Insanity #08 19 января 2001

Железо     Profi

Hard - Profi - Connecting to Profi various peripherals.

          ... Connecting to various peripherals Profi ...



    $% Stingrey


    One of the oldest domestic clones Spectrum-compatible
computers is Profi. Despite its prevalence
(Some Profi is the second largest among
serially produced "large" Spectrum'ov) and quality
technical performance (many of the ideas and development company
CONDOR subsequently copied by other manufacturers) to
number of reasons, was deprived of attention in the Spectrum 
media. 


    At the same time, as practice shows, it is far
sufficiently large number of Profi is operational
state (unlike some other clones), and enjoys
deserved popularity among real spektrumistov.


    There are quite a few users who have purchased Profi away 
with, and without what or documentation, and for this reason, 
experiencing certain difficulties not only in full use

this computer, but when you connect any peripherals. Therefore,
This article is primarily intended for them.


    My Profi 7 years (I have it from November 1993), and he
never gave me reason to be disappointed in him. His
configuration:


    - Profi + ver.4.15, Concurrent BIOS, 512KB RAM, 7 MHz,
standart pallete, three slots ZX-BUS/NEMO-BUS, General 
Sound-512KB, 5'25 "/ 3'5" FDD'S, YM-2149F, PC-keyboard and so 
on ... (Type printer, audio, and mark your TV probably is not so

interesting).


    As you have probably noticed, in my configuration
there is such a wonderful device as - General Sound,
which is in my computer since 1998. Yes, while
the people of the possibility of connecting disskutiroval GS to 
Profi, This device is already present in the configuration of 
my computer. First GS was connected to the system connector 
simply wires and then I build and install the bus driver with

slots under the scheme from the magazine "Spectrum EXPERT".


    What can you say about the connection of different Profi
periphery in general, and GS in particular? ..


    Firstly, we can hardly count on the emergence of new
devices used exclusively for Profi, and therefore
need to focus on St. Petersburg bus standard ZX-BUS, - it
rational (given the number of already issued
devices, and many more ...), and optimally designed
technically (after some effort, the connection of any new
devices will be reduced to a simple sticking them in the slot).


    Now, about possible conflicts with the company's periphery
Profi ... Paradoxically, but in the best position are
owners of older versions of the computer (3rd, 4 th), as they 
have, As a rule, there is no "extra" Peripherals

(COM-port, clock ...). And as for Profi very competently done
decoding ports (standing applaud us CONDOR:), then (under
subject to proper operation of both the computer and peripherals
devices) connect General Sound, or some other
device should not cause any problems.


    In the simplest case (if we restrict the connection,
for example, only GS) all signals are taken from the system 
connector (Raspayku system connectors, see the end of the 
material) with wires (on the Profi though no buffer, but most

signal launched into the system connector, pulled through
resistors to +5 V), with no need to hide the icon with the 
signal IORGE, instead signal OUTIORQ, - and all will be

work! And in the TR-DOS, and CP / M - tested on their own
computer.


    More nuanced approach requires computers 5-x versions, due 
to Pile extra ports (CONDOR Throws rotten eggs,

All we could do a graceful and logical). But on the fifth 
version conflict is only possible when working in the CP / M, 
since all additional ports (except the clock) are available 
only when combination of signals CP / M = 1 (5-th bit port # 
DFFD) and ROM14 = 1 (4 th bit port # 7FFD), then when you work 
in any Sinclair conflicts with GS should not be (in this mode, 
the signal CP / M for default reset to zero). But, 
nevertheless, possible to work with GS, and from CP / M.



    To do this, I think, no need to amend the
computer equipment, and enough to change drivers
conflicting devices. Here you have another advantage
full-fledged operating system. Specific examples of drivers I
yet will not lead, as it was not possible to verify their
in practice (I Profi version 4).


    Based on the vyshenapisannogo obvious that occurred
unsuccessful connection Sound'ov General, there was some
failure of the GS. It is very likely, because, alas, but
Products X-Trade at first was very poor quality
manufacturing. Although maybe it's not their fault, at least
GS now produces a different company - CPG Compex.


