Files | uPD7220 Retro Graphics Card (and VGA hack)

video_timing_calculator.py

Python3 program to create valid VGA video timings for the uPD7220. Use it to generate values to plug into videoconf.h

plain - 5.11 kB - 04/04/2019 at 06:05

uPD7220_card_ctrl.ino

An arduino sketch used to control my graphics card. Use it as example code, a test program, or as a base for your own driver!

ino - 3.77 kB - 04/04/2019 at 06:04

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videoconf.h

Video configuration settings for the uPD7220. Goes with uPD7220_card_ctrl.ino

plain - 1.45 kB - 04/04/2019 at 06:04

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graphics_card_design.zip

This design partially works. The output from the shift registers should be q3, but q0 is used instead (a mistake). Before using either be prepated to modify the PCB or fix the design.

x-zip-compressed - 797.96 kB - 04/04/2019 at 05:30

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uPD7220-uPD7220A_User_Manual_Dec85.pdf

In case this disappears from the rest of the Internet

Adobe Portable Document Format - 3.54 MB - 04/04/2019 at 01:40

Preview

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video_timing_calculator.py Python3 program to create valid VGA video timings for the uPD7220. Use it to generate values to plug into videoconf.h plain - 5.11 kB - 04/04/2019 at 06:05		Download
uPD7220_card_ctrl.ino An arduino sketch used to control my graphics card. Use it as example code, a test program, or as a base for your own driver! ino - 3.77 kB - 04/04/2019 at 06:04		Download
videoconf.h Video configuration settings for the uPD7220. Goes with uPD7220_card_ctrl.ino plain - 1.45 kB - 04/04/2019 at 06:04		Download
graphics_card_design.zip This design partially works. The output from the shift registers should be q3, but q0 is used instead (a mistake). Before using either be prepated to modify the PCB or fix the design. x-zip-compressed - 797.96 kB - 04/04/2019 at 05:30		Download
uPD7220-uPD7220A_User_Manual_Dec85.pdf In case this disappears from the rest of the Internet Adobe Portable Document Format - 3.54 MB - 04/04/2019 at 01:40	Preview	Download