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原程序如下:+ p% L5 R- i: }" k
library ieee ;8 S% W! O; j" c. p; h
use ieee.std_logic_1164.all ;3 l+ H2 M0 e5 z0 G# {
use ieee.std_logic_arith.all ;
7 _- p5 D( X; U7 g/ \* Q; _use work.butter_lib.all ;; e D9 |% n' p
use ieee.std_logic_unsigned.all ;
8 |& [2 p* |& |" u( Tuse std.textio.all;
* G$ \, i) m5 a: Y5 l2 [! W+ x& i& K: T" h: b
entity synth_test is- {; v6 x5 l$ M# \' `
end synth_test ;
) X( |/ | T6 b! ]3 C
+ }$ C' z: z, E, J9 Parchitecture rtl of synth_test is
& b6 R: G' i7 \component synth_main
: \& C" H z/ n) r' z1 {port(7 Y* }; X9 Y! k c8 x
data_io : in std_logic_vector(31 downto 0);
+ ?$ Z7 g$ y7 P' V final_op : out std_logic_vector(31 downto 0) ;
9 Z1 A2 z" K: [9 } clock_main,clock,enbl,reset,init : in std_logic6 F/ ^$ S* l! t- m
);
8 N& u! c6 L# M. Z6 O4 Q/ F# gend component;1 k- }' W" t6 V
signal data_io : std_logic_vector(31 downto 0);) S% ^7 k3 C0 `# l5 Y6 M
signal final_op : std_logic_vector(31 downto 0) ;0 I; G0 @( v. b3 }
signal clock_main,clock,enbl,reset,init :std_logic;
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begin
; N) R6 w+ y: H+ A1 Xdut:synth_main port map(data_io=>data_io,final_op=>final_op,clock_main=>clock_main,clock=>clock,enbl=>enbl,reset=>reset,init=>init);
' G3 ]* p3 e& O Z
j/ {3 e0 T, T+ Cprocess
: ?) k; o; x. \; \' O' p7 mvariable i : integer := 0 ;
% z4 x. r: L. K$ S. Y8 fbegin 2 d; i4 H, Y# e. o& f
for i in 1 to 1000 loop ' ]* N0 u4 [+ X1 m
clock <= '1' ;
6 t5 R( p' _& ], G8 Vwait for 5 ns ;
2 d8 g0 e6 N. H3 w# `clock <= '0' ;" h7 d" v( w8 l" M+ t0 ^# ]
wait for 5 ns ;
) [) L5 |- ?; g Pend loop ;# n# _- J/ z1 G+ h" r
end process ;
) b4 Y- B1 S1 v' u/ S5 w/ [4 e
1 j- N L8 g5 i! O$ oprocess
6 k* K4 P6 @' V, w5 U% mvariable j : integer := 0 ;
9 v- P5 q; p9 V3 T2 N! g8 ybegin
+ V0 [* B* r2 a' R" S$ Jfor j in 1 to 1000 loop 3 t$ I6 O' ] K; v* B7 x
clock_main <= '1' ;; }9 j `6 |3 E5 c" U( M0 h7 p
wait for 200 ns ;
4 Y" K- l) ]: i9 y. S) aclock_main <= '0' ;
) W/ W R% ?: X0 y% l7 [$ ?0 ]wait for 200 ns ;
6 U' B, e0 ]" L2 g! ^end loop ;; X, W0 ^0 f6 [0 H* z
end process ;1 n3 f4 k" e; H9 _7 \; M
8 ]) [5 J: {4 s; w( _) F4 ~
process" C" e8 L1 F4 R2 z' @
file vector_file : text open read_mode is "C:\modeltech_6.5g\examples\rom_ram.in" ;' R( R' ]' R" [( c9 F
--file vector_file : text IS IN "C:\modeltech_6.5g\examples\rom_ram.dat" ;
! d. |! b2 l4 k, V$ D0 L* dvariable l , l2 : line ;% s5 z& D5 V7 f7 ~
variable q : integer := 31 ;
) K" A0 R: h4 Qvariable count : integer ;% O: Z" B$ X& f' }/ G9 U! n2 \
--variable t_a , t_b : std_logic_vector (31 downto 0) ; . ^' }! ~8 z7 G# O
variable t_a , t_b : std_logic_vector (31 downto 0) ; - i5 H, J1 [2 \! M
variable space : character ; c! ^7 a: n5 M \5 X! E. W/ r
begin
* @" B, [( D- P1 a3 p' {
9 v0 G# n: O$ L |% ~6 Mwhile not endfile(vector_file) loop
7 ?7 t: {. p2 o1 C( ^* i# O--for count in 1 to 16 loop" a+ K6 `1 h) ], ?0 O
q := 31 ;8 }1 q$ z. X( D' {4 h6 e
readline(vector_file , l2) ; s1 o* |6 ^' g' o( g
5 N7 w8 Z& f" m+ Q& D
for p in 0 to 31 loop -- data from RAM$ ?: }# T$ @1 @/ ^' a1 m# X5 u
read(l2 , t_b(q)) ;9 o* f) ? G! p& ~* G' n
q := q - 1 ;
1 ]( o% V9 n( V, o, E, S$ Eend loop ; i: @0 _4 Q, n6 [, S6 }4 e5 F
q := 31 ;2 e1 h7 z8 b) F& c+ D& M
data_io <= t_b(31 downto 0) ;6 `) O5 N4 d& u2 `, z% M
) J. C8 J T1 L
wait for 400 ns ;
5 z$ p6 i7 I) pend loop ;- j9 q& b: C, |
wait for 8 ms ;' H# E6 |+ r* s
--wait for 650 ns ;
5 _" C: f X$ ? ^! \. S' send process;
: Q9 [3 o- L; O# B- v1 C* ?
4 y; f, _, _: d! H-- process to reset3 B5 q6 }: ~% G8 O$ }
process
4 A6 ]( o" ^$ B5 l, ubegin/ Z0 q l: n0 b8 w% Y
reset <= '1' ;
4 K' F! W7 Z$ }/ a) y8 o8 Oenbl <= '1' ;
$ o+ \5 u/ s6 }( S7 vwait for 10 ns ;9 X* }- f- q3 F, ]1 y U
reset <= '0' ;
/ J& x7 V/ f6 bwait ;
5 X, Y0 ]: J b- v# mend process ;
" M& F+ @" Z/ |( Y3 `
5 l$ V( t L" T5 D7 K/ l. g, Jprocess
* F! v. y* |3 u" {begin
5 @0 s$ t, u2 t. s$ @$ minit <= '1' ;. _) D1 A9 ~, t
wait for 15 ns ;' C/ _& h$ D4 j8 Z
init <= '0' ;
Z% v& ]0 c0 f+ M5 {0 vwait ;
: C, b! m' M8 U4 |2 }+ aend process ;! P5 k0 |% p7 U
6 w; H _& U, s7 c- J
end rtl ;
2 c3 w; b; U) i- B+ A" J6 d! y, Y/ f! L
' d1 m+ G, W5 k# t; g7 R/ D: T8 W4 u% Y5 U v. S
8 k3 k5 B0 b1 a, ?0 B4 z
用modelsim仿真提示如下错误:No feasible entries for subprogram "read".% C% b* W- N/ r0 a) C2 Z. A
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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