有段程序不知哪里错了求大神指点

2019-07-16 00:57发布

#include <reg51.h>#include <intrins.h>#define uchar unsigned char#define uint unsigned intsbit K1 = P1^4;sbit K2 =P1^5;sbit P1_7=P1^7;uint time; uchar count; uchar sec; uchar sc; uchar key_s, key_v;/**********************************函数声明***********************************/bit scan_key();void keyscan(void); void proc_key();void display(void);uchar data dis[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};void delayms(unsigned char ms); /**********************************主函数*************************************/void main(void){P0 = 0xff; // 关闭数码管显示P2 =0xff; TMOD= 0x51; TH0 = 0x4c; TL0 = 00; TH1= 00; TL1= 00; IE = 0x82; TR0= 0; TR1= 0; P1_7=1; key_v= 0x03; while(1) { keyscan();display();}}void keyscan(void){if(scan_key()) { delayms(10); if(scan_key()) {key_v = key_s; proc_key(); } }}void display(void){if(TL1*4>90) { P1_7=0;}else {P0=dis[TL1*4/10]; P2=0xfd; delayms(2); P0=dis[TL1*4%10]; P2=0xfe; delayms(2); P0=dis[sec/10]; P2=0X7F; delayms(2); P0=dis[sec%10]; P2=0XBF; delayms(2); }}bit scan_key(){key_s = 0x00;key_s |= K2;key_s <<= 1;key_s |= K1;return(key_s ^ key_v); }void proc_key(void){if((key_v & 0x01) == 0) {TR0=1; TR1=1; }else if((key_v & 0x02) == 0){TR0=0; TR1=0; }}void timer0() interrupt 1{ time++; sc++;if(sc==20){sec++;sc=0;}if(time==1200) { time=0; TR0=0; TR1=0; }else { TH0 = 0x4c; TL0= 0x00; }} void delayms(unsigned char ms) { unsigned char i;while(ms--) { for(i = 0; i < 120; i++);}}
是将外部端口（P3.5）的数据显示在出来的，K1(P1.4)、K2(P1.5)是开关，分别是启动和关闭定时器和计数器的但是我启动之后数码管全显示88888888 （2个四位的数码管）求指出错在哪，并修正下感激不进啊

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