly what is found in
mind when I say that support is old
technology is FANTASTICALLY ROAD, - and there is no point
has. Maybe buy a new computer first?
ter? And if necessary, attach red-
ku to the fence, not the fence to the paint (there is
referring to the layer of printing ink in the "Hand"
Vodka"). And don’t blame the “handicraft”
production", or the reluctance of specialists
Help you. Pointless work is humiliating.
Find some pioneer who doesn't
against a month to dig deeper into your “Ma-
gic'e 05" (at my mother's expense). Months of work
specialist is a value of the order of TEN-
KOVTHOUSAND rubles. Probably, according to the above-
for other reasons in the IS-DOS library and not
It turns out there are drivers for your computer. I
I didn’t want to make fun of him when I asked
sewed technical documentation for your
Computer. After reading the previous letter
there is a suspicion that either you are not doing something
understood in the "Manual", or learned
"recipe" for connecting in networks. There are passages
type (*) - not uncommon. They have everything there
“just” - like “just took it and...” sub-
disconnected the wiring, slapped a command, etc.
The matter turned out to be much more serious.
(c) Nemo
P.S. I am returning the documentation. One more thing
final clarification. 30 rub. - in the price list
IS-DOS is the price of DISTRIBUTION of drivers, -
no more. Typically, the driver detects
is in the library. Well, if he’s not there,
then we write for a SYMBOLIC AMOUNT. Really
this work costs from five hundred to a thousand rubles -
lei (if there is a STANDARD). Then these drivers
faith can be sold on stream. For "Ma-
gic'a 05" this is IMPOSSIBLE - there will be scandals,
The driver works for one, but for the other
no. And it will be explained by (users)
because we are “handicraftsmen” and do not know how to work.
For what.
P.S. Now a comment for "Open Pi-
seven". You should not think that problems with
old equipment and its support have -
only on the Spectrum platform, they are definitely
also available on the IBM platform. At the beginning
90sIBM Corporation supplied
market (and, accordingly, to Russia) RAW
ideologically - conceptually - circuit design -
technically and technologically solutions. Claims
Unfortunately, it is impossible to present, because
the IBM platform does not have the concept of salt-
gift responsibility. Those. corporation
IBM can always refer to the fact that
the equipment was supplied by LEFT companies. Inter-
Therefore, ALL companies in the IBM platform are MUTUAL
DEPENDENT among themselves and from IBM - even more so.
The same printer interface in the peripheral
COM/PRT RAW boards. To this
You can make sure:
1. Take several boards with Centronics
"various" manufacturers - and look-
see how the dampers are designed in circuit design
connecting chains to the cable. Whatever the fee, then
OWN, home-made damping. What do they call-
It turns out who is going to the forest, who is getting firewood. And this
This means, from a production point of view,
what is WORKING, i.e. reliable and optimal
SOLUTION NOT FOUND.
Go to any repair shop
pussies and ask there how much
reliable PRT boards. You will learn a lot of interesting things -
a lot - but you won’t understand everything, because
some of the arguments will be obscene.
Read Niklaus Wirth's article "From dis-
development of programming languages for design
computer development" (In the magazine "Micro-
Processor tools and systems" No. 4 for
1989). You should not think that it was written
what was new then was “morally obsolete.” problem
justwritten off under the article "moral character"
roaring", WITHOUT solving it. Reprint in pre-
the previous issue of "O.P."
Further, the problem is not limited to
COM/PRT boards. Therefore, IBN owners
PCs reading this are recommended
bury yourself in pieces of pussy shit and
don't drink. The very fact that you are a chi-
melt, is possible only thanks to the fact that
DOMESTIC USERS PAY DOMESTIC
TO VIEW PRODUCERS - otherwise it wouldn’t have happened
learned some interesting details about
"Kiselny rivers with milky banks and
a thick, thick layer of chocolate." How do you say
It’s hard, it doesn’t smell like its own shit, that’s bad,
that many people now think is imported shit
by blood. And therefore to remain silent. Receive
or for free - now I’ll work it off -
we owe a favor to the good Uncle Sam, the silent one
support. Many did not even have time to find out
how crooked the cars were they purchased.
Really. for two years (term "moral-
obsolescence") is impossible even to reliably
wonder whether the declared
in the "Manuals" you can somehow
implement. It is interesting to know, for example, and
soon this question will be very relevant, -
what is the physical service life of the
IBM PC computers? Are there any guarantees?
given, then for how long? At eight, fifteen
for twenty years, or for two years? It is clear that
if you ask such a question in pisyukans-
any company, they will look at you like you’re an idiot
ota. ButDon't be embarrassed, be persistent.
Chivy. You will learn a lot of interesting things. Pisyukan-
We can also recommend that you contact
on issues of support “morally”
roaring technology to the editor-in-chief of "Com-
Pewters" (number 16 of April 21, 1997,
page 95, second paragraph from the top at the far left
howl column). He, however, promised that "...
there will be software companies right there that
will start serving them..." But even the software
true support - not to mention the hardware,
- impossible. I'd try it on my own
experience, maybe something smarter... DON'T WRITE
SAL. And so, I picked my nose and wrote,
- I picked it again, - and wrote again -
sal... But many people believe this. Effect
printing ink.
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