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仿真原理图如下(proteus仿真工程文件可到本帖附件中下载)
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可以通过按键控制角度增减,程序和仿真齐全,可以运行,相互交流。
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单片机源程序如下:1 @* z' O8 s0 y0 @# Z
#include<reg51.h>
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7 a$ ]" s) R1 y! Y( D5 l, Xsbit PWM0 = P1^0;
0 |4 f! H" P0 o7 @sbit PWM1 = P1^1;7 `0 J, |9 z7 C8 z
sbit PWM2 = P1^2;+ H# M! j6 b7 Y3 ~) |& ?
sbit PWM3 = P1^3;
% q1 f0 ?7 Z# Q; Qsbit PWM4 = P1^4;
& I6 A" }+ F& x' Q9 {sbit PWM5 = P1^5;
% T7 p" \3 [" I2 k0 `9 ~sbit PWM6 = P1^6;
0 g" }* |/ w! Wsbit PWM7 = P1^7;5 J6 B+ F9 i1 x& @# S7 N& y3 X
- \: ^& t5 L! \& ~3 W) h' B' s, i
sbit ADD = P2^1;
! N9 P n) Y6 `/ b6 Usbit SUB = P2^2;5 K0 B. K$ I. K* V+ y+ c: |
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#define uchar unsigned char
$ s) q0 U; V5 l, d9 U#define uint unsigned int5 v$ h) T4 w* L, L
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uint t_up0 = 1500; ) K) ~$ s8 E/ w+ I4 @; B
uint t_up1 = 1500; //1.5ms9 A V! t( b, Q% _
uint t_up2 = 1500;+ ^- \) h5 Y- L2 F4 s5 D
uint t_up3 = 1500;" R* w0 F, s" |5 Y# ]; X
uint t_up4 = 1500;3 x- b' l- r! i! \- T
uint t_up5 = 1500;
8 P. Z; Y3 c1 H6 l3 `) c J duint t_up6 = 1500;5 J9 \" y* W. y5 X
uint t_up7 = 1500;5 ~9 H) b4 l. u: [; j1 D
9 Z* I8 C' Z5 ?3 O- a3 l2 M* puint t0_h;+ {4 |% v4 c- y' Y$ b% N" k! k
uint t0_l;
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0 G. y0 ~4 w3 K1 r: zvoid delayms(uint ms)
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1 c( R: ]. L, S8 ^2 a- E unsigned char a,b,c;
8 u; m) d. ?7 k' Q$ X/ ? while(ms--)
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6 E8 ^1 e) Q. b) V. G8 ~ for(c=1;c>0;c--)' \: X S( ~6 p; _7 e1 |3 q
for(b=142;b>0;b--)8 j2 W. R$ w) h$ T! S
for(a=2;a>0;a--);' f [) ]% q0 w: i
}
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; r% V1 L! \4 b' c6 L$ c( D% cvoid timer_init() Z( P8 ^, P8 j/ C
{
% ^( x$ s- R$ `- G: B" x- P; Y# S- f EA = 1;4 [# ]3 M1 s" ^
ET0 = 1;# U- X3 K2 I7 Q
PT0 = 1;
! W; d8 X/ b" T4 H6 O TMOD = 0x11;
) d8 ?2 c/ Y. C9 P. q% x, w TH0 = (65536 - t_up0)/256;% g8 [. M& a- n% E( j) j
TL0 = (65536 - t_up0)%256; 8 f3 A0 f$ v( u- @9 }( O: Y
}% f- ^" {' h1 t) w' I
e, H8 x7 s* a: \
uchar t0_flag = 0;
% \( L5 a- p* l$ ~2 t p. j) x" ?uint num_max = 65535; : v9 P( U; A: S8 m! Z
uint t_change = 63036;
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/ \9 f: _1 m3 ?5 C' Juchar error0 = 45;
# P( S" u; u* d! b2 suchar error1 = 45;8 x6 p) U, h2 b) `
uchar error2 = 52;9 D$ O% N9 x" o' q6 s2 d1 Q+ d* A
uchar error3 = 52;; _9 n/ m% T- Q
uchar error4 = 57;* l' m' Q) a$ {* y+ o' }' p) a4 b
uchar error5 = 57;
1 e, s$ ?1 |" O" y7 Wuchar error6 = 63;: `& a6 c/ X/ J9 E) n: s
