求助，自行车里程速度表单片机编程遇到了问题 -

#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long
sbit lcd_rs = P1^0;
sbit lcd_rw = P1^1;
sbit lcd_en = P1^2;
sbit scl=P3^6;
sbit sda=P3^7;
sbit key1=P2^0;
sbit key2=P2^1;
sbit key3=P2^2;
sbit key4=P2^3;
uint speed;
uint ave_speed;
ulong mileage;
ulong all_mileage;
uchar eeprom_mileage;
uchar str_speed[16];
uchar str_ave_speed[16];
uchar str_mileage[16];
uchar str_all_mileage[16];
uint int1_count;
uint all_int1_count;
uint int1_count100;
uint time;
uint all_time;
bit start;
uchar key;
uchar q_count;
uchar de;
void eeprom_init(); //存储读写
void eeprom_start();
void eeprom_stop();
void eeprom_ack();
void eeprom_noack();
void eeprom_write(uchar dat);
uchar eeprom_read();
void eeprom_writedat(uchar add,uchar dat);
uchar eeprom_readdat(uchar add);
bit lcd_busy(); //lcd显示
void lcd_wcmd(uchar cmd);
void lcd_wdat(uchar dat);
void lcd_init();
void lcd_pos(uchar pos);
void display(uchar str1[],uchar str2[]);
void str_speed_init(); //修改显示缓冲区
void str_ave_speed_init();
void str_mileage_init();
void str_all_mileage_init();
void str_change();
void mileage_clean();
void system_init();
void system_start();//系统启动，停止
void system_stop();
void write(uint dat);//
/*************延时函数*********************/
void delayNOP()
{
_nop_();_nop_();_nop_();_nop_();
}
void delay()
{
_nop_();_nop_();_nop_();_nop_();
_nop_();_nop_();_nop_();_nop_();
}
void delayms(uchar x)
{
uchar i,j;
for(;x>0;x--)
for(i=4;i>0;i--)
for(j=113;j>0;j--);
}
void delay10ms(uchar x)
{
uchar i,j;
for(;x>0;x--)
for(i=151;i>0;i--)
for(j=29;j>0;j--);
}
void delay1s(uchar x)
{
uchar a,b,c;
for(;x>0;x--)
{
for(c=46;c>0;c--)
for(b=152;b>0;b--)
for(a=70;a>0;a--);
_nop_();
}
}
/*************延时函数*********************/
/*************中断函数*********************/
void int0() interrupt 0
{
int1_count++;
int1_count100++;
all_int1_count++;
}
void int1() interrupt 2
{
delay10ms(2);
if(key1==0)
{
key=1;
}else if(key2==0)
{
key=2;
}else if(key3==0)
{
key=3;
}else if(key4==0)
{
key=4;
}
}
void timer0() interrupt 1
{
TL0=(65536-50000)%256;
TH0=(65536-50000)/256;
time++;
if(time>=20)
{
all_time++;
speed=0.6*3.14*int1_count/36*1000;
mileage=0.6*3.14*all_int1_count;
ave_speed=mileage/36*1000/all_time;
all_mileage=eeprom_mileage+mileage;
de=0;
int1_count=0;
time=0;
}
}
/*************中断函数*********************/
/*************EEPROM存储函数*********************/
void eeprom_start(void)
{
sda=1;
delay();
scl=1;
delay();
sda=0;
delay();
}
void eeprom_stop(void)
{
sda=0;
delay();
scl=1;
delay();
sda=1;
delay();
}
void eeprom_ack(void)
{
uchar i;
scl=1;
delay();
while((sda==1)&&(i<200))i++;
scl=0;
delay();
}
void eeprom_noack(void)
{
sda=1;
delay();
scl=1;
delay();
scl=0;
delay();
}
void eeprom_init(void)
{
sda=1;
scl=1;
}
void eeprom_write(uchar dat)
{
