Installing the world’s worst video card
Ben Eater・2 minutes read
A video card outputs low-resolution images with limited colors, while a 6502 computer aims to connect for enhanced graphics, requiring changes in ROM to RAM for control. Glue logic and specific pins facilitate the connection between the video card and computer, creating intriguing screen displays with the potential for further development.
Insights
- The video card outputs a VGA signal with a resolution of 100x75 pixels and 64 colors, displaying a single hard-coded image, with the possibility of expanding graphics capabilities by connecting it to a 6502 microprocessor computer.
- Implementing dual-ported RAM, buffers like the 74HCT245, and transceivers are crucial for enabling communication between the video card and CPU, allowing for seamless control and access to RAM, ROM, and I/O, ultimately enhancing the computer's graphics processing capabilities.
Get key ideas from YouTube videos. It’s free
Recent questions
How does the video card generate images?
By using binary counters for pixel positioning.