682 Digital Clock!
682 : Digital Clock!
- Author: Alexander Co Abad
- Description: Digital Clock
- GitHub repository
- Open in 3D viewer
- Open in VGA Playground
- Clock: 25175000 Hz
How it works
Digital clock
How to test
CLOCK_FREQ = 10000000
/* * Retro Digital Clock & Date Display
- [0]=12h/24h, [7]=Hold for Date
- Clock Mode: [1,2]=Hour +/-, [3,4]=Min +/-, [5]=Sec Sync
- Date Mode: [1,2]=Month +/-, [3,4]=Day +/-, [5,6]=Year +/- */
External hardware
VGA Display
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | 12h/24h | R1 | |
| 1 | + Hour | G1 | |
| 2 | - Hour | B1 | |
| 3 | + Min | VSync | |
| 4 | - Min | R0 | |
| 5 | Sec sync for clock mode or + Year | G0 | |
| 6 | - Year | B0 | |
| 7 | Hold for Date | HSync |