uchar i;
scl=0;
for(i=0;i<8;i++)
{
if(dat&0x80)
{
sda=1;
}
else
{
sda=0;
}
dat=dat<<1;
delay();
scl=1;
delay();
scl=0;
delay();
}
sda=1;
delay();
}
uchar eeprom_read(void)
{
uchar i;
uchar dat;
scl=0;
delay();
sda=1;
delay();
for(i=0;i<8;i++)
{
scl=1;
delay();
dat=dat<<1;
if(sda)
{
dat++;
}
scl=0;
delay();
}
return dat;
}
void eeprom_writedat(uchar add,uchar dat)
{
eeprom_init();
eeprom_start();
eeprom_write(0xa0);
eeprom_ack();
eeprom_write(add);
eeprom_ack();
eeprom_write(dat);
eeprom_ack();
eeprom_stop();
}
uchar eeprom_readdat(uchar add)
{
uchar a;
eeprom_init();
eeprom_start();
eeprom_write(0xa0);
eeprom_ack();
eeprom_write(add);
eeprom_ack();
eeprom_start();
eeprom_write(0xa1);
eeprom_ack();
a=eeprom_read();
eeprom_noack();
eeprom_stop();
return a;
}
/*************EEPROM存储函数*********************/
/*************LCD函数*********************/
bit lcd_busy()
{
bit result;
lcd_rs = 0;
lcd_rw = 1;
lcd_en = 1;
delayNOP();
result = (bit)(P0&0x80);
lcd_en = 0;
return result;
}
void lcd_wcmd(uchar cmd)
{
while(lcd_busy());
lcd_rs = 0;
lcd_rw = 0;
lcd_en = 0;
_nop_();
_nop_();
P0 = cmd;
delayNOP();
lcd_en = 1;
delayNOP();
lcd_en = 0;
}
void lcd_wdat(uchar dat)
{
while(lcd_busy());
lcd_rs = 1;
lcd_rw = 0;
lcd_en = 0;
P0 = dat;
delayNOP();
lcd_en = 1;
delayNOP();
lcd_en = 0;
}
void lcd_init()
{
delayms(15);
lcd_wcmd(0x38);
delayms(5);
lcd_wcmd(0x38);
delayms(5);
lcd_wcmd(0x38);
delayms(5);
lcd_wcmd(0x0c);
delayms(5);
lcd_wcmd(0x06);
delayms(5);
lcd_wcmd(0x01);
delayms(5);
}
void lcd_pos(uchar pos)
{
lcd_wcmd(pos | 0x80);
}
void display(uchar str1[],uchar str2[])
{
uchar m;
lcd_init();
lcd_pos(0);
m=0;
while(str1[m] != '\0')
{
lcd_wdat(str1[m]);
m++;
}
lcd_pos(0x40);
m=0;
while(str2[m] != '\0')
{
lcd_wdat(str2[m]);
m++;
}
}
/*************LCD函数*********************/
/*************修改显示缓冲区函数*********************/
void str_speed_init()
{
str_speed[0]='S';
str_speed[1]='p';
str_speed[2]='e';
str_speed[3]='e';
str_speed[4]='d';
str_speed[5]=':';
str_speed[6]=(speed%100000)/10000+0x30;
str_speed[7]=(speed%10000)/1000+0x30;
str_speed[8]=(speed%1000)/100+0x30;
str_speed[9]='.';
str_speed[10]=(speed%100)/10+0x30;
str_speed[11]=speed%10+0x30;
str_speed[12]='k';
str_speed[13]='m';
str_speed[14]='/';
str_speed[15]='h';
}
void str_ave_speed_init()
{
str_ave_speed[0]='A';
str_ave_speed[1]='v';
str_ave_speed[2]='e';
str_ave_speed[3]='-';
str_ave_speed[4]='S';
str_ave_speed[5]=':';
str_ave_speed[6]=(ave_speed%100000)/10000+0x30;
str_ave_speed[7]=(ave_speed%10000)/1000+0x30;
str_ave_speed[8]=(ave_speed%1000)/100+0x30;
str_ave_speed[9]='.';
str_ave_speed[10]=(ave_speed%100)/10+0x30;
str_ave_speed[11]=ave_speed%10+0x30;
str_ave_speed[12]='k';
str_ave_speed[13]='m';
str_ave_speed[14]='/';
str_ave_speed[15]='h';
}
void str_mileage_init()
