Hardware - Expanding the memory of the ZS Scorrion 256 computer.

   
    
    
    
                                          
(c) Timon & EraserAREAsoft               
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 Computer memory expansion        
        ZS Scorpion 256 up to 1 MB.          
                                          
    Despite the fact that many views
were skeptical (not excluding some
since then I myself) have expanded on the proposal
memoryScorpion,I'm almost there
I have been the owner of a monster for three months
name ZS-Scorpion 1024 Turbo+.And in
I'm currently typing this text into
iS-DOS by loading a copy of the entire floppy disk onto
RAM DISK.                                 
                                          
 Therefore, today we offer
owners of the above-mentioned computer scheme
memory expansion up to 1megabyte. Moreover
This scheme is quite cheap and easy to implement
implementation.                               
 The main detail of this entire scheme is 30
pin SIMM with a capacity of 1 MB. It costs such a fi-
robuha within fifty rubles (especially
especially if you consider that for PC owners
This amount of memory didn’t fit anywhere :)).
If you don't want to buy it, find it
those somewhere are three rubles or four and stand-
thread  SIMM  from it. There you can also get
connector for SIMM,otherwise solder a bunch
wires directly to SIMM it's okay
dreary.                                 
   The remaining parts are also not de-
scarce or very expensive.  They can
tear out, for example, from an old board from Le-
Ningrad".                                
                                          
    So, the list of necessary parts:     
    ┌--------------------┬---------┐      
    │ SIMM 1Мь, 30 pin │ 1 │      
    ├----------┼---------┤      
    │ TM2 │ 1 │      
    │ KP12 or KP2 │ 1 │      
    │ KP11 or KP16 │ 1 │      
    │ IR22 │ 1 │└--------------------┴---------┘      
 Mikruhi should be series 1533, but you can
install the 555th series as well.                  
                                          
   So, if you have found everything you need, then
It’s time to start assembling our circuit.   
                                          
   First, solderIR22as indicated
on the diagram. To check the correctness you can
connect the board in place and turn on the power
tion.  If there are no glitches, that’s it
nice.   Otherwise, check the correctness
connections.                              
                                          
   After you connect the IR'ku,
before will remove all chips RU7. Or,
if you have a powerful power supply, you can
just block them.  For this you need
find the 15th output of the RU'shka to which
the signal goes /CAS first. It is necessary
cut the track (signal /CAS) from this no-
gi, and put earth on your foot. Because 15th you-
the waters of all RU`sheks are connected, then they are all
the airways are blocked.                        
                                          
   Next is soldered SIMM intocompliance
with a diagram.  Although for starters you can connect
read it as 256 KB, then you can
will check if the connection is correct.
To do this, the 18th pin of SIMM(A9) must be
nahytb to the ground. And again, when turned on,
there should be no glitches in the power supply,
Otherwise, look for where you messed up.               
   If all previous options passed without
problems, then you can collect the remaining pieces
circuit juice, which is
signal conditioner MA9 and a piece of port
#1FFD. Namely 6 and 7 bits of this port.   
                                          
