1. ECEN 248 Lab 2: Logic Minimization and Karnaugh Maps
names
Dept. of Electrical and Computer Engineering

2. Lab 2 in Brief Use logic to perform real tasks
Use K-maps to be efficient
Learn how to use the 7-segment display

3. 7-Segment Display Has 7 inputs, one for each “bar” of the 8
Assert inputs to light up the corresponding bars 3

4. BCD to 7-Segment Driver
Takes BCD digit as input (like 0100 for the number 4) and decodes it into 7 outputs
These 7 outputs are used as inputs for the 7-segment display 4

5. Connecting the Circuit
You will design the Profit Computer
The inputs H, C, S, and I will be turned on and off using DIP switches

6. Designing the Profit Computer
Draw 3 K-maps, one for each output of the profit computer (P0, P1, and P2). Use the conditions in the farm problem!
Pay attention to which is MSB and LSB!
Minimize each K-map to reduce the number of gates used

7. Example K-Map HC SI 00 01 11 10
Fill in with 0’s, 1’s, and X’s.
Then minimize!!

8. Deadlines Today Next Week Work on Lab 2 Lab 2 Post-Lab due
Lab 3 Pre-Lab due at the beginning of class