ZX Time #04 17 ноября 2001

Железо

zhelezyaki - the usual scheme of expanding graphs to Spectrum mode hardware multikolora 1bayt = 1tsvet.

Zhelezyaki


                     Alexander Pehimenko


  I am spektrumistom with experience. While at home I have the 
"Pentium-2, but Spectrum I'm not giving up and not going to 
throw. I want to give to those who can handle a soldering iron 
circuit expansion of the usual graphics Spectrum to

mode hardware multikolora
1bayt = 1tsvet. Scheme oprobyvalas the "Leningrad-48, 128," 
must also go to "KAY-48 128", "Scorpio-256, 1024.



  It all started when I read in
one of the electronic journals for
(Miracle), that the regime is multikolor
three cutting off the board and with the help of
one m / s KP11. I tried to search for
magazines, but apart from anything similar words
I found none. Searched schemes on the Internet -
also found nothing.


  For information spektrumistov. Huge
collection of electronic journals, programs, games, music, 
etc., as well as links to other sites may Spectrum visit 
zx.da.ru. Scheme of Leningrad - site http: \ www.chat.ru \ zrm 
\. 


  Then I took the scheme of "Leningrad", well understand it and 
developed one of the variants of this scheme with three devaysa

cutting off the board + a KP11. What
today and write.


       Here is the signals for the scheme.
H1-switching to access memory and CPT

         Video. (0-CPT ,1-video)

H2 bytes of RAM sample of pixels and bytes

    Attributes. (1-pixels ,0-attributes)


  According to Scheme 1 signal H1 is the alternate address to 
the RAM and CPT video. In a series of handling a video for the 
RAM at H1 = 1 is done Sequential sampling of

RAM bytes pixels from the address 16384 (6144
bytes) and the attribute byte at address 22528
(768 bytes).


  According to Scheme 2 mode multikolor
includes bit 4-port EFF7 = 1 and made Sequential sampling bytes 
pixels from the address 16384 (6144 bytes) and byte attributes 
from the address 24576 (6144 bytes). This is verified by 
comparing the addresses CPT and Video. In principle, the regime 
multikolor can stick on any free port, but I recommend that, for

This standard port - EFF7.


  The board made three multicolumn: Cut the track coming to 
1D19, 10D14.3, 6D17. The connection is made according to the 
scheme 2.



   Also recommend to install on your
PC mode the black level (if
it's not), otherwise the screen will be bad
transition of colors.


    If you do something is not clear please contact ...

        e-mail: palex@langoo.com


             or contact:

          Pehimenko Alexander

                 47,

         ul.Chkalova, Rudny,

               Kazakhstan,

                 459120



        Will exchange programs and

           schemes for iron



                 - - -


  Schemes are in the annex to the newspaper
pcx-format (pisyukovom). You can view the program or Brujeria 
(s) to print the program PCX-Print (by Excess). The file names 
corresponding to: shema1.pcx and shema2.pcx. 


                 *