905 TT09Ball GDS Art
905 : TT09Ball GDS Art
- Author: Rebecca G. Bettencourt
- Description: THE STRONGEST ROM and GDS art
- GitHub repository
- Open in 3D viewer
- Clock: 0 Hz
How it works
An octal counter is connected to THE STRONGEST 8-byte ROM, which is connected to the dedicated output, which is connected to the seven-segment display, to provide a carrier for THE STRONGEST GDS art.
You can bypass the counter by setting ui_in[3] high and putting the address
on ui_in[2:0].
How to test
- Set
ui_in[3]low. - Set reset low and pulse clk.
- Set reset high and pulse clk to change the LED display.
- You should see, in order:
9blankCIГПOblank. - Set
ui_in[3]high. - Set
ui_in[2:0]to the values 0 through 7. - You should see, in order:
9blankCIГПOblank.
External hardware
Seven-segment LED display and/or chip decapping tools, depending on how destructive you want to be.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | A0 | a | D0 |
| 1 | A1 | b | D1 |
| 2 | A2 | c | D2 |
| 3 | address mode | d | D3 |
| 4 | e | D4 | |
| 5 | f | D5 | |
| 6 | g | D6 | |
| 7 | dp | D7 |