───────────────────────── ────────────────────────────────────── 
                                          
             DDЧЧ' ┌── b:D15 DDЧ5'                         
          ┌──┬──┬──┐ │ ┌──┬──┬──┐                    
          ┤А1│MS│Y1├ │ 1:DDЧ5 1┤ЭХ│MS│ │                    
          ┤B1│ │ │ │ ├──┤ │ │                    
          ├──┤ │ │ │ A9 b┤X1│ │ │                    
          ┤A2│ │Y2├ │ 7:DD19 5┤X2│ │ X├7┐ MA9              
          ┤B2│ │ │ │┌──────────4┤X3│ │ │ │                  
          ├──┤ │ │││      Gnd 3┤X4│  │  │ │                  
┌───────11┤А3│  │Y3├9┘│           ├──┤  │  │ │                  
│   Gnd 10┤B3│  │  │  │ 14:DDЧ5 14┤S0│  ├──┤ │                  
│         ├──┤  │  │  │  2:DDЧ5  2┤S1│  │  │ │                  
│┌──────14┤А4│  │Y4├12┘           ├──┤  │  │ │                  
││  Gnd 13┤B4│  │  │              ┤Y1│  │  │ │                  
││        ├──┤  │  │              ┤Y2│  │  │ │                  
││1:DDЧЧ 1┤S │  │  │              ┤Y3│  │ Y├ │                  
││  Gnd 15┤Е0│  │  │              ┤Y4│  │  │ │                  
││        └──┴──┴──┘              ├──┤  │  │ │                  
││           КП1б                 ┤ЕУ│  │  │ │                  
│└───────────────────────┐        └──┴──┴──┘ │       SIMM 1Мь   
└───────────────────────┐│           КП12    │        30 pin    
               DD9'     ││              ┌────┘     ┌──┬───────┐ 
            ┌──┬──┬──┐  ││              │       +5V│ 1│  Vcc  │ 
       +5V 4┤S │  │Q1├5─┘│              │      /CAS│ 2│ /CAS  │ 
            ├──┤  │  │   │              │  ╓───────┤ 3│ D0    │ 
        Dб 2┤D1│  │  │   │              │  ║ 5:DD28│ 4│  А0   │ 
    9:DDЧ7 3┤C │  │  │   │              │  ║ б:DD28│ 5│  А1   │ 
            ├──┤  │__│   │              │  ║───────┤ б│ D1    │ 
    1:DDЧ7 1┤R │  │Q1│   │              │  ║ 7:DD28│ 7│  А2   │ 
            ├──┼──┼──┤   ││ ║12:DD28│ 8│ A3 │ 
      +5V 10┤S │ │Q2├9──┘ │ ║ Gnd│ 9│ Gnd │ 
 ├──┤ │ │ │ ║───────┤10│ D2 │ 
       D7 12┤D2│ │ │ │ ║11:DD28│11│ A4 │ 
   9:DDČ7 11┤C │ │ │ │ ║10:DD28│12│ A5 │ 
            ├──┤ │__│ │ ║───────┤13│ D3 │ 
   1:DDČ7 13┤R │ │Q2│ │ ║13:DD28│14│ Ab │ 
            └──┴──┴──┘ │ ║ 9:DD28│15│ A7 │ 
                TM2 │ ║────────┤1b│ D4 │ 
                                        │ ╨ 1:DD28│17│ A8 │ 
                                        └───────────┤18│ A9 │ 
                                           ╔ nothing│19│ A10 │ 
                                           ║ 3:DD28│21│ /we │ 
                                           ║ Gnd│22│ Gnd │ 
                                           ║───────┤23│ Db │ 
                        D0-D7 on the 14th leg ║ nothing│24│ NC │ 
                        DD21-DD28 corresponding   ║────────┤25│ D7 │ 
                        ═══════════════════╝ nothing│2b│Par0ut │ 
                                             4:DD28│27│ /RAS │ 
───────────────────────────────────┐ nothing│28│/ParCAS│ 
                                   │ nothing│29│ParIn │ 
             DDЗ8'  │ +5V│30│ Vcc │ 
 ┌──┬──┬──┐  │ └──┴───────┘ 
 2:DDЗ8 3┤D0│RG│Q0├2 3:DDЗ8  └─────────────────────────── 
 5:DDЗ8 4┤D1│ │Q1├5 4:DDЗ8                                  
 b:DDЗ8 7┤D2│ │Q2├b 7:DDЗ8 NP'ka is connected like this
 9:DDЗ8 8┤D3│ │Q3├9 8:DDЗ8 so that inputs DDЗ8'
12:DDЗ8 13┤D4│ │Q4├12 13:DDЗ8 were connected to the outputs of DDЗ8,
15:DDЗ8 14┤D5│ │Q5├15 14:DDЗ8 and corresponding.  outputs DDЗ8'
1b:DDЗ8 17┤Db│ │Qб├1b 17:DDЗ8 with DDЗ8 inputs.             
19:DDЗ8 18┤D7│ │Q7├19 18:DDЗ8                                  
          ├──┤ │ │                                            
    /WE 1┤E0│ │ │                                            
11:DDЗ8 11┤RE│ │ │                                            
          └──┴──┴──┘                                            
             NP22                                               
                                          