    Of course, if you later plan to connect and another
periphery, then it is better to put a buffer on the scheme in 
SE # 2 and bring up the slots all the signals are provided by 
the standard ZX-BUS/NEMO-BUS, although not all of the signals 
used in present, but with an eye to the future ...



             CAUTION! Applies to all versions of Profi!


      If your computer is the processor type: Z-80A,

      Z-80B, or domestic KR1858VM1, in the case

      new devices, with the inclusion TURBO, in

      mode Sinclair, may fail and hang

      computer. This is due to low load

      the ability of the above processors.

Output: either not to include in the Sinclair-TURBO mode (CP / 
M and program does not use ROM - glitches were observed), or

put the processor type - Z84008PEC, Z840010PEC. As shown
experience with the new processors on the computer Profi -
This change does not affect performance
programs. And non-functional in some old programs on
KAY computers with similar processors, apparently,
connected with the circuitry KAY'ev, not processors. Although
fairness, it should be noted that the sequence
B - # ED # 71, the new processors are not interpreted as an OUT
(C), # 00, - OUT (C), # FF;)


                             <...>


               System connector computers Profi

- Numbering of contacts from top to bottom, side A with the 
edge of the board; - L. SOUND & R. SOUND left and right 
channels AY / YM (respectively: 

  Channel - A channel, and - B, C channel is applied to GND);
- Zvezdchkoy (*) are marked by signals that are separated only 
by 

  Cards ver. 5.xx;


         [Contact Us * * Contact * signals signals]


         . 1B. TURBO-. 1A. .

         . 2B. R. SOUND. 2A. L. SOUND.

         . 3B. A15. 3A. A14.

         . 4B. A13. 4A. A12.

         . 5B. D7. 5A. +5 V.

         . 6B. . 6A. .

         . 7B. . 7A. .

         . 8B. D0. 8A. GND.

         . 9B. D1. 9A. GND.


         . 10B. D2. 10A. CLC_AY.

         . 11B. D6. 11A. A0.

         . 12B. D5. 12A. A1.

         . 13B. D3. 13A. A2.

         . 14B. D4. 14A. A3.

         . 15B. INT-. 15A. OUTIORQ-.

         . 16B. NMI-. 16A. GND.

         . 17B. HALT-. 17A. *- 5V.

         . 18B. MREQ-. 18A. .

         . 19B. IORQ-. 19A. .


         . 20B. RD-. 20A. .

         . 21B. WR-. 21A. BUSRQ-.

         . 22B. * 12MHz. 22A. RESET-.

         . 23B. READY-. 23A. A7.

         . 24B. +12 V. 24A. A6.

         . 25B. * TIMER. 25A. A5.

         . 26B. M1-. 26A. A4.

         . 27B. REF. 27A. ROMCS-.

         . 28B. A8. 28A. BUSAK-.

         . 29B. A10. 29A. A9.


         . 30B. CP / M. 30A. A11.

         . 31B. TR-DOS-. 31A. ROM14.

         . 32B. BLK-. 32A. SND_BEEP.


                            *


             Full specification port on your computer

     PROFI (ver 3.xx), PROFI + (ver 4.xx), PROFI2 + (ver 5.xx)



        Main peripherals in a long (logical) addressing

                 for Profi, Profi +, Profi2 +.

- Logical addressing is applicable in all modes

  computers;
- / W - means that the port is available by appointment only;
- / R - means that the port is only available for reading;


                    [CP / M = 0 / 1 'ROM14 = 0 / 1]


   watch "AS" (register number) / w. .......................# 
FFFF 

   Port CMR1 (see description below) / w. ....................# 
DFFD 

   IC AY-3-8910/12, YM-2149F (data )..................# BFFD

   IC AY-3-8910/12, YM-2149F (register number )..........# FFFD

   watch "DS" (details )...................................# 
FFEF 

   free addresses A8-A12 ..............................*****

   Port CMR0 (see description below) / w. ....................# 
7FFD 



     Main periphery in the short (physical) address

                  for Profi, Profi +, Profi2 +.


