City #04 19 марта 1999

Железо

Iron - connect to Spektpumu ... CD-ROM.

--------------------------------------------------
                PLANET SHELEZYAKA
--------------------------------------------------

  Today, in this section, I want to publish an article
ALEX'96, was sent to me by Pavel Petukhov (VEL) of
PROXIMA HACKERS TEAM (Kovrov), which concerns
connection to the Spectrum ... CD-ROM.

  Unfortunately, the ending of the article was a bit spoiled, 
but the remaining material all the same gives some "Food for 
thought in this matter. 

  On my own I just want to add that the software that makes 
working out a program SDPLAYER you can purchase by calling 
newspaper. 

  And now the article ...



  (C) ALEX'96



          CONNECTIONS CD-ROM to Spectrum



  HI!!! Well, some are probably shouting "Hurrah, we
We play games on CD !!!", so, those who so
scream can shut the mouth and read what I write.

  CD I hooked up only at the level of music, ie, programs can 
not read it and it seems that this is SPECCY impossible. 
Although if I knew raspayku IDE interface, then who knows ... 
CD is connected by two bits through the input / output port 
VV55. From the CD you want to display the 2 wires from the 
buttons and EJECT PLAY. I bought, restore or maintain CD-ROM 
(two speeds) for 200 thousand rubles. Firm producer - AZTECH. CD

has two buttons above.

  Buttons are pressed when one of the contacts filed a logical 
ZERO. If the button is pressed, Contact her at 1. Need to 
solder two wires to thereby contacts, and their other ends of 
the hook the last two bits 31 (# 1F) port, a joystick

they are not used. Now you need to install
VV55 chip on PROFI I write to port 127
number 128. All bits of Port ustanovyatsya 31 to 0. Now we need 
his last two bits set to 1, otherwise the CD will not respond 
to button presses. 

   Install the software you need to do, and even CD
will not have time to understand what the buttons momentarily 
exchanged into 0. 

  If VV55 not install and the CD is connected, it
works as usual. Just conclusions are VV55
in the Z state.

  Why all this should be: Vobschem by company
can be implemented play a given track,
VIEW MODE (a quick overview of the disk) and mode plays the 
chosen order Mouzon, is also possible the database on CD. 

  Now on CD.

  If you want to use CD PLAYER, you will need a CD ROM 
required, with at least two buttons, it is advisable to take 
this the same as mine. Here is his appearance:




                      compact

                        Disk


                                  PLAY / NEXT EJECT