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module shift_reg(clk,clken,data_in,data_out);
- S$ |. c! C$ rinput clk;9 n0 [; o/ G1 ]5 @) O/ Q: i
input clken;
/ g4 ^1 u6 }5 f) P6 a, V. Uinput [7:0] data_in;
7 Z7 ~' Q( P! I9 q3 Y Aoutput [7:0] data_out;
& k0 k& A Y# V* \
2 D- E4 @% a& v% Z3 i1 l/*always @(posedge clk)
' X; D5 w1 K9 @, P! `" Y' z- `begin( z" o" h4 Y) {( |/ T& v8 s/ @, ]" j
data_cnt=data_cnt+8'd1;/ i4 ^0 p! r Z0 A
end*/8 ]8 f2 h. n4 Y0 w
6 e" ^6 L/ Q% B1 s+ h
2 k# k. U7 [$ A9 _shift1 u1(9 x7 k" e s* ]8 J7 O$ f' X
.clock(clk),
9 C. D& W2 D+ P) F! n2 v( _. M .clken(clken),* N6 s6 e5 N5 c! y* y, K# l
.shiftin(data_cnt),
1 w& M% _8 [- r$ B4 l4 V5 M: Y" {$ P .shiftout(data_out));
: h& J3 u5 H* a" y( r6 wendmodule
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# M0 j7 j0 t2 L" j) w测试程序:
. R$ e+ ?2 k6 e2 e9 dinitial
; w4 ?+ ]+ f, v, Z5 lbegin
; O* a) J* @& rclk=0;! a, L3 Y: N1 y5 u2 G! s
data_in=8'b0;
0 u5 s3 R9 I; q" q! \2 jclken=1'b0;
1 b+ ~" u+ H3 }' t6 Bend
# M& t- z3 ?- W% @* z 4 {- D9 ?% b, ?- ?" N
always #10 clk=~clk;
' x. V8 p4 \& I: Rinitial. j0 M% O6 Y8 n7 T6 [3 l5 x9 p8 `
begin4 K% a3 b4 a% @% P' Z1 I4 p
#100 clken=1'b1;
& a1 Y+ N2 l, k3 C6 N. G! E #200 clken=1'b0;, b' x. x+ w$ b) [' }9 v( ?. U
#100 clken=1'b1;
) l+ c4 [' b& W1 r' v$ D2 f #200 clken=1'b0;
# d9 F, Z, n! f) M$ I #100 clken=1'b1;8 |' e9 U" R0 r& K( \
#200 clken=1'b0;
. Y* ?0 S, C' u3 a5 I5 a! B #100 clken=1'b1;+ U6 _# O( ]: x
#200 clken=1'b0;, c- i; X4 Z/ c' K
#100 clken=1'b1;
6 Q+ ]0 J( G' j7 O #200 clken=1'b0;
' q+ I$ k+ [% E/ k #100 clken=1'b1;* c4 e% m2 r- ?6 n
end
/ Q& `2 p7 Y4 qalways @(posedge clk) N4 z+ Q* } @: M
begin
& i( c* E, l, m- u2 s$ _ z if(clken), [; z, v' ^1 Z5 T7 h
data_in=data_in+1'b1;
% G3 T1 r( S3 L" K% rend - Y6 h, @8 @8 ~: f) Q: V |- e
endmodule
2 S- Q% P$ V- ?, o* o4 u2 _% n# Q1 c* ^9 ?' S
modelsim-ase编译正确,仿真时出错% `; U' c6 @, w" h3 ?/ R# i: s. C4 y+ R
# ** 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.: h4 q n7 I, P ^3 g1 A$ J* A6 z
# Region: /shift_reg_vlg_tst/i1/u1+ q y2 I5 D2 y7 C/ s
# Error loading design
: k2 V5 d- ^1 P5 m/ R Z
) Y9 w% h2 U- f7 \4 ^! h! U' [4 Y& S) B0 L% m' W8 o8 j
有哪位大神做过这个库函数的仿真,求解答!!! |
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