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4#
樓主 |
發表於 2008-5-14 22:45:18
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只看該作者
感謝囉!!後來我改成這樣
( s6 B+ k6 U0 \4 \entity sedg7 is
, y: f) f0 r5 n4 e" W1 B Port ( Enable : in STD_LOGIC;! `: O W1 \7 ]
X : in STD_LOGIC_VECTOR (3 downto 0);
/ n8 P F+ f- K3 |6 h |$ a a,b,c,d,e,f,g,p : out STD_LOGIC;
* r$ W1 E8 x5 E SEL : OUT STD_LOGIC_VECTOR (5 DOWNTO 0));! J% }/ ^$ P# Y* v7 q- \1 A
/ a/ y' [+ a$ E' q* Z
$ V; R( h- a ]+ s' R8 t; ~' F/ b
8 u( Q8 T0 M' o1 M+ M4 ^( b$ R5 B/ M
end sedg7;1 [; P5 K, g+ q' u! f7 \ W
, q7 s! a& k' U. P/ h
architecture Behavioral of sedg7 is, y0 |( F% a x2 T
SIGNAL Y : STD_LOGIC_VECTOR (7 downto 0);$ V: `3 L. |8 M! A2 r3 e+ S, a& B
begin
0 S5 d8 p4 x) P* T( A Y<= "11111111" WHEN Enable= '1' ELSE6 A9 u& H% [, c: P
"00000011" WHEN X="0000" ELSE
) W8 z# ?& l; J5 [# f3 t "10011111" WHEN X="0001" ELSE u; @( q) |9 [! s4 w: d8 u, V7 ?
"00100101" WHEN X="0010" ELSE; `4 b1 c7 O& {7 J) y
"00001101" WHEN X="0011" ELSE4 o* j; Z7 d( t+ o) p
"10011001" WHEN X="0100" ELSE
+ E5 r2 q1 @" t. L1 m4 e "01001001" WHEN X="0101" ELSE* h& A5 \3 B9 }, i, \3 ?' o
"01000001" WHEN X="0110" ELSE7 D& m9 m& C q+ @3 T5 x( K
"00011011" WHEN X="0111" ELSE3 s- R/ @5 q$ |" j
"00000001" WHEN X="1000" ELSE; b0 Q, _: {9 ~$ X/ w8 O
"00001001" WHEN X="1001" ELSE
8 W2 \: t3 s Y6 g4 M+ D x "00010001" WHEN X="1010" ELSE
& F7 ?! X3 H: q0 t: S- r: P% d "11000001" WHEN X="1011" ELSE$ c9 X% F+ R; y8 r3 e4 ?& I7 H
"01100011" WHEN X="1100" ELSE+ u. W; J; @+ E' ]
"10000101" WHEN X="1101" ELSE
% _+ ?- U$ ?4 x0 D, m "01100001" WHEN X="1110" ELSE
2 o3 W- S6 B7 _/ M "01110001" ;
% h5 j' `1 O' J+ ?; \1 o a<= Y(7);
" y+ E7 Q8 ?; o: ^ b<= Y(6);
) C. C# f3 j T c<= Y(5);
% o9 h) Y, z% S* g: i# O" }6 i) u d<= Y(4);
" w& `5 @( a# T' I% s+ k& h e<= Y(3);
. I& u9 @0 y/ M9 P \ f<= Y(2);/ H0 Q. g3 s2 Y1 Y* ?- A+ `! i
g<= Y(1);
3 D9 b u1 g: D p<= Y(0); t1 H6 l3 n$ D& S$ F
SEL<= "111110" ;
9 [$ |% k1 V, d4 k* bend Behavioral; |
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