TTL-7447-like implementation for logisim
The 7-segment display driver is an implementation of or BCD (Binary Coded Decimal) to 7-segment display decoder and driver.
It allows you to send binary numbers to a 7 segment display rather than implementing every character yourself.
Logisim is a circuit simulator. More info: http://www.cburch.com/logisim/
First of all you will need to download the this project (link), or clone.
Then create a new circuit pressing "CTRL + N".
See:
Right click at your circuit folder, go to "Load Library" > "Logisim Library" then find the "7-segment-display-drive.circ" file
After loading the library, you need to add the component to your circuit.
It's easy to see down in the list, the component:
Make your circuit, and remember the display pins are:
So, after connecting the Driver to the display, your circuit should look like this:
Inside the examples folder, you can see some circuits:
Here you can see the Truth table, that I used to make the circuit:
| Hex | D | C | B | A | a | b | c | d | e | f | g | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | |
| 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | |
| 2 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | |
| 3 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | |
| 4 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | |
| 5 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | |
| 6 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | |
| 7 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | |
| 8 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 9 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | |
| A | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | |
| B | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | |
| C | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | |
| D | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | |
| E | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | |
| F | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 |