197 move VGA square
197 : move VGA square
- Author: Tobias Greiser
- Description: Move the square as you like
- GitHub repository
- Open in 3D viewer
- Clock: 25000000 Hz
How it works
Iagine sitting in front of a computer screen, moving the mouse. That's exactly what I tried to replicate, except that you can change the cursor size when you have a hard time finding it. The cursor is supposed to be white on a gray background.
Inputs 0 to 5 are used:
- 0: Move the cursor to the left
- 1: Move the cursor to the right
- 2: Move the cursor to the top
- 3: Move the cursor to the bottom
- 4: Increase cursor size
- 5: Decrease cursor size
How to test
Connect a VGA monitor. Set the inputs according to your preference.
External hardware
Tiny VGA Pmod and switches.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | Move left | R1 | |
| 1 | Move right | G1 | |
| 2 | Move up | B1 | |
| 3 | Move down | VSync | |
| 4 | Decrease square size | R0 | |
| 5 | Increase square size | G0 | |
| 6 | B0 | ||
| 7 | HSync |