hw:lab:pld:rozwiazania_7seg
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Table of Contents
Rozwiazanie 7 seg
Przyjęta konwencja segmentów (ogólnie obowiązująca na świecie)
segment a
Segment a (o1) powinien byc zapalony dla cyfr : 0,2,3,5,6,7,8,9
| i3 i2 \ i1 i0 | 00 | 01 | 11 | 10 |
|---|---|---|---|---|
| 00 | 1 (0) | 0 (1) | 1 (3) | 1 (2) |
| 01 | 0 (4) | 1 (5) | 1 (7) | 1 (6) |
| 11 | x (C) | x (D) | x (F) | x (E) |
| 10 | 1 (8) | 1 (9) | x (B) | x (A) |
o1 = i3 + i1 + !i3*!i2*!i0 + i0*!i1 *i2*!i3
implmentacja
| i0 | !i0 | i1 | !i1 | i2 | !i2 | i3 | !i3 | i4 | !i4 | i5 | !i5 | i6 | !i6 | i7 | !i7 | o0 | !o0 | o1 | !o1 | o2 | !o2 | o3 | !o3 | o4 | !o4 | o5 | !o5 | o6 | !o6 | o7 | !o7 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| and0 | x | |||||||||||||||||||||||||||||||
| and1 | x | |||||||||||||||||||||||||||||||
| and2 | x | x | x | |||||||||||||||||||||||||||||
| and3 | x | x | x | x | ||||||||||||||||||||||||||||
| and4 | ||||||||||||||||||||||||||||||||
| and5 | ||||||||||||||||||||||||||||||||
| and6 | ||||||||||||||||||||||||||||||||
| and7 |
segment b
Segment b (o2) powinien byc zapalony dla cyfr : 0,1,2,3,4,7,8,9
| i3 i2 \ i1 i0 | 00 | 01 | 11 | 10 |
|---|---|---|---|---|
| 00 | 1 (0) | 0 (1) | 1 (3) | 1 (2) |
| 01 | 0 (4) | 1 (5) | 1 (7) | 1 (6) |
| 11 | x (C) | x (D) | x (F) | x (E) |
| 10 | 1 (8) | 1 (9) | x (B) | x (A) |
o1 = i3 + i1 + !i3*!i2*!i0 + i0*!i1 *i2*!i3
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