Connecting a 3.5" drive
ZXNet echo conference «real.speccy»
Daniil Bayanow wrote to Waldemar Krigen
about "Connecting a 3.5" drive."
DB>> all this worked for about 3 years until the board was finalized to
DB>> support 4 drives!
DB>> you only need one microcircuit (like ID7) and several
DB>> wiring!
Scheme Is there? I couldn’t find it anywhere.
That’s it!
deadie.horrorsoft.cpu [6912] [hrwI] [ampack] i speccy
WK> Do you have a diagram? I couldn’t find it anywhere.
I figured it out myself! If I’m still at work, I’ll definitely send it!
The point is that the Zonov version deciphers 1 bit of the controller, but you need 2!
I remember exactly under the VG93 there is a mikruha (like IR9) there is one pin dangling in
the air - this is the second bit! The first bit goes to the decoder, which needs to be
cut off!
The ubiquitous Daniil...
DB> I thought about it myself! If I’m still at work, I’ll definitely send it!
Some people “knock out” circuit diagrams for entire computers =)
DB> The point is that the Zonov version deciphers 1 bit of the controller, but you need 2!
DB> I remember exactly under the VG93 there is a mikruha (like IR9) there is one pin dangling in the
TM9
DB> air - this is the second bit! The first bit goes to the decoder, which
DB> needs to be cut off!
why cut it off?
the outputs from this microchip (LH12) are cut off, which go to the drive connector - 10th
and 12th, 555ID10 is installed, signals from TM9 go to the 15th and 14th legs, the 13th and 12th legs
connect to the /MOTOR signal (16th pin on the drive connector), from pins 1,2,3
and 4 (ID10) drive selection signals are removed and go respectively to pins 10, 12,
14 and 6 of the connector.
pokedova Daniil
jtn\\4d
WK> Do you have a diagram? I couldn’t find it anywhere.
as promised - diagram:
DEVELOPMENT OF THE VG93 CONTROLLER ON A SCORPION ZS 256 COMPUTER
(only for the OLD YELLOW BOARD) for working with 4 disk drives.
(c)daniel/Binary Dimension Association
D65 ID7
3 +------+ 2 2 +------+ 15
submit D1 ---| |---------| |------- DS0 to pin 10 drive port
| TM9 | 5 1 | | 14
| |---------| |------- DS1 to pin 12 drive port
| | 6 | | 13
| | +------| |------- DS2 on pin 14 drive port
+------+ | 4 | | 12
| +--| |------- DS3 to pin 6 drive port
| |5 | | 16
from 2 legs D68 -------+ |--| |--+
|8 | | |
|--| | |
| +------+ |
| |
GND +5v
comments to the diagram:
Cut the track from D68,3 leg (former DS0)
Cut the track from D68,11 leg (former DS1)
Apply D1 signal to the 3rd leg D65
DS0-DS3 signals are drive sampling signals, they need to be fed to the connector to
to which the cable is connected from disk drives (according to the diagramScorpion):
DS0-10 connector contact (drive A)
DS1-12 (drive B)
DS2-14 (drive C)
DS3-6 (drive D)
connect 2nd leg ID7 with 2nd leg D65
connect 1st leg ID7 with 5th leg D65
connect 6th leg ID7 with 2nd or 13th leg D68
7,9,10,11 legs ID7 can be grounded (they are not used)
apply ground to legs 4,5,8 ID7
apply +5 volts to leg 16 ID7
trigger D65 is located under KR1818VG93
Tested on microcircuit 533ID7 (planar), but it is possible use
K555ID7 or K1533ID7.
Don’t forget about jumpers and resistor matrices on the drives!
DB>> which needs to be cut off!
VK> why cut it off?
VK> the outputs from this microchip (LH12) are cut off, which go to the connector
VK> of the drive - 10th and 12th, install 555ID10, on the 15th and 14th legs there are signals
VK> from TM9, 13th and The 12th legs are connected to the /MOTOR signal (16th pin on the
VK> connector of the drive), from pins 1,2,3 and 4 (ID10) the
VK> drive selection signals are taken and go respectively to the 10, 12, 14 and 6 pins of the
VK> connector.
I’ve already drawn the diagram, see everything in detail there!
18 Nov 02 22:27, Daniil Bayanov wrote to Waldemar Krigen:
DB> Tested on the 533ID7 (planar) chip, but you can use
DB> K555ID7 or K1533ID7.
555 and 1533 topics are not allowed more!
DB> Don’t forget about jumpers and resistor matrices on the drives!
Yes, yes... even with one resistor matrix 1533 may not work...
