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MCE2VGA

CGA/EGA/Hercules/MDA to VGA converter with scanline emulator

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€ 59,00
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This FPGA project PCB is based on Luis Antoniosi's open source project, with permission :
https://sites.google.com/site/tandycocoloco/mda-cga-ega-to-vga

The serdaco version consists of a main board + FPGA daughterboard, and is powered through an usb connector.
This offers you a ready to run solution for connecting your CGA/EGA/Hercules or MDA videocard to a VGA monitor.

DIP Switches

 DIP  CLOSED  OPEN
 DIP 1  MDA  CGA/EGA
 DIP 2  HERCULES/16MHZ in MDA, SCANLINES in CGA  NONE
 DIP 3 MONOCHROME EMULATION  RGB 
 DIP 4  GREEN MONOCHROME AMBER MONOCHROME

Dip1 is the closest to the RGBI connector
Dip2 has no effect in EGA inputs
Dip4 only applies when Monochrome Emulation is on

To use a Hercules video card, close DIP1 and DIP2. For a MDA just close DIP1 and leave DIP2 open
The CGA/EGA screen is automatically switched when DIP1 is open.
Scanlines only affect CGA screens and/or EGA low-res.
The UP, DOWN, LEFT, and RIGHT buttons allow to position the image, and to navigate the onscreen menu.

The reset button on the Core4 FPGA toggles CGA composite emulation (16 colors).
In composite mode, changing HPOS changes the color palette.

Output Resolutions
Mode Resolution
MDA   720x400@70Hz
Hercules     720x400@70Hz
CGA and EGA Lo-Res 720x480@60Hz
EGA Hi-Res 640x350@70Hz
      
All these resolutions are VGA standard and should be supported for any monitor.
Some LCD monitors will display 720x480@60Hz downscaled to 640x480@60Hz, so we may see scaled pixels. You can try adjusting the CLOCK/PHASE on your monitor settings if they are available. In this case try to leave as little as borders possible.


High quality 3d printed enclosure : it takes 4.5 hours to print one complete enclosure set !