           (Basic addressing mode Sinclair)


                   [CP / M = 0 'ROM14 = 0]


   port "FF" / r; clock "AS" / w. ............................# 
FF 

   Keyboard D0-D4 (D5) / r; curb D0-D2 / w;

   Read IAHS. D6 / r; record IAHS. D3 / w; beeper D4 / w. .. # 
FE 

   Ports AY / YM; CMR0 ....................................# 
xxFD 

   free ...............................................# FB

   free ...............................................# F7

   watch "DS ".............................................. # 
DF 

   VG93 (TR-DOS = 1), VV55 (TR-DOS = 0)-rus 
...................# 7F 

   VG93 (TR-DOS = 1), VV55 (TR-DOS = 0) port C. 
...............# 5F 

   VG93 (TR-DOS = 1), VV55 (TR-DOS = 0) port B. 
...............# 3F 

   VG93 (TR-DOS = 1), VV55 (TR-DOS = 0)-port A / w; Kempst. / 
R.. # 1F 

   RQ VG93 (TR-DOS = 1); see the port "FF" (TR-DOS = 0) / w. 
.......# FF 

 ! With CP / M = 1 system registry RQ VG93 is available at # BF!

- Assign registers VG93 see in the table below;
- Assign Register RQ VG93 given in a separate table;
- A description of registers AY-3-8910/12, YM-2149F, see the 
documentation 

  on this IC;

<................................................. 
.............> 


           Expanded peripherals in a short address

                     only Profi2 +.

- All ports are selected by a long address, work and

  included a short address (eg ports CMR0, CMR1

  can in this mode is selected and the short and long

  addresses);
- COM1 means that the address refers to the COM-port;


                    [CP / M = 1 'ROM14 = 1]


   watch "AS" - the register number / w. 
.........................# FF 

   Keyboard D0-D4 (D5) / r; curb D0-D2 / w;

   Read IAHS. D6 / r; record IAHS. D3 / w; beeper D4 / w. .. # 
FE 

   registers AY-3-8910/12, YM-2149F ......................# xxFD

   modem "CONDOR" (external address ).........................# 
FB 

   timer VI53 / 2 (external address 
)..........................# F7 

   control register VV51 (COM1 ).........................# F3

   control register VI53 / 1 (COM1 ).......................# EF

   Port IDE / w. ...........................................# EB


   Russian port VV55 
..........................................# E7 

   data register VG93 [# 7F ]..............................# E3

   watch "AS" (non-core e) / w. .......................# DF

   modem "CONDOR" (external address ).........................# 
DB 

   timer VI53 / 2 (external address 
)..........................# D7 

   data register VV51 (COM1 ).............................# D3

   Register Channel 2 VI53 / 2 (COM1 
).........................# CF 

   Port IDE / r. ...........................................# CB

   VV55 port (port C ).....................................# C7


   Register sector VG93 [# 5F ].............................# C3

   watch "DS ".............................................. # 
BF 

   modem "CONDOR" (external address ).........................# 
BB 

   timer VI53 / 2 (external address 
)..........................# B7 

   control register Interrupt Controller (see below) .. # B3

   Register Channel 1 VI53 / 1 (COM1 
).........................# AF 

   Port IDE / w. ...........................................# AB

   VV55 port (port B ).....................................# A7

   register tracks VG93 [# 3F ].............................# A3


   watch "DS" (non-essential address 
)...........................# 9F 

   modem "CONDOR" (external address ).........................# 
9B 

   timer VI53 / 2 (external address 
)..........................# 97 

   similar to # B3 (COM1 )..................................# 93

   VI53 Register Channel 0 / 1 (COM1 
).........................# 8F 

   Port IDE ...............................................# 8B

   VV55 port (port A ).....................................# 87

   instruction register VG93 [# 1F] / w; status register VG93 / 
r. # 83 

   free ...............................................# 7F


   free ...............................................# 7B

   free ...............................................# 77

   free ...............................................# 6F

   free ...............................................# 5F

   System Registry VG93 [# FF ]...........................# 3F


   - Description of IDE ports, see below;

