組合電路設計問題。LED照明組合電路
A
____
| |
F | | B
| |
____
| G |
E | | C
| |
____
D
Suppose this is a LED display. It would take input of 4 bit
(0000)-(1111) and display the Hex of it. For example
if (1100) come in it would display C by turning on AFED and turning off BCG.
If (1010) comes in it would display A by turning on ABCEFG
and turn off D.
These display will all be Capital letters so there is no visual
difference between 0 and D and 8 and B.
Develop a truth table and an optimized expression using Karnaugh Maps.
我不確定如何開始。對於真值表,我會使用(w,x,y,z)作爲輸入變量還是僅僅使用ABCDEFG變量,因爲它是打開和關閉的變量?
input (1010)-->A--> ABCEFG~D (~ stand for NOT)
input (1011)-->B--> ABCDEFG
input (1100)-->C--> ADEF~B~C~G
所以我會爲所有的十六進制0-F做那麼會給我最小。然後使用卡諾圖來優化它?任何幫助將不勝感激!