100 My First TinyTapeout
100 : My First TinyTapeout
- Author: Case Kirk
- Description: This is an 8:3 encoder with a bit to flip default low/high output
- GitHub repository
- View in Wokwi
- Clock: 1 Hz
How it works
This tile design is an active high 7:3 encoder, capable of inverting its output. Reference both the gate diagram and logic table below.
<p align="left"> <img src="7-3 Encoder.png" width="400"/> </p>
| IN 0 | IN 1 | IN 2 | IN 3 | IN 4 | IN 5 | IN 6 | OUT 0 | OUT 1 | OUT 3 |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 |
| 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
| 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 |
| 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 |
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
How to test
Provide 7 togglable signals to the input lines (0/3.3V) and connect the first 3 output lines to LEDs. When you toggle each line, you should see the LED change and show its binary representation.
External hardware
TTBoard and LED's should do just fine.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | IN0 | OUT0 | |
| 1 | IN1 | OUT1 | |
| 2 | IN2 | OUT2 | |
| 3 | IN3 | OUT3 | |
| 4 | IN4 | OUT4 | |
| 5 | IN5 | ||
| 6 | IN6 | ||
| 7 | IN7 |