In the next letter ID10, also with an open collector, is specially designed for
such purposes. And ID7 is logic, it needs to include something like LP9 as an output
.
The teapot will assemble your circuit and then dance around the drive with a tambourine.
DB> I thought about it myself! If I’m still at work, I’ll definitely
DB> send it! The point is that the Zonov version deciphers 1
DB> bit of the controller, but 2 are needed! I remember exactly that under the VG93 there is a
DB> mikruha (like IR9) there is one pin dangling in the
DB> air - this is the second bit! The first bit goes to the
DB> decoder, which needs to be cut off!
IR9 is not available in Scorpa at all. Probably TM9?
I’m not particularly good at hardware, you don’t paint screenshots. :)))
I'll wait for the diagram. Or draw here...
┌─────────┐
D0───4┤D0 TM9 Q0├5───┐
──3┤D1 Q1├2── │
D2───6┤D2 Q2├7───│───/CLR
D3──11┤D3 Q3├10──│───HRDY ┌───┐
D4──13┤D4 Q4├12──│────────────11┤ ├10──/SIDE
D6──14┤D5 Q5├15──│───/DDEW └───┘
/RES───1┤/R │ │
/WRDOSFF───9┤C │ │ ┌───┐ ┌───┐
└─────────┘ ├──4┤ & ├6─┬──1┤ & ├3───/DS0
├──5┤ │ │ 2┤ │
│ └───┘ │ └───┘
│ ├────────────HLD
│ │ ┌───┐
│ └─13┤ & ├11──/DS1
└────────────12┤ │
This is (sort of) a decoder. └───┘
┌─────────┐
/IORQCE───4┤/E0 ID7 0├15─
/DSDOS───5┤/E1 1├14──|<──┬───────/CSDD
A0───6┤/E2 2├13─ │
│ 3├12──────│───────/WRDOSFF
A1───1┤X0 4├11─ │
A7───2┤X1 5├10──|<──┴──███──> +5V
/WR───3┤X2 6├9──
│ 7├7───────────────AKEY
└─────────┘
Вездесущий Daniil...
...
19 Nov 02 14:55, Waldemar Krigen -> Daniil Bayanov:
_·····------====== Monitor glass cutter ======------······_
Press RESET immediately, Alexander !
07 Mar 00 22:30, Alexander Vlasov wrote to All:
AV> -+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+-
AV> People, we desperately need a specific connection diagram for drives “C” and
AV> "D" to Scorpion. Can anyone share?, huh? PLS, really necessary.
AV> ZSV/MIU/CTL
AV> -+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+---
CONNECTING 4 DISK DRIVES TO SCORPION'AM !
On your machine, you probably
already felt the need to connect additional
drives C: and D:, not provided for by the design. Using the instructions below, with minimal material costs, you can carry out
simple modifications to your computer. To
this you will need any decoder chip with inverse outputs and an open
collector, for example, ID5 or ID10. It is desirable that these microcircuits be from the K155,
KR531 or KR1531 series. The use of other
series, such as K555, KR1533, is less
preferable due to their comparatively
low load capacity.
First of all, cuttracks going
to pins 10 and 12 of the drive connector. In this case, pay attention to the numbering of the contacts: on one side there are even numbers, and on the other - odd ones, and connect input 3 of the D65 microcircuit (K555TM9) to the 15
output of the D20 processor (Z-80).
Below are two instructions for wiring the decoder chip. When connecting
additional drives, you can be guided by any of them, depending
on the selected element base.
╔════════╗
║KR155ID5║
╚════════ў
1. Solder pins 2,3 and 8 to the ground
of the computer, and pin 16 to +5 volts.
2. At input 3, apply a signal from pin 2 of D65
(K555TM9), and to input 13 - a signal from output 5 D65 (K555TM9). Connect input 1 to pin 2 of D68 (K155LA13). yes:
╔════════════════════ ════════════════════╗
║07 m/s output - 10 pin connector (DS0)║
║06 m/s output - 12 pin connector (DS1)║
║05 m/s output - 14 pin connector (DS2)║
║04 m/s output - 06 pin connector (DS3)║
╚════════════════ ════════════════════════ў
╔═════════╗
║KR155ID10║
╚═════════ў
1. Connect pins 8 and 12 to the common"ground"
of the computer, and pin 16 to +5 volts.
2. At input 14, apply a signal from pin 2 of D65
(K555TM9), and to input 15 - a signal from pin
5 of D65 (K555TM9). Connect input 13 to
2 pin D68 (K155LA13).
