|
4#
樓主 |
發表於 2008-5-14 22:45:18
|
只看該作者
感謝囉!!後來我改成這樣
2 v6 I; h5 y, D, ^entity sedg7 is
$ t5 `: }# [$ s$ \0 w. ` Port ( Enable : in STD_LOGIC;
( @: Z: b. x4 \/ X. p8 [ X : in STD_LOGIC_VECTOR (3 downto 0);9 K6 c! ?% {4 h( h1 m' N
a,b,c,d,e,f,g,p : out STD_LOGIC;
/ S$ j( j% J5 J S SEL : OUT STD_LOGIC_VECTOR (5 DOWNTO 0));& u" L: D) `; `' U* n9 u
* s$ J/ b" |8 L
; ?/ j& Z3 T7 Y! c" q
) R9 v& r, i& c8 @$ k7 i, x+ |
end sedg7;8 w. k7 D) y z& }3 H
2 [* [7 a$ S* [9 K. Y
architecture Behavioral of sedg7 is
* z, \* z8 z/ `SIGNAL Y : STD_LOGIC_VECTOR (7 downto 0);7 P, P. k! v8 j# Y. [+ B
begin+ ~& t1 s0 b- @$ Q0 T9 G& y% v( Y
Y<= "11111111" WHEN Enable= '1' ELSE
3 p0 l# L. @0 \( i6 @4 A, ^ o "00000011" WHEN X="0000" ELSE
7 V8 c% K" c, G3 I" L "10011111" WHEN X="0001" ELSE
9 w* l1 `) A; {$ P: O7 i "00100101" WHEN X="0010" ELSE1 T# l0 P. a% j& r
"00001101" WHEN X="0011" ELSE' X3 J; k: W* o9 _; s( @" A
"10011001" WHEN X="0100" ELSE
8 w \& g7 ^8 @8 k, O "01001001" WHEN X="0101" ELSE
( N8 f2 ^! Q4 Q, U" ] "01000001" WHEN X="0110" ELSE, l1 \1 x4 g7 Y* B- w S3 A
"00011011" WHEN X="0111" ELSE
) A' |0 |* y4 n/ C "00000001" WHEN X="1000" ELSE& B# P, j( ~0 T; q- j
"00001001" WHEN X="1001" ELSE
& e- f/ Y* H3 K6 _# z8 a% u4 e/ x "00010001" WHEN X="1010" ELSE" U( v* m( L; [8 P0 y+ u, B g9 I) `
"11000001" WHEN X="1011" ELSE
/ r7 M9 X: m, `% F3 T h7 M "01100011" WHEN X="1100" ELSE
" i! M5 M- n8 D' g1 F0 r "10000101" WHEN X="1101" ELSE2 {. A8 P4 ?% z6 F5 _1 F, Z, M
"01100001" WHEN X="1110" ELSE
8 d( m8 Z+ y" h4 C+ x' C3 p$ Y "01110001" ;
! ~5 U! M* O: x3 e7 _ c a<= Y(7);; {9 S J: v+ a) u4 A
b<= Y(6);
: f# T! R" X, z9 P) b0 D. \: j c<= Y(5);/ Z+ S- o5 h! G# _, X
d<= Y(4);
5 j! [% }; V# x; R0 I0 h e<= Y(3);% M d9 y" N+ g2 I* \
f<= Y(2);
* }+ b( j f7 n, ?' T g<= Y(1);
! J& x1 j& q; G W5 q) @: g% k p<= Y(0);; N- A9 I+ k, u) T' p
SEL<= "111110" ;
* @: Y! y) @ ?2 O$ S aend Behavioral; |
|