uchar error7 = 63;
0 X4 n7 }3 n) Z6 Tuchar error8 = 70;% ~' {0 |% f1 H) K& S# {
uchar error9 = 70;
' U) z: `, }0 ]5 G4 Q1 |2 muchar error10 = 76;3 S; h; r( B6 R1 d# w% ^
uchar error11 = 76;
0 T* S( o! Y5 I) muchar error12 = 82;
2 r2 m2 W3 c1 uuchar error13 = 82;# f5 a3 o# d* H' Z+ G
uchar error14 = 88;7 r& [5 S$ ?0 X& ]3 o; @2 O1 D
uchar error15 = 88;8 X* D. X9 S5 s) U' T& o$ K
6 k, b) `+ Q4 Q* B7 Y6 i; D' c' c) ~void timer0() interrupt 1
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8 G5 w# M1 i( L' v( q if(t0_flag == 0)0 H. Y6 O; U7 `
{
: F' N& I" @% B. J% \0 e PWM0 = 1;
' a! u$ y7 s7 s+ q$ A/ W; w O TH0 = (num_max - t_up0 + error0)/256;
1 ^+ @( |) V* h5 c: f TL0 = (num_max - t_up0 + error0)%256;
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t0_flag = 1;" w" b3 F' y9 i2 h2 G
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else if(t0_flag == 1)9 a+ ]0 |# e4 r! H. |1 y- ]
{
( z+ \) U2 j5 k& o0 \# P PWM0 = 0;
2 Y1 _3 `" R5 F: F8 W! r TH0 = (t_change + t_up0 +error1)/256;: m ]' K- z$ F6 \% ^3 I! N
TL0 = (t_change + t_up0 +error1)%256;
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t0_flag = 2;# p* ^3 l$ j' y3 g5 {( A' y
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else if(t0_flag == 2)( \6 ]1 O, g! y/ x g0 ~5 [
{
! i% b: l& q( u( [! W% M PWM1 = 1;5 g. o3 f2 z- t2 e, Q6 m
TH0 = (num_max - t_up1 + error2)/256;8 P9 P% f/ v) R
TL0 = (num_max - t_up1 + error2)%256;
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' C ^; o/ L* Q4 ?3 [ t0_flag = 3;
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else if(t0_flag == 3)) O3 p( i% y; K- T) N
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PWM1 = 0;
- W! Y$ i+ ~$ G# w* ^7 d TH0 = (t_change + t_up1 +error3)/256;
4 k# d6 o. H8 P9 b2 n TL0 = (t_change + t_up1 +error3)%256;# R2 M; t+ L/ \; W/ h: ?2 w) a
3 r# i% I0 M: B" O0 L t0_flag = 4;
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else if(t0_flag == 4)
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5 I: A' ^* w# w% X% @8 v PWM2 = 1;
9 w% r3 t: S! G TH0 = (num_max - t_up2 + error4)/256; //+£¿êÇÎaáËμÖÏûÖ′DDóï¾ä»¨μÄê±¼ä* w- t- T; U. e, Z' o) S% t
TL0 = (num_max - t_up2 + error4)%256;
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t0_flag = 5;
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! X3 z- n9 ]2 y) Q else if(t0_flag == 5)0 ~! H- \- r. d; Y) }! u
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PWM2 = 0;
3 D9 Q! D4 ?+ v1 t' x9 ?' \+ P TH0 = (t_change + t_up2 +error5)/256;( {5 Q3 I+ S7 [$ T( P: ~( i2 O/ U
TL0 = (t_change + t_up2 +error5)%256;
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t0_flag = 6;
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( A$ `5 A9 H' n) W, T5 v X else if(t0_flag == 6)$ ~9 W' ]/ J2 {4 B, t* u
{" T. ?% v9 R6 G0 S$ @