<................................................. 
.............> 


                  CONTROL MEMORY REGISTERS


                The value of discharge port CMR1

                   (# DFFD - CP / M register)



   [D0 segA3]

   [D1 segA4] projected number of memory pages (string)

   [D2 segA5]


   [] The choice of windows projecting segments:

   [D3 SCO] 0 - window number 1 (# C000-# FFFF)

   [] 1 - box # 2 (# 4000 - # 7FFF)


   [D4 WOROM] 1 - disables lock port CMR0 on and off

   [] ROMs, putting in its place of RAM 00 seg


   [] 1 - blocks the operation of the controller of the TR-DOS 
ROM 

   [D5 CP / M] and includes the ports on the access of the RAM 
(ROM14 = 0); 

   [] When ROM14 = 1 - modes. access to expanded. periphery


   [D6 SCR] CPU memory to the place of seg 02, while bits D3 
CMR0 

   [] Should be 1 (# 8000 - # BFFF)


   [D7 80DS] 0 - Spectrum raster (seg 05)

   [] 1 - Profi raster (seg 06 'seg 3A; seg 04' seg 38

<................................................. 
.............> 


                  The value of discharge port CMR0

                (# 7FFD - Sinclair 128 register)


   [D0 segA0]

   [D1 segA1] Number of projected memory segment (column)

   [D2 segA2]


   [] Selection of the raster screen Spectrum:

   [] 0 - seg 05, 1 - seg 07 (80DS = 0)

   [D3 POLEK]

   [] The choice of screen Profi (80DS = 1):

   [] 0 - the screen points seg 04 seg attributes 38;

   [] 1 - the screen points seg 06, attributes seg 3A.


   [] Switch Pages ROM Spectrum (CP / M = 0):

   [D4 ROM14] 0 - Spectrum 128, 1 - Spectrum 48.

   []

   [] Modifier of external devices (CP / M = 1)


   [D5 BLOCK] blocks the port CMR0 (WOROM = 0)


   [D6]

   [D7]



            System Controller drives the register

       (# FF when CP / M = 0 (from ROM); # BF with CP / M = 1 
(from memory)) 


  [D0] Select drive A-D / w

  [D1]


  [D2] 0 - Reset VG93 / w


  [D3] 1 - HRDY; 0 - emulation signal IP / w


  [D4 SIDE] The choice of the disc: 0 - top 1 - Lower / w


  [D5]


  [] The recording density: 0 - MFM / DD; 1 - FM / SD / w

  [D6]

  [] Reading signal DRQ / r


  [D7] Reading signal INTRQ / r


     Control register interrupt controller and komportom

                   (# B3 with CP / M = 1 'ROM14 = 1)


  [INT] Interrupts: 1 - enabled; 0 - forbidden / w

  [D0]

  [RI] Reading lines RING komporta / r


  [D1]

  [D2]

  [D3]

  [D4]

  [D5]

  [D6]


  [D7 DCD] Reading signal komporta DCD / r



                    Ports of the outer periphery


                      Ports IDE controller

                  (Available only when CP / M = 1)


   # 06AB - a system controller registers / w

   # 07EB - instruction register / w

   # 07CB - status register / r

   # 06EB - register numbers head for record

   # 06CB - register numbers head for reading

   # 05EB - Art. byte track number on record

   # 05CB - Art. byte track number read

   # 04EB - ml. byte head number on record


   # 04CB - ml. byte head number to read

   # 03EB - Register sector number to record

   # 03CB - register numbers head for reading

   # 02EB - sector counter to record

   # 02CB - count of sectors to read

   # 01EB - register start precompensation cylinder / w

   # 01CB - error register / r


                      Ports General Sound

   (! With CP / M = 1 'ROM14 = 1 possible conflicts with 
komportom!) 


   # BB - instruction register / w; status register / r

   # B3 - data register / w; register O / r


   More information about ports, GS, see the programming manual.


                     Ports Kempston Mouse


   # FBDF - X-coordinate / r

   # FFDF - Y-coordinate / r

   # FADF - state of the buttons / r