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原程序如下:7 ^& k4 U) _$ t' R
library ieee ;
! D/ _. ^. W# P( {% f& ]3 W; juse ieee.std_logic_1164.all ;' t- L# B W L
use ieee.std_logic_arith.all ;
0 L# k% `( ~- E ]use work.butter_lib.all ; J& P; b8 j8 }
use ieee.std_logic_unsigned.all ;) R* r& J2 o" b7 b9 Q! E
use std.textio.all;
: {( q, L- w: X! c6 p! m3 J: N
+ k0 l- X6 Y- d# U( Mentity synth_test is% P6 }( E) [1 y/ `, g
end synth_test ;' ~5 S' T. F: O6 ^8 A# L) \
9 H" r6 [; E/ S m6 A! rarchitecture rtl of synth_test is 8 P K" b+ D2 r8 K8 R8 D8 G5 F
component synth_main
; \- V7 \) ^6 I' W) Kport(
9 C! _9 y0 H& r6 [: b& k, | data_io : in std_logic_vector(31 downto 0);( y: g7 |+ q4 ]) B- F
final_op : out std_logic_vector(31 downto 0) ;1 X0 O9 W& S! N, O n' l' Q+ d
clock_main,clock,enbl,reset,init : in std_logic2 c4 q1 F, N9 W& U8 ?* L
);' C# ^% \+ n- b, f, Z7 j; G( P/ t
end component;
4 t, L6 F1 ], a+ m& j# ^) J+ {signal data_io : std_logic_vector(31 downto 0);7 F2 }% l2 s& h$ I$ t! Y6 p3 A- w$ x9 x
signal final_op : std_logic_vector(31 downto 0) ;
$ f, c$ }/ F3 M* W) l) @signal clock_main,clock,enbl,reset,init :std_logic;1 S$ f8 n* F* g& t: K( G
9 O D; B* T t+ `" Hbegin9 \; m6 f3 \& R, O# J
dut:synth_main port map(data_io=>data_io,final_op=>final_op,clock_main=>clock_main,clock=>clock,enbl=>enbl,reset=>reset,init=>init);
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process
+ K6 f- j; _5 I8 \variable i : integer := 0 ;
5 L8 ~% g! B- x8 S+ x8 n7 cbegin
s, l. }$ ]2 c# {( n. H q* ufor i in 1 to 1000 loop ! |6 G9 ]" o0 F8 e y
clock <= '1' ;9 q6 u5 y4 P: L
wait for 5 ns ;( t1 N8 Z# q4 f( f" Z) F' M
clock <= '0' ;3 [* S# s r5 D" z( I8 a: F. c
wait for 5 ns ;9 K2 W5 ~/ N, {9 w. \. C
end loop ;
3 d' b4 q) j \/ Xend process ;
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process
8 K. K2 b2 R- I5 U+ F( v4 E" S% yvariable j : integer := 0 ;( n7 u2 n' [' i. u
begin
: N% `; s2 [% ofor j in 1 to 1000 loop / d K2 V" j, w |* _, A& w
clock_main <= '1' ;( `3 U( M* c8 n# o
wait for 200 ns ;
: ?4 d$ P2 G6 m2 qclock_main <= '0' ;/ @8 ^; l3 m. z
wait for 200 ns ;4 E3 f- z# s% q. q/ a# p8 f6 x
end loop ;
6 F% H: K& X' X# t) k( E1 Pend process ;
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process
5 A# @* l& R5 H5 t6 a$ e; U) ofile vector_file : text open read_mode is "C:\modeltech_6.5g\examples\rom_ram.in" ;% \; r( f% p+ h, ^( I4 ^, r
--file vector_file : text IS IN "C:\modeltech_6.5g\examples\rom_ram.dat" ;
4 E4 ~2 O) q& ]variable l , l2 : line ;
% | p2 ?9 B+ c" E% o; I/ e4 {! z- Qvariable q : integer := 31 ;
+ j: `7 U O3 v% Tvariable count : integer ;* x: ~( H! b2 ?
--variable t_a , t_b : std_logic_vector (31 downto 0) ; # _- K: h! ^9 s D* [
variable t_a , t_b : std_logic_vector (31 downto 0) ;
. n( z) y( F% v( n b" Mvariable space : character ;7 P' ~6 L% G0 V
begin
: G; g" y5 x, c
' r% L& n4 r! d' f3 l: P8 iwhile not endfile(vector_file) loop M3 @2 k* Q; a. N, L& Q/ \! l
--for count in 1 to 16 loop2 L, G, G( B6 m; c
q := 31 ;7 I. \& n* p- h# p1 v, ~) M w1 |
readline(vector_file , l2) ;
" z8 t! t4 t9 r0 c2 R' V0 g) W( k1 n7 _: q, S$ r! v2 Q; s
for p in 0 to 31 loop -- data from RAM
& K {/ R; U( x" L% l3 o' v% zread(l2 , t_b(q)) ;
$ \( j5 }: Z8 i' e9 r0 ^) pq := q - 1 ;
7 M; T0 ]1 z+ u: w3 K' R3 w: {end loop ;
% p/ e8 n. D. t6 S9 e8 X9 bq := 31 ;
3 [1 @9 G1 V6 @data_io <= t_b(31 downto 0) ;
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wait for 400 ns ;2 ~+ Q+ C, |, U K2 B( W& B3 b! Z
end loop ;, u1 Z0 V: f6 ^( ^" s; j: E( K
wait for 8 ms ;
' r; q) Z `. O--wait for 650 ns ;
6 n8 Y$ ~: Q6 M( q8 |3 n2 i2 Z9 `+ Xend process;
+ H' m3 M4 n1 e; Q2 K4 c
! W8 ^6 ]0 j% v1 }% N-- process to reset) E- O( j/ e$ U# a6 t" H
process% s$ h8 J5 m. m: n
begin
: X6 P- u( a {% C) {reset <= '1' ;4 m: [( Y; e. |- r
enbl <= '1' ;
1 [& _# V+ l$ {; F* Rwait for 10 ns ;
2 k) {% \. u7 t& C* u" sreset <= '0' ;, {. s6 P7 T& _
wait ;
7 G% k& F& w: P; K& T+ [8 Z( z$ |end process ;
# r& r& {- K6 S5 o! F# N' F
. v" g: d# X' L, F' sprocess4 M+ w, q6 c! z+ e" V
begin
( G: K& u+ \3 `* m: f: @init <= '1' ;* l- e. i# l. P6 ~- y: q- o
wait for 15 ns ;
- h* a5 Q8 @1 h. Z; [( d) K1 Kinit <= '0' ;+ \# _5 i% b/ D2 X
wait ;
2 ^4 ?8 f% M% B# A0 bend process ;
+ W/ P; Z( |3 _/ d; g. p- |- s5 X4 m4 _% H2 C# G
end rtl ;
/ N- I" k! J* J0 C8 ]5 y2 `
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) V7 y7 ^; l2 q0 q7 W3 o1 r
用modelsim仿真提示如下错误:No feasible entries for subprogram "read"., U+ [$ f4 s; D
如果我屏蔽read一行,则程序编程可以通过,我刚学这个,还望高手指点。 |
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