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module shift_reg(clk,clken,data_in,data_out);
& n F- k \7 @7 I7 X2 Finput clk;
! W H9 q+ q* v; y4 a) sinput clken;, X! c( ]% {" V$ f' N
input [7:0] data_in;
2 a. H& G% w( @output [7:0] data_out;2 U. ^& M* P' Q$ Y
1 v* A: a9 L' o; [+ z! M7 l/*always @(posedge clk)
q5 U; d5 c& n) l2 ?: wbegin
/ d9 q4 ?( l0 o s& ^ data_cnt=data_cnt+8'd1;
! j7 j+ I$ {) E) T' ` end*/
4 i0 }* T. F' A" r1 J ; a4 N: X4 c0 l4 ~' y1 T) L% _$ t
& Y P$ Z! N# T! P! f. Vshift1 u1(
- v8 {3 N1 g' T8 l H .clock(clk),
+ I$ s( j6 z% c2 z0 L .clken(clken),
( t9 F9 y. T+ T' H% e; u. u3 Z .shiftin(data_cnt),
e, f, t( N% P3 v3 } U .shiftout(data_out));
" z0 H# _# g) W1 H! |: V, |( xendmodule+ z/ @- b' m. b! T0 r; O
$ p$ y+ E! x$ y2 V' |& K测试程序:: z' E3 N+ }! s1 H4 Z1 }
initial # j7 D7 _0 ]& e! G" x; ?
begin 5 e+ J& N. l* s+ ^# x; R
clk=0;6 ^& L6 \. N$ i+ p- ]
data_in=8'b0; ( r, X3 e6 l8 V/ F) f( |( r: v
clken=1'b0; p: S- g, W+ h7 {* t- {& v! T- k" G0 J
end
6 b2 B; r% U, {) _$ s
* y' E" T9 A) x; H: W3 Q9 |, aalways #10 clk=~clk;
1 l+ o% Z3 |) \7 [% Z+ t$ _& Cinitial
R4 K, w2 g( j! [( obegin: {2 g: h, W* G; C2 V4 p
#100 clken=1'b1;$ X2 u; S' ~+ H. {' c* c
#200 clken=1'b0;7 L6 `) Z. U2 Q
#100 clken=1'b1;
% `& o8 g$ W6 d$ Q) X: Y; w6 y @ #200 clken=1'b0;
F& K) O( N2 @( j #100 clken=1'b1;
. Z' E$ n- J; M/ w8 e* c' U #200 clken=1'b0;) Y9 ]! Y6 c7 n: u+ d5 D
#100 clken=1'b1;. t7 Y; @% z7 R! r6 i! B
#200 clken=1'b0;) l' }2 Z& e: k
#100 clken=1'b1;: Q* q$ r, K. e+ u* B
#200 clken=1'b0; ; J! b7 _) N! p' q: n
#100 clken=1'b1;
# s" R) ?; a9 m6 K; K. ~ end
+ ^2 n9 b) B7 a1 G9 R' r% U2 l- j; Zalways @(posedge clk)
0 T0 n' `1 o9 I; U5 t/ D9 Sbegin
# y6 J$ X$ }; W3 N4 v- ]3 b if(clken)
8 h, G' j) w: v$ [% K data_in=data_in+1'b1; 9 P" o- H$ r4 q- P) c
end
- Z5 `& m ~. f! M5 W& F. U. T9 Zendmodule; I% c. E+ D1 K7 J* ~
3 l1 f2 J8 g2 d0 i5 Omodelsim-ase编译正确,仿真时出错3 E4 A! I D" c8 s) Z
# ** Error: (vsim-10000) F:/Quartus11.0_exercise/quartus_exercise/shift_reg_ram_based/shift1.v(69): Unresolved defparam reference to 'intended_device_family' in ALTSHIFT_TAPS_component.intended_device_family.
# B# K# x. i5 W* s; x" {# Region: /shift_reg_vlg_tst/i1/u1
& P5 t. N# Q( r' D6 ^7 ?# Error loading design9 t' v' m2 N9 s. G( i- G' p
2 Z( S& G# j7 z' S m; N- |. G
7 w9 z @8 R7 O: @" l* N有哪位大神做过这个库函数的仿真,求解答!!! |
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