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  In this diagram, the IC numbers of which are
stroke,correspond to chip numbers
on the diagram there are scorpions that should be soldered
get rid of these little things.                         
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Notes on the diagram:                       
 - break the wire coming from the 7th leg
    DD19 on the 13th legDD18;               
 - on the 13th leg DD18 apply "ground";     
 - break the wire (signal A9) going
    on the 6th leg DD15;                     
 - continue to act in accordance with
    scheme;                               
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 ATTENTION!                             
 Don't forget to connect the power to the microcircuits:
IR22:                                     
   - 10th pin - “ground”;                
   - 20th pin - +5V.                   
KP12 and KP11:                              
   - 8th pin - “ground”;                
   - 16th pin - +5V.                    
TM2:                                      
   - 7th pin - “ground”;                
 - 14th pin- +5V.                    
                                          
 Because  Scorpov's board has a very dense
new wiring, then make sure that
When soldering, adjacent terminals were not connected
microcircuits                                
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 Additional features.       
If on the 3rd and 11th legs of the microcircuit TM2
solder the wire with9:DDBlack,instead of 9:DDCH7.And
also disable port #1FFD (diagram from the magazine
ZX-Format #01), then you will have almost
PENTAGON, with memory expansion via 6.7
port bit #7FFD.  Basically disabling
#1ffd and is not necessary at all. Unless in prog-
frameworks which, having found Scorp's memory
do not monitor other ports. The easiest way
do this - install a regular toggle switch
(or switch P2K  - as you like -
xia) and click it if necessary. This 
I made myself a lotion not so long ago, and
I was pleased with her. Now in those programs that
which are notunderstand the Scorpov meter, I use it
Pentagon half-meter.                 
------------------------------------------------------- 
 So, you have a megabyte of memory.      
    What's next!? And then here's what.        
   If you constantly sit in ALASM, then
look in the app, there you will find two
drivers for this cool ASMA, one for
512 kB.The second one is 1024 kB,but for it
connections must be made
major modification ofAlasm(see section
THINGS).                                  
    If you can't stand Alasm,
but you respect XAS,then you can work in it,
by first switching the expansion port
to #7ffd.  Then all your texts will be
saved on any reset like y
usersAlasm'a.                    
                                          
   For those who work with texts in
The application contains a RAM disk driver for
1024 KB for the iS-DOS system. Having installed it,
you can copy the entire floppy disk to the RAM disk
and work with all conveniences. From the table
driver pages excluded page 8,
so with a “warm” reset of the frames, the disk remains
not in place.                           
  In addition, such an extension standard
memory understands word processor Micro
Editor v3.40 and there you will have three buffers
for text instead of two.                   
                                          
   Well, for those who have only one disco
vert needs copiers. And there are some.
Expansion via 6.7 bit port #1FFD lower-
toss:                                     
Consul Commander v3.33 Бу Phantom Family.
 Real Commander 1.x by REAL SOFTWARE.     
Editor v3.40 and there you will have three buffers
for text instead of two.                   
                                          
   Well, for those who have only one disco
vert needs copiers. And there are some.
Expansion via 6.7 bit port #1FFD lower-
toss:                                     
Consul Commander v3.33 Бу Phantom Family.
 Real Commander 1.x by REAL SOFTWARE.     
 XL-COPY Бу XL-Design                     
VTC v1.0Бу Binary Dimension             
 and many other programs.               
                                          
  Well, that’s basically all I had for you
report. Collect the diagram and drive to your
pleasure on a meter scorpion.          
                                          
 ZS Scorpion 1024 - Rulezzz!!!       
                                          
04/16/2000 ERASER