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#1 16-08-2012 17:33:14
- cdesp
- Moderator
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(Hover for details) - Location: : Kilkis, Macedonia, Greece
- Registered: 27-07-2008
- Posts: 86
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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
- Moderator
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(Hover for details) - Location: : Kilkis, Macedonia, Greece
- Registered: 27-07-2008
- Posts: 86
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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.
This image has been resized, click here to view the full-sized image.
This image has been resized, click here to view the full-sized image.
#3 15-02-2014 16:18:09
- cdesp
- Moderator
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(Hover for details) - Location: : Kilkis, Macedonia, Greece
- Registered: 27-07-2008
- Posts: 86
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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