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module shift_reg(clk,clken,data_in,data_out);
0 Z1 z$ P# b- A. t- J+ h% ]input clk;
% F/ A% D- |" |$ e( Ginput clken;- g* s4 j1 A B: Y4 u* s
input [7:0] data_in;
$ ?3 A# n5 A- L* C4 ]% voutput [7:0] data_out;# y' T$ M3 e- F
8 ?( |) ~# l- b5 t* l+ ?5 A
/*always @(posedge clk)
; {0 B4 w u3 a: O- mbegin
, p1 ~4 ]$ U- ]5 ^& X% G data_cnt=data_cnt+8'd1;
: ~9 q, I7 l& `3 S end*/
. x" h# B, f: y2 m; H' G9 d 2 H, L" r5 @& l' p' t. i
- l, i2 ^2 j! i% \. Oshift1 u1(3 p: A. ]' `# Q% O. k3 t7 w' F! }: B0 W
.clock(clk),
- |4 `5 V, N: u* p* s9 f A* l .clken(clken),
5 @" N v0 O5 Z3 q7 y s .shiftin(data_cnt),
m7 U' T' U1 q! g/ Z; Z .shiftout(data_out));
6 @8 T! w9 q. t a. }1 _4 Kendmodule/ p% o6 a2 O8 s, S& c! C. _" W L( v
; E% A- C/ c+ v; u" J7 b. U% F测试程序:, J! d8 Y3 S. G1 m; @) S. R
initial
2 C3 V8 d @" ~begin
! Z3 k% {; d9 V/ x, ? Kclk=0;
* }% c& h. U4 G$ O3 t; Wdata_in=8'b0;
% T1 E+ u& g8 ]' N% K9 X! W" _, Gclken=1'b0; ' {+ D8 B- g j0 H* Y
end
7 Z. i$ y; w+ k$ Y& D# H
) _* L( }" @% c3 G; B4 r+ ?* Ralways #10 clk=~clk; ) y6 r: c9 C' P9 k: \1 w3 X
initial) H9 J" M" p" h0 v- g
begin
* Y" u( q( D* q0 P& ^ #100 clken=1'b1;: a1 b& q( l: g2 V" i6 Y4 [5 v
#200 clken=1'b0;
9 Z9 p! v$ \9 [! y #100 clken=1'b1;
" r, h! F, g H1 ^ #200 clken=1'b0;" x8 s/ `* R: M& y9 z
#100 clken=1'b1;; X7 {- g I) k& I9 b
#200 clken=1'b0;9 L. Y2 {/ C$ |5 ?' G3 q K
#100 clken=1'b1;- F: x: o. {% H+ ^$ C' W! C
#200 clken=1'b0;
" H0 k) M4 X% e1 S #100 clken=1'b1;
~% O2 s, V6 G" x #200 clken=1'b0; $ f: a/ V+ Z% ~5 X \# g
#100 clken=1'b1;9 R* Y$ A3 Y* ^4 ]7 h" P+ Z
end
& N& X( n( i( r, X S# W& q) X9 Ealways @(posedge clk) 1 K7 Q) M" w0 j5 J7 [5 I; G
begin+ L; J. C1 X! I) R @/ F
if(clken)! m% i: h/ C. |+ Q0 e/ W
data_in=data_in+1'b1; " Z& Z) c7 W. ~5 L+ Q/ E
end / h5 o( u' Z# m5 }, f
endmodule4 d8 n. x- b w. e, a7 o
$ C$ q, m# f5 J( L: m' g
modelsim-ase编译正确,仿真时出错% S0 i. ~# G8 a& b
# ** 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.' v9 x! r. H* J6 P8 J
# Region: /shift_reg_vlg_tst/i1/u1
9 V' e* i" }6 T) ?+ W0 x6 G- T6 q, X S# Error loading design0 a2 y& z0 J6 w9 i+ j; ]4 x8 C- @; _. ~
! T% _. T8 ^: t5 o1 C. U- m; S
' L& T* s# n9 ~0 @* t
有哪位大神做过这个库函数的仿真,求解答!!! |
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