Hy,
I want to use a 7-segment display to display only 0,1, and 2. So I think that as I only want to display 3 numbers I only need 2 input bits.
The truth table is :
I do karnaugh to obtain the function for each segment and then I wire, but 0,1,2 doesn’t display.
But when I use 4 bits input and do karnaugh to display from 0 to 9 it works.
So my question is , it is necessary to do karnaugh on 4 bits and for the numbers from 0 to 9 to only display 0,1,2 ?
I want to use a 7-segment display to display only 0,1, and 2. So I think that as I only want to display 3 numbers I only need 2 input bits.
The truth table is :
I do karnaugh to obtain the function for each segment and then I wire, but 0,1,2 doesn’t display.
But when I use 4 bits input and do karnaugh to display from 0 to 9 it works.
So my question is , it is necessary to do karnaugh on 4 bits and for the numbers from 0 to 9 to only display 0,1,2 ?