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Hello 請教一下
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我的 FPGA 是 Virtex5
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, a% m$ ^2 p9 b2 U! Z. W$ _- N6 x用 Xilinx 的 Core generator 產生一個 DCM_ADV
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2 T c+ ?$ n0 s6 T5 z% L程式碼如下
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0 ~$ h7 m. E4 ?- x我用 ISim 模擬波形是正常的; U1 h* m- C6 H& l/ j
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但用 modelsim 卻都是出0
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(CLK0_OUT 和 LOCKED_OUT) (我有compile Xilinx 的 library了)1 i1 D+ K) ~) L }( H9 z4 a9 m8 B
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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
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謝謝各位了~3 O: I- D5 G" ?4 e
- J% q# g8 ?6 B0 I5 F* v8 Rmodule tb; w/ e. l' A9 b' ?* w1 c; T4 u
reg clk, rst;
2 K( _5 a/ J( L1 ^2 r3 h* Iwire out, out2;
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- K( r3 ]+ G2 x% T/ LLED led(.clk(clk), .rst(rst), .out(out), .out2(out2));/ |' M" k$ _1 H8 b! M7 A& E/ i
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initial begin# E+ c# ^+ k& C& N" ?
clk = 0;/ b! s6 G7 q1 U/ i' W/ i& L9 X
rst = 0;6 Y9 s" L- r- m8 ?0 x! ^; e9 c
#30000 rst = 1;' }, H6 `* w1 X# F
#10000 rst = 0; T8 x( `' i/ f9 |
end4 j* M. c( Y+ _# S
# E% v1 f H, d( calways #5 clk = ~clk;( b7 B+ n3 c* H2 ^" Y3 ?) x7 f9 t
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y, [5 z* ^& {4 `1 f7 tmodule LED(clk, rst, out, out2);3 z! r: r. R0 f& n6 n6 X; T
input clk;
4 i# s, V# b0 i# `input rst;
" d* i, x: M f3 O! ooutput out;7 M7 Z6 p' A* K' D8 h
output out2;
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7 m9 u5 H9 ?) bdcmp2d_jitter_v12_1 inst_dcm(
- @7 r' u% q7 W' s .CLKIN1_IN(clk),
+ z! h/ q9 s ~! ] .RST_IN(rst),0 U1 x0 j8 N, }/ X
.CLK0_OUT(out),
! Q$ c' [2 Z8 ?3 i c9 e6 s/ j .LOCKED_OUT(out2));; s# M* R! O3 @$ @6 }
9 t5 _. i) M1 L# n" K- h' d. _endmodule |
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