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求大佬帮忙看一看改一改吧,为什么只能显示个位,显示不了十位百位?
! L/ O0 Y4 }0 q% r1 Z8 ?( ?9 I#include<reg51.h>
6 P9 L- R$ N6 v( K( Z#define uint unsigned int
, d2 d6 W" H( ~+ w4 T#define uchar unsigned charsbit P2_3=P2^3;
* q* ~ b' W, csbit k1=P3^4;# E6 ]) j! U% a0 u" K
sbit k2=P3^5;
5 j9 k( S q2 R) ^ }. y& }sbit k3=P3^6;
8 j3 o+ A; L4 [; W, b4 ssbit k4=P3^7;
' A' `* j) G2 U3 nsbit dula=P2^6;
$ p# I. a+ `1 I$ \! t; C: }4 Dsbit wela=P2^7;6 e/ c# G; P4 s! ?- M
uint pwm,num;0 v; \4 B/ [4 Z* e# O% ?
uchar temp,a;
; T) s. @" M1 k1 \) Muchar code table[]=7 B, Q; T5 T, y( H/ z8 `' R4 h
{ 0x3f ,0x06 ,0x5b ,0x4f,0x66 ,0x6d, 0x7d ,0x07 ,0x7f, 0x6f}
- D# L. F1 v; a) J) V" b1 \;
- |* N- i$ {+ ?# W( l6 P; |0 kuint G_H,G_L,D_H,D_L;void delay(uint t){uint x,y;for(x=t;x>0;x--)* ~! |+ |+ p2 ^/ A; N+ `' v
for(y=150;y>0;y--); |: M# M/ c D) E c3 v4 N& E
}3 p( o, J3 `; Y; b' o4 `1 d
void display(pwm)
% @1 e/ |1 K, H{& p* o1 \1 a1 d6 }
unsigned char m,n,q;m=pwm/100;n=pwm/100%10;q=pwm%10;
K: }& R* Z |6 N9 T5 l; M# w dula=1 0=table[m];dula=0;wela=1 0=0xfe;wela=0;delay(1);
# y3 Y2 U3 b& |/ O0 q dula=1 0=table[n];dula=0;wela=1;P0=0xfd;wela=0;delay(1);
]7 J% a, o# P: q0 P' a; |dula=1;8 ?2 T) a* L8 r# N: L. j( l% y3 s
P0=table[q];
$ W/ m9 A2 j7 d( j& ?% K- @dula=0;
8 p l# q% m( ]" pwela=1;1 d5 n, e$ k8 J% p
P0=0xfb;
1 A# A' m( T- p8 Rwela=0;
" L2 o% |, a% v, |7 Ddelay(1);
- W5 q* c h# E/ h8 v6 Z}* ^( k8 t0 p3 p# o
void main()
# t( B0 u) @, ^- I" H9 k5 z/ v1 |{ EA=1; ET0=1; TMOD=0x01; TR0=1; P2_3=0; while(1) { G_H=(65536-pwm)/256; G_L=(65536-pwm)%256; D_H=(65536-100+pwm)/256; D_L=(65536-100+pwm)%256; if(k1==0) {delay(10);while(!k1);TR0=1;pwm=50;} if(k2==0) {delay(10);while(!k2);pwm=(pwm==100)?100 pwm+1);} if(k3==0) {delay(10);while(!k3);pwm=(pwm==0)?0 pwm-1);} if(k4==0) {delay(10);while(!k4);TR0=0;P2_3=0;pwm=0;} TF0=0; display(pwm); }}
- g0 j. m( L% R4 y2 c6 Q. [void timer0() interrupt 1{ P2_3=~P2_3; if(P2_3==1) {TH0=G_H;TL0=G_L;} if(P2_3==0) {TH0=D_H;TL0=D_L;}}
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