{
str_mileage[0]='M';
str_mileage[1]='i';
str_mileage[2]='l';
str_mileage[3]='e';
str_mileage[4]='a';
str_mileage[5]='g';
str_mileage[6]=':';
str_mileage[7]=(mileage%1000000)/100000+0x30;
str_mileage[8]=(mileage%100000)/10000+0x30;
str_mileage[9]=(mileage%10000)/1000+0x30;
str_mileage[10]=(mileage%1000)/100+0x30;
str_mileage[11]='.';
str_mileage[12]=(mileage%100)/10+0x30;
str_mileage[13]=mileage%10+0x30;
str_mileage[14]='k';
str_mileage[15]='m';
}
void str_all_mileage_init()
{
str_all_mileage[0]='A';
str_all_mileage[1]='l';
str_all_mileage[2]='l';
str_all_mileage[3]='-';
str_all_mileage[4]='M';
str_all_mileage[5]='i';
str_all_mileage[6]=':';
str_all_mileage[7]=(all_mileage%1000000)/100000+0x30;
str_all_mileage[8]=(all_mileage%100000)/10000+0x30;
str_all_mileage[9]=(all_mileage%10000)/1000+0x30;
str_all_mileage[10]=(all_mileage%1000)/100+0x30;
str_all_mileage[11]='.';
str_all_mileage[12]=(all_mileage%100)/10+0x30;
str_all_mileage[13]=all_mileage%10+0x30;
str_all_mileage[14]='k';
str_all_mileage[15]='m';
}
void str_change()
{
str_speed_init();
str_ave_speed_init();
str_mileage_init();
str_all_mileage_init();
if(q_count)
{
display(str_ave_speed,str_all_mileage);
}else if(~q_count)
{
display(str_speed,str_mileage);
}
}
/*************修改显示缓冲区函数*********************/
/*************系统初始化函数*********************/
void system_init()
{
EA=1;
EX1=1;
IT1=1;
}
/*************系统初始化函数*********************/
/*************启动函数*********************/
void system_start()
{
EA=1;
EX0=1;
IT0=1;
TMOD=0x01;
ET0=1;
TR0=1;
TL0=(65536-50000)%256;
TH0=(65536-50000)/256;
eeprom_mileage = eeprom_readdat(00)+eeprom_readdat(01)*256+eeprom_readdat(02)*65536+eeprom_readdat(03)*256*65536;
}
void system_stop()
{
EA=0;
lcd_wcmd(0x01);
}
/*************启动函数*********************/
/*************里程清零函数*********************/
void mileage_clean()
{
write(all_mileage);
delay10ms(3);
eeprom_mileage=all_mileage;
mileage=0;
all_int1_count=0;
}
/*************里程清零函数*********************/
void write(uint dat)
{
eeprom_writedat(00,dat%65536%256);
delay10ms(3);
eeprom_writedat(01,dat%65536/256);
delay10ms(3);
eeprom_writedat(02,dat/65536%256);
delay10ms(3);
eeprom_writedat(03,dat/65536/256);
delay10ms(3);
}
void main()
{
while(1)
{
if(~start)
{
system_init();
}
if(int1_count100>=100)
{
write(all_mileage);
int1_count100=0;
}
switch(key)
{
case 1:if(~start)
{
key=0;
start=~start;
system_start();
str_change();
}
break;
case 2: if(start)
{
key=0;
start=~start;
system_stop();
}
break;
case 3:if(start)
{
key=0;
q_count=~q_count;
}
str_change();
break;
case 4: if(start)
{
key=0;
mileage_clean();
str_change();
}
break;
default:if(start)
{
de=1;
key=0;
str_change();
while(1&de){}
}
break;
}
}
}

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