自行车简易数字里程表设计论文

if(yue == 0x01) yue = 0x13;

if((yue & 0x0f) == 0x00)

yue = (yue | 0x0a) - 0x10;

yue -- ;

} }

if(menu_2 == 7) //设置日

{

if(key_can == 3) //加 {

ri+=0x01;

if((ri & 0x0f) >= 0x0a) ri = (ri & 0xf0) + 0x10;

if(ri >= 0x32)

ri = 0; }

if(key_can == 4) //减

{

if(ri == 0x01) ri = 0x32;

if((ri & 0x0f) == 0x00)

ri = (ri | 0x0a) - 0x10;

ri -- ; } }

write_sfm2_ds1302(1,2,shi); //显示时

write_sfm2_ds1302(1,5,fen); //显示分

write_sfm2_ds1302(1,8,miao); //显示秒

write_sfm1(1,14,week); //显示星期

write_sfm2_ds1302(2,3,nian); //显示年 write_sfm2_ds1302(2,6,yue); //显示月

write_sfm2_ds1302(2,9,ri); //显示日

switch(menu_2) // 光标显示

{

case 1: write_guanbiao(1,2,1); break; case 2: write_guanbiao(1,5,1); break; case 3: write_guanbiao(1,8,1); break; case 4: write_guanbiao(1,14,1); break; case 5: write_guanbiao(2,3,1); break; case 6: write_guanbiao(2,6,1); break; case 7: write_guanbiao(2,9,1); break; }

write_time(); //把时间写进去 }

if(menu_1 == 2) {

if(menu_2 == 1) //设置速度

{

if(key_can == 3) //加 {

bj_shudu++;

if(bj_shudu >= 99) bj_shudu = 0; }

if(key_can == 4) //减

{

if(bj_shudu != 0) bj_shudu -- ;

}

}

if(menu_2 == 2) //把总量程清零 {

if(key_can == 3) {

zong_lc= 0; }

if(key_can == 4) {

zong_lc= 0; } }

write_sfm2(1,7,bj_shudu); //显示报警速度

write_sfm7(2,4,zong_lc); //显示

switch(menu_2) // 光标显示

{

case 1: write_guanbiao(1,6,1); break; case 2: write_guanbiao(2,3,1); break; }

write_eeprom(); } }

/****************报警函数***************/ void clock_h_l() {

static uchar value; if((shudu >= bj_shudu)) {

value ++; //消除实际距离在设定距离左右变化时的干扰 {

beep = ~beep; //蜂鸣器报警 } } else {

beep = 1; } }

/******************主程序**********************/ void main() {

// beep = 0;

delay_1ms(200) ;

P0 = P1 = P2 = P3 = 0xff; //IO口初始为电平

init_ds1302_io(); init_ds1302();

init_1602(); //1602初始化 init_int0();

time_init(); //定时器0初始化程序

init_eeprom(); //开机初始化保存的数据* while(1)

{ // shudu = 11;

key(); //按键程序 if(key_can < 10) {

key_with();

}

if(flag_200ms == 1) {

flag_200ms = 0;

read_time(); //读时间

if(menu_1 == 0)

init_1602_ds1302(); //显示时钟

menu_dis(); //计算速度函数

clock_h_l(); //报

警函数 } } }

/*********************外部中断0中断服务程序************************/ void int0() interrupt 0 {

static uchar value; switch(value) {

case 0:

t1_num = 0; //第一次就把变量清零

TH1 = 0; TL1 = 0; break; case 1:

t2_num = t1_num; //保存

TH11 = TH1; TL11 = TL1; flag_en = 1; break; } }

/*************定时器0中断服务程序***************/

void time0_int() interrupt 1 {

static uchar value; TH0 = 0x3c;

TL0 = 0xb0; // 50ms value++;

if(value % 4 == 0) flag_200ms = 1;

if(value >= 20) //1秒 才是一秒钟的速度 {

value = 0;

flag_1s = 1; } }

/*************定时器1中断服务程序***************/

void time1_int() interrupt 3 {

t1_num++; }