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#1 16-08-2012 17:33:14

cdesp
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Location:  : Kilkis, Macedonia, Greece
Registered: 27-07-2008
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Progress

Here is a picture of the composite signal so far.
There is a lot to be done .


http://www.newbrainemu.eu/component/opt … ail/id,91/

 

#2 13-01-2014 20:33:12

cdesp
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Re: Progress

My newest pcb is a Xilinx 95108 board to coonect the CPLD with the rest of the system.
This PCB will implement the main Screen logic including character generation.

http://www.newbrainemu.eu/components/com_agora/img/members/6/IMG-20140112-172926.jpg

This image has been resized, click here to view the full-sized image.



http://www.newbrainemu.eu/components/com_agora/img/members/6/IMG-20140112-172902.jpg

This image has been resized, click here to view the full-sized image.

 

#3 15-02-2014 16:18:09

cdesp
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Location:  : Kilkis, Macedonia, Greece
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Re: Progress

Screen is working ok.
Character generation is supported with the help og a 28c64 EEPROM.
The EEPROM was burned with data available on the net Char eprom which is 2560 bytes long and has only the 8*10 characters not the 8x8.
So we are short of this dump if anyone can help.

The screen supports

    Full screen reverse field

    80/40 characters per line

    Text and attached graphics streams


will be implemented
    narrow screen

 


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