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Hello 請教一下/ ]& O9 z1 j# c' k1 n9 g
" j3 ~! E1 C. X2 M3 k我的 FPGA 是 Virtex5
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. D7 |( q$ M- U* w. h0 }! ~用 Xilinx 的 Core generator 產生一個 DCM_ADV2 M% o+ e- E# X7 K' T6 g
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程式碼如下2 n+ h0 G% N v2 w
) W! X* d) z2 t2 F- a9 R; t+ ?" I+ d0 D我用 ISim 模擬波形是正常的+ p& M/ U b$ H
% W$ K, L \6 K. ]# L, v, E8 S0 g但用 modelsim 卻都是出0
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(CLK0_OUT 和 LOCKED_OUT) (我有compile Xilinx 的 library了)
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想請教是否哪裡設定錯誤
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或者程式有錯% ]4 ]8 j) B; o( p* @
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謝謝各位了~% Y4 [6 f& x0 ?; Y# N3 c, O* h
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module tb;
& o- {. d0 V ?4 @/ u7 u9 |$ h, Y8 freg clk, rst;/ x" R( `0 U( k4 J7 f: S
wire out, out2;# s- W* e, r. W# q0 a
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LED led(.clk(clk), .rst(rst), .out(out), .out2(out2));% e ^4 b% H2 ]1 w7 M0 R+ n4 Z3 F2 o' w8 N
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initial begin, n! t9 L* L6 x8 N& @
clk = 0;$ O$ z/ j) W- H) @3 j; ?
rst = 0;
3 u8 I3 T* i/ c2 R #30000 rst = 1;& P0 ?+ ~. F0 F* b( Y
#10000 rst = 0;
0 T" a9 y; b* ?8 F2 o0 Yend V% E7 p8 C$ i# r+ S& \% B& _6 U
0 X" l5 a8 u" Oalways #5 clk = ~clk;
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3 m4 }- ? S. f# W5 d* h& lendmodule: i+ x$ S" D9 u L, n$ R& C
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module LED(clk, rst, out, out2);
1 T+ ]1 \% R) }- g5 binput clk;6 ?- P1 e0 d: k5 q; K, f
input rst;) M) \8 @1 K* p; Z: M& i: |- v
output out;
8 G- C- X! e, X6 u: u* g. h: V. foutput out2;( |/ Y! ^0 }! G: m. h
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dcmp2d_jitter_v12_1 inst_dcm( P6 V3 b! J S5 w
.CLKIN1_IN(clk),
* Z' r9 V( |& S' T! y" b/ T .RST_IN(rst),
' T- n( W5 F3 n2 t8 T; S4 \: n3 O .CLK0_OUT(out),
. v) T0 l. a+ a. `) \5 o5 L& K$ s6 _ .LOCKED_OUT(out2)); P/ t7 k4 n2 q. P+ v( a
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endmodule |
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