PWM3 = 1;) s7 X. U1 W( l$ _: I
TL0 = (num_max - t_up3 + error6)%256;2 V B, h5 ?9 v+ L5 X: [$ G; j+ P
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t0_flag = 7;
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, F) y. C# S& D& ~ else if(t0_flag == 7)
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: t; Q$ W) i, w7 c1 E PWM3 = 0;
8 a( {, p, k" |: l TH0 = (t_change + t_up3 +error7)/256;
4 _- F/ i7 K9 e5 b @ TL0 = (t_change + t_up3 +error7)%256;0 A# s$ }' y# d+ ]+ {" ^
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t0_flag = 8;
% Q0 m4 W0 j' k0 K3 K }
. q% }7 c* U+ a! T I else if(t0_flag == 8)( B$ x# P3 Y4 A; ?; A% I, F
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PWM4 = 1;
$ G: A+ [) Y& \/ F1 i' d TH0 = (num_max - t_up4 + error8)/256; //+£¿êÇÎaáËμÖÏûÖ′DDóï¾ä»¨μÄê±¼ä4 `5 O) z" T( y) n& \& m2 r+ \
TL0 = (num_max - t_up4 + error8)%256;4 ^( Q- N A4 c6 g* i! K8 @, c
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t0_flag = 9;) v) f0 A# M9 k* p9 h
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else if(t0_flag == 9): W0 R" x6 J5 [% B( i
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PWM4 = 0;# i, o H. ^- o R5 T- g! K `
TH0 = (t_change + t_up4 +error9)/256;
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t0_flag = 10;
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else if(t0_flag == 10)8 S7 u* {8 f0 d+ k1 ?0 v$ e
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PWM5 = 1;0 D' F+ b% k% \* r4 V! Z& \2 K& E
TH0 = (num_max - t_up5 + error10)/256; //+£¿êÇÎaáËμÖÏûÖ′DDóï¾ä»¨μÄê±¼ä
/ \5 R8 ~8 y' `. q) D4 h* l TL0 = (num_max - t_up5 + error10)%256;; h4 E( `1 B0 L8 |# p+ V, z, g$ p
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t0_flag = 11;
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else if(t0_flag == 11)
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' K) J0 K2 Z0 v, [. p2 v PWM5 = 0;7 E4 l2 L/ T! A% L. ~" c' B
TH0 = (t_change + t_up5 + error11)/256;4 \* Z) z) @6 V t+ n; m5 k; c
TL0 = (t_change + t_up5 + error11)%256;+ D5 H9 {8 o$ `
}: @6 l' h8 V) t( @9 J t0_flag = 12;2 n& I2 N. x% ^# k5 k
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else if(t0_flag == 12)- O' R& q: b6 ~/ K; s
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PWM6 = 1;
, ?; k& f5 m+ E4 W1 Y t2 Q m TH0 = (num_max - t_up6 + error12)/256; //+£¿êÇÎaáËμÖÏûÖ′DDóï¾ä»¨μÄê±¼ä
% [; l( d+ j: a4 O4 M; ? TL0 = (num_max - t_up6 + error12)%256;# v. e' q2 T% N8 G- e6 Z( Q% Q( O
/ }3 l6 T' P3 i B8 D t0_flag = 13;7 p: h3 @" M5 [- y
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else if(t0_flag == 13)6 m; E! G* Z5 P/ ~
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PWM6 = 0;
/ J# v4 t* t& o' ]4 Z TH0 = (t_change + t_up6 + error13)/256;/ j( @" ?, {! q/ k0 ?