3. Outputs 5,6,7 and 9 (these are DS0, DS1, DS2 and
DS3, respectively) connect to the corresponding
contacts of the disk-
connector yes:
╔════════════════════ ════════════════════╗
║05 m/s output - 10 pin connector (DS0)║
║06 m/s output - 12 pin connector (DS1)║
║07 m/s output - 14 pin connector (DS2)║
║09 m/s output - 06 pin connector (DS3)║
╚══════════════ ══════════════════════════ ў
─══════════════─────── ─────══════════════─
... ·-=[ZX]=-·
--- Generator of Evil
+ Origin: Stop talking nonsense to the masses! (2:5030/827.2)
_······------====== Monitor glass cutter ======------······_
WBR, Jason.
/*e-mail: jason2000(scary dog)yandex.ru ICQ: 62235830*/
/np:/ *silence*
19 Nov 02 14:55, Waldemar Krigen wrote to Daniil Bayanov:
WK> IR9 is not available in Scorpio at all. Probably TM9?
WK> I’m not particularly good at hardware, you don’t paint screenshots. :)))
WK> I'll wait for the diagram. Or draw here...
Take the reference book, find 155ID10 there and don’t fool yourself or others.
You can’t do this on ID7. If you don’t have ID10, then you can assemble a decoder using the 155LA13 chip available
on
the board and an LH1 type inverter (you need to install it).
If you can’t, then there’s no point in grabbing a soldering iron at all - you’ll only break the spec
.
See how ID10 turns on in yesterday’s letter from Vasily Klimova.
DB>> disk drives!
KF> Yes, yes... even with one resistor matrix 1533 may
KF> not work...
What should I do with them?
I have them installed on both 5-s (Epson SD-600).
KF> The teapot will assemble your circuit later with a tambourine around the
KF> disk drive dance.
There is no tambourine at home. There are only pots. :)
That seems to be it. Packeda!
deadie.horrorsoft.cpu [real] [6912] [hrwI] [ampack] i zx
WK> What should I do with them?
WK> I have them installed on both 5s (Epson SD-600).
However, all this kitchen creativity with a blunt hot object
usually ends in the breakdown of the Spectrum. Nemo was right...
KF> Take the reference book, find 155ID10 there and don’t fool
KF> neither yourself nor others.
I asked a very specific question in a very specific echo.
Those who knew the “correct letter” gave very specific answers.
A big THANK YOU to them for this! (hi, jason! hi, daniil!)
I received some “muddy” replies from you (why?).
I’m understand that for the “not real” Spec this problem does not
exist...
..skip..
KF> If you can’t, then there’s no point in grabbing a soldering iron at all
KF> - you’ll only break the spec.
Alas, It's not my first. So I have “experience.”
Glory to Mednonogov (:), it’s already been the 12th year that I’ve been communicating with
Spek. I know how to hold a soldering iron, don't worry, you don't have to be harder to do this.
KF> Nevertheless, all this kitchen creativity with a blunt
KF> hot object usually ends in a breakdown of the Spectrum.
KF> Nemo was right...
Don’t be sarcastic, but answer like a human being.
WK> I asked a very specific question in a very specific echo.
WK> Those who knew the “correct letter” gave very specific answers.
WK> A big THANK YOU to them for this! (hi, jason! hi, daniil!)
WK> From you I received some kind of “muddy” replies (why?).
WK> I’m understand that for the “not real” Spek this trouble does not
WK> exist...
So it’s him who always reads his correspondence on ZXNet, your ears wither :)
Bye, Waldemar!
WBR, Alexander...
... e-mail: c...@cmail.info.kuzbass.net
On your machine, you probably
already felt the need to connect additional drives C: and D:, not provided for by the design. Using the instructions below, with minimal material costs, you can carry out
simple modifications to your computer. To
this you will need any decoder chip with inverse outputs and an open
collector, for example, ID5 or ID10. It is desirable that these microcircuits be from the K155,
KR531 or KR1531 series. The use of other
series, such as K555, KR1533, is less
preferable due to their comparatively
low load capacity.
WK> Don't be sarcastic, but answer like a human being.
Remove the matrix from the panel from one of the drives (the one on the connector that is
closer to the center of the cable). If it doesn't work, try to start the drives one by one; if it still doesn't work, repair the controller... (or drives)
The protoss have escaped. The zerg dug in. It's time for me to call it a day. Ivan.
- Divorce the scheme, big and small... [Sprinter] Sprinter-II [Forth-CPU]
... ivan...@mail.ru * http://winglion.spb.ru * http://www.petersplus.ru