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不好意思
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想請問這晶片中的程式碼內容( t& L# h5 Z z. d0 z6 ?7 ?. Z+ r# t
% S/ l: g5 T$ Y7 k9 C' X5 _說明他有什麼功用# m. M, d7 Y) v& T% M/ j1 C
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module keytr (
$ L: w2 R# ? x& Pkey,2 e: M: L6 u" b) J# C
ON,( h' r" b) f. `" }& x4 M, t2 @" l
clock,
6 N9 {9 Y% |! u8 B( h/ BKEYON,
" R9 |# K0 \4 Q3 S8 N5 Ecounter
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inputkey;
: H! w5 V- ]7 ~4 M9 poutputON;
" d, ]1 r6 D$ s0 o/ b+ F* d* f+ joutput KEYON;# j% R# D/ ?8 y3 U6 \
inputclock;
T+ c/ @7 A7 Z0 u9 h/ I$ zoutput [9:0]counter;
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reg [9:0]counter;# ~9 E% B I+ t1 ]
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reg KEYON;: x0 i* ^3 j+ X, l, c
wire ON=((counter[`OUT_BIT]==1) && (key==0))?0:1;
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0 [5 B2 H5 I* s! i* B' r' aalways @(negedge ON or posedge clock) begin2 Z) n% W) S1 h- t- Z
if (!ON)2 Y4 w( Y: k2 c
counter=0;
* u# A4 F$ j; Eelseif (counter[`OUT_BIT]==0)
$ }6 Q8 Y. i- ccounter=counter+1;% u% ~$ Q: y/ d/ \' D; J5 t F1 n
end
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always @(posedge clock) begin, m$ [0 r+ [0 u c* p. Q
if ((counter>=1) && (counter <5))
% X3 |" M3 c9 |. ^" a" zKEYON=0; Q. }5 M0 C7 r+ i# E! {8 I6 z$ b! @
else
) i3 M) ~! J1 lKEYON=1;5 u* U( c2 W1 F9 X
end
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" r& p. R" C% x4 @3 Z$ Uendmodule |
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