TL0 = (t_change + t_up6 + error13)%256;; b- D% G S( C0 n+ K3 Y, `
2 N7 L4 J8 H1 v. t4 i# Z+ f( v; M" m t0_flag = 14;1 [5 S' l5 Y% e1 L2 ]
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else if(t0_flag == 14)
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PWM7 = 1;
# C4 g( E* a, E H2 ?9 `& g3 I6 r6 L TH0 = (num_max - t_up7 + error14)/256; //+£¿êÇÎaáËμÖÏûÖ′DDóï¾ä»¨μÄê±¼ä
2 j7 C4 c( w) y8 C: S TL0 = (num_max - t_up7 + error14)%256;
U% I0 V: C! T& g
& p* I# ]! B( J2 I+ j t0_flag = 15;
9 |' X0 D3 W1 z }
; }1 w3 m1 @- A9 }; a else if(t0_flag == 15)4 X. k/ |( Z; |* Y% c
{
, o2 Y! i5 c- X3 i: m8 k- J" U5 {: o% T PWM7 = 0;
# d g) a! o' G TH0 = (t_change + t_up7 + error15)/256;
% i* A1 z2 g# r+ r! W7 z TL0 = (t_change + t_up7 + error15)%256;
/ ~1 {( Q5 ^* k! n% K/ f
/ m1 {" U( c: _$ e! @( L1 D/ U t0_flag = 0;
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+ {: d8 d1 R7 d* O6 \void main()8 O6 L% T% W, ?2 [
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uint t_while;: y2 G! g8 r9 n& K! | [
timer_init();
5 z4 X; t# M- ~ \/ w6 _! s TR0 = 1;7 S2 B, Z3 K% R* b+ w
while(1), x! ]' X) h# x' I+ | g* Z
{
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if(ADD == 0)
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delayms(2);& P" ^- V/ C. N
if(ADD == 0)( s v8 }; h8 ~. ~$ K+ f H
{
: W% u( q* E2 n# ?& f if(t_up0 <= 1950)
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t_up0 = t_up0 + 50;4 s* a) _' v5 `5 x6 Z$ T0 s
t_up1 = t_up1 + 50;
, g3 T$ Y+ G" h0 }1 c9 a t_up2 = t_up2 + 50;
% D+ J, I. A/ {! C! v t_up3 = t_up3 + 50;
) ?, f* S: x( m) a# A7 V1 L t_up4 = t_up4 + 50;
W4 g! h) A9 {; X t_up5 = t_up5 + 50;* Y8 o+ c% H) v4 x h" U
t_up6 = t_up6 + 50;
2 z! m$ @! Q( E* ~1 I t_up7 = t_up7 + 50;$ |% Y6 m$ J- m3 @- M
}
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3 d* \2 d8 I; n; y" z t_while = 50000;
! \0 U" Y8 U$ z, X4 } while(t_while--) //
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if(ADD == 1): |) u; c6 p2 d# Q8 `- V8 Q/ B9 W
break;
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}
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$ {- H2 j" g: O( D$ \' c; W2 c @/ Z: }
if(SUB == 0)7 z# O- g1 g6 \ Y: o5 l
{
. I" a3 ]' `- V" y; s3 J delayms(2);( W2 g8 j K3 E' X
if(SUB == 0)
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if(t_up0 >= 1050)
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t_up0 = t_up0 - 50;
7 U n: |% i1 i3 p6 r3 m1 X t_up1 = t_up1 - 50;
3 Z0 X: L9 N: |8 j t_up2 = t_up2 - 50;" c/ A& o/ s9 N* t9 k
t_up3 = t_up3 - 50;' h6 W4 S% ?5 ~' q$ l2 v
t_up4 = t_up4 - 50;& d ?) R6 ]" e; v; b& A
t_up5 = t_up5 - 50;
. R) l$ l. ~. ~( a2 q; J t_up6 = t_up6 - 50;
) V9 |) A) c* K! Z t_up7 = t_up7 - 50;( a2 q( z! `9 b, c* }: i
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t_while = 50000;6 }& ~ s4 h y. t' F( B% S
while(t_while--)9 O! \ F# C) o( P
{
I2 l0 p3 e: q if(SUB == 1)
! S' U( P' Z$ h" F& }9 P break;
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}
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