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CH-CPLD 補充教材
九、實驗項目：數碼轉換器
例 1：二進制轉換成葛雷碼
如下表所示。
B3 B2 B1 B0 G3 G2 G1 G0
00000000
00010001
00100011
00110010
01000110
01010111
01100101
01110100
10001100
10011101
10101111
10111110
11001010
11011011
11101001
11111000
∑G3 = (8,9,10,11,12,13,14,15) = B3
∑G2 = (4,5,6,7,8,9,10,11) = B3 ⊕ B2
∑G1 = (2,3,4,5,10,11,12,13) = B2 ⊕ B1
∑G0 = (1,2,5,6,9,10,13,14) = B1 ⊕ B0
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