Open source Credit:
All credit for original idea, hardware design, and firmware go toUrban JonssonSupported Computer Models:
This video port adapter is designed for use with Atari ST/STE computer systems.
Replaces custom Atari ST video cable with common VGA cable and 3.5mm audio cable.This adapter converts from the Atari 13 Pin DIN connector to standard VGA pinout.
The video output is not processed to modify the scan rate of the video signal.
The video output remains at 15Khz.
A scan converter may be required to convert the video signal into a standard VGA signal which is support by almost all current monitors and TVs.
The relative RGB levels can be adjusted to improve video quality.
·Serial output for monitoring or debug (TTL level output)
o Saves current setting each time setting is changed
o No need to hold button for 2 seconds
Plug Switch into Atari ST/STE
Plug VGA cable into Switch
Use RGB POTS to adjust color balance
Plug 3.5mm audio cable into headphone port
Used large POT to adjust audio level
Press button above VGA port to change between hi-res mono to color mode
After pressing button Atari ST will reboot
Video mode will be toggled upon reboot
Active video mode will be retained between rebootsLimitations: