DS1302与1602显示时间正常，但用按键无法调整时间，好像是数据没有存入，找不到问题请教大家了下面代码是DS1302的驱动代码；
#include"sys_config.h"
u8 getTimebuf[7];//存放时间数据
u8 time[]={" : : "}; //时间格式字符串
u8 date[]={"20 - - "}; //日期格式字符串
u8 week[]={" "}; //星期格式字符串
u8 weeklist[]={"SunMonTueWedThuFriSat"}; //星期字符列表
int count=0;//设定秒分时日月星期年的时候count的值分别为1235647
int alarm=0;//是否进入闹钟设置界面 123分别代表开关 分 小时的设置
int isOpen;//闹钟是否开启 默认不开启
int fen,shi;//闹钟的分钟小时
int isRing;//闹钟是否在响
u8 isInit_1302;//是否初始化时钟完毕
//sbit scl=P1^3;//时钟线
//sbit rst=P1^5;//复位线
//sbit io=P1^4;//数据口
/**********************ds1302初始化*****************************/
void init_ds1302(){
//ds1302初始化
isInit_1302=read_ds1302(0x81); //读出时钟状态
if(isInit_1302&0x80){ //说明没有初始化
write_ds1302(0x8e,0x00); //关闭写保护 以后一直开着
write_ds1302(0x90,0xa5); //辅助电源充电命令 一个二极管 一个2K电阻
write_ds1302(0x80,0x00); //秒 CH置0 开启时钟
write_ds1302(0x82,0x00); //分
write_ds1302(0x84,0x00); //时
write_ds1302(0x86,0x00); //日
write_ds1302(0x88,0x01); //月
write_ds1302(0x8a,0x01); //星期
write_ds1302(0x8c,0x17); //年
write_ds1302(0x8e,0x80);
}
}
/**********************ds1302写一个字节数据*****************************/
void write_ds1302_byte(u8 temp){
//ds1302写一个字节数据
u8 i;
for(i=0;i<8;i++){
io=temp&0x01;//将数据放到IO口上
scl=0;//scl为低时准备数据
scl=1;//上升沿写入
temp>>=1;
}
}
/**********************向地址add写入数据datds1302*****************************/
void write_ds1302(u8 add,u8 dat){
//向地址add写入数据dat
rst=0;
scl=0;
rst=1;
write_ds1302_byte(add);
write_ds1302_byte(dat);
scl=1;
rst=0;
}
/**********************ds1302读数据*****************************/
u8 read_ds1302(u8 add)
{
//ds1302读数据
u8 i,dat;
rst=0;
scl=0;
rst=1;
write_ds1302_byte(add);//首先写入要读的数据处的地址
for(i=0;i<8;i++){
if(io==1){
dat|=0x80;
}
scl=1;
scl=0;//下降沿读取数据
dat>>=1;
}
scl=1;
rst=0;
return dat;
}
/**********************ds1302读时间*****************************/
void read_time(u8 *s){
u8 i;
u8 ucAddr = 0x81;
for (i=0;i<7;i++){
s[i] = read_ds1302(ucAddr);//格式为: 秒 分 时 日 月 星期 年
ucAddr += 2;
}
}
/**********************ds1302设定时间*****************************/
void set_time(u8 *pSecDa){
//设定时间
u8 i;
u8 ucAddr = 0x80;
write_ds1302(0x8e,0x00);
for(i =7;i>0;i--){
write_ds1302(ucAddr,*pSecDa); //秒 分 时 日 月 星期 年
pSecDa++;
ucAddr+=2;
}
write_ds1302(0x8e,0x80);
}
下面是按钮赋值代码，代码运行时，光标移动的按键更改值都正常，就是更新不了时间
void key_scan()
{
int i;
u8 code tips1[]="SET SUCCESS";//闹钟设置成功的提示
u8 code tips2[]="CANCEL SUCCESS";//取消闹钟的提示
if(key_dat==4){//检测是否按下
delay(10);//消抖
if(LCD_cnt)
{//再次检测是否按下
LCD_cnt=0;
while(!key_set_time);//检测是否松开
delay(10);//延时消抖
while(!key_set_time);//再次检测是否松开
if(alarm==0)
{//当没有显示闹钟界面时才显示时间设定
count++;
write_ds1302(0x80,0x80);//让时钟停止
if(count==8){//继续走时，说明时间已经设定好了
Lcd1602_WriteCom(0x0c);//让光标消失
LED1=1;
set_time(getTimebuf);//写入新的时间
write_ds1302(0x80,0x00);//让时钟继续
count=0;BE_cnt=500; //蜂鸣器
return;
}
LED1=0;
switch(count){
case 1:
Lcd1602_WriteCom(0x80+0x40+7);//在秒的位置
break;
case 2:
Lcd1602_WriteCom(0x80+0x40+4);//在分的位置
break;
case 3:
Lcd1602_WriteCom(0x80+0x40+1);//在时的位置
break;
case 4:
Lcd1602_WriteCom(0x80+14);//在星期的位置
break;
case 5:
Lcd1602_WriteCom(0x80+10);//在日的位置
break;
case 6:
Lcd1602_WriteCom(0x80+7);//在月的位置
break;
case 7:
Lcd1602_WriteCom(0x80+4);//在年的位置
break;
}
Lcd1602_WriteCom(0x0f);//让光标闪烁
}
}
}
if(key_add==0){//检测是否按下
delay(10);//消抖
if(add_LCD)
{//再次检测是否按下
add_LCD=0;
while(!key_add);//检测是否松开
delay(10);//延时消抖
while(!key_add);//再次检测是否松开
if(count!=0)
{
switch(count){
case 1:
//在秒的位置
getTimebuf[0]++;
if(getTimebuf[0]==0x5a){
getTimebuf[0]=0;
}
if(getTimebuf[0]==0x4a){
getTimebuf[0]=0x50;
}
if(getTimebuf[0]==0x3a){
getTimebuf[0]=0x40;
}
if(getTimebuf[0]==0x2a){
getTimebuf[0]=0x30;
}
if(getTimebuf[0]==0x1a){
getTimebuf[0]=0x20;
}
if(getTimebuf[0]==0x0a){
getTimebuf[0]=0x10;
}
time[6]=(getTimebuf[0])/16+48;//格式化时间秒
time[7]=(getTimebuf[0])%16+48;
Lcd1602_WriteCom(0x80+0x40+6);//在秒的位置
Lcd1602_Writedata(time[6]);
Lcd1602_WriteCom(0x80+0x40+7);//在秒的位置
Lcd1602_Writedata(time[7]);
Lcd1602_WriteCom(0x80+0x40+7);//让光标在秒的位置闪烁
break;
case 2:
//在分的位置
getTimebuf[1]++;
if(getTimebuf[1]==0x5a){
getTimebuf[1]=0;
}
if(getTimebuf[1]==0x4a){
getTimebuf[1]=0x50;
}
if(getTimebuf[1]==0x3a){
getTimebuf[1]=0x40;
}
if(getTimebuf[1]==0x2a){
getTimebuf[1]=0x30;
}
if(getTimebuf[1]==0x1a){
getTimebuf[1]=0x20;
}
if(getTimebuf[1]==0x0a){
getTimebuf[1]=0x10;
}
time[3]=(getTimebuf[1])/16+48;//格式化时间分
time[4]=(getTimebuf[1])%16+48;
Lcd1602_WriteCom(0x80+0x40+3);//在分的位置
Lcd1602_Writedata(time[3]);
Lcd1602_WriteCom(0x80+0x40+4);//在分的位置
Lcd1602_Writedata(time[4]);
Lcd1602_WriteCom(0x80+0x40+4);//让光标在分的位置闪烁
break;
case 3:
//在时的位置
getTimebuf[2]++;
if(getTimebuf[2]==0x24){
getTimebuf[2]=0;
}
if(getTimebuf[2]==0x1a){
getTimebuf[2]=0x20;
}
if(getTimebuf[2]==0x0a){
getTimebuf[2]=0x10;
}
time[0]=(getTimebuf[2])/16+48;//格式化时间小时
time[1]=(getTimebuf[2])%16+48;
Lcd1602_WriteCom(0x80+0x40+0);//在小时的位置
Lcd1602_Writedata(time[0]);
Lcd1602_WriteCom(0x80+0x40+1);
Lcd1602_Writedata(time[1]);
Lcd1602_WriteCom(0x80+0x40+1);
break;
case 4:
//在星期的位置
getTimebuf[5]++;
if(getTimebuf[5]==0x08){
getTimebuf[5]=0x01;
}
if((getTimebuf[5]%10)*3==21){//轮完了 重新开始
week[0]=weeklist[0];
week[1]=weeklist[1];
week[2]=weeklist[2];
}else{
week[0]=weeklist[(getTimebuf[5]%10)*3];//格式化星期
week[1]=weeklist[(getTimebuf[5]%10)*3+1];
week[2]=weeklist[(getTimebuf[5]%10)*3+2];
}
Lcd1602_WriteCom(0x80+12);
Lcd1602_Writedata(week[0]);
Lcd1602_WriteCom(0x80+13);
Lcd1602_Writedata(week[1]);
Lcd1602_WriteCom(0x80+14);
Lcd1602_Writedata(week[2]);
Lcd1602_WriteCom(0x80+14);
break;
case 5:
//在日的位置
getTimebuf[3]++;
if(getTimebuf[3]==0x32){
getTimebuf[3]=0x01;
}
if(getTimebuf[3]==0x2a){
getTimebuf[3]=0x30;
}
if(getTimebuf[3]==0x1a){
getTimebuf[3]=0x20;
}
if(getTimebuf[3]==0x0a){
getTimebuf[3]=0x10;
}
date[8]=(getTimebuf[3])/16+48;
date[9]=(getTimebuf[3])%16+48;
Lcd1602_WriteCom(0x80+9);
Lcd1602_Writedata(date[8]);
Lcd1602_WriteCom(0x80+10);
Lcd1602_Writedata(date[9]);
Lcd1602_WriteCom(0x80+10);
break;
case 6:
//在月的位置
getTimebuf[4]++;
if(getTimebuf[4]==0x13){
getTimebuf[4]=0x01;
}
if(getTimebuf[4]==0x0a){
getTimebuf[4]=0x10;
}
date[5]=(getTimebuf[4])/16+48;
date[6]=(getTimebuf[4])%16+48;
Lcd1602_WriteCom(0x80+6);
Lcd1602_Writedata(date[5]);
Lcd1602_WriteCom(0x80+7);
Lcd1602_Writedata(date[6]);
Lcd1602_WriteCom(0x80+7);
break;
case 7:
//在年的位置
getTimebuf[6]++;
if(getTimebuf[6]==0x9a){
getTimebuf[6]=0x00;
}
if(getTimebuf[6]==0x8a){
getTimebuf[6]=0x90;
}
if(getTimebuf[6]==0x7a){
getTimebuf[6]=0x80;
}
if(getTimebuf[6]==0x6a){
getTimebuf[6]=0x70;
}
if(getTimebuf[6]==0x5a){
getTimebuf[6]=0x60;
}
if(getTimebuf[6]==0x4a){
getTimebuf[6]=0x50;
}
if(getTimebuf[6]==0x3a){
getTimebuf[6]=0x40;
}
if(getTimebuf[6]==0x2a){
getTimebuf[6]=0x30;
}
if(getTimebuf[6]==0x1a){
getTimebuf[6]=0x20;
}
if(getTimebuf[6]==0x0a){
getTimebuf[6]=0x10;
}
date[2]=(getTimebuf[6])/16+48;
date[3]=(getTimebuf[6])%16+48;
Lcd1602_WriteCom(0x80+3);
Lcd1602_Writedata(date[2]);
Lcd1602_WriteCom(0x80+4);
Lcd1602_Writedata(date[3]);
Lcd1602_WriteCom(0x80+4);
break;
}
}
}
}
if(key_minus==0){//检测是否按下
delay(10);//消抖
if(minus_LCD){//再次检测是否按下
while(!key_minus);//检测是否松开
delay(10);//延时消抖
while(!key_minus);//再次检测是否松开
minus_LCD =0;
if(count!=0){
switch(count){
case 1:
//在秒的位置
getTimebuf[0]--;
if(getTimebuf[0]==0xff){
getTimebuf[0]=0x59;
}
if(getTimebuf[0]==0x4f){
getTimebuf[0]=0x49;
}
if(getTimebuf[0]==0x3f){
getTimebuf[0]=0x39;
}
if(getTimebuf[0]==0x2f){
getTimebuf[0]=0x29;
}
if(getTimebuf[0]==0x1f){
getTimebuf[0]=0x19;
}
if(getTimebuf[0]==0x0f){
getTimebuf[0]=0x09;
}
time[6]=(getTimebuf[0])/16+48;//格式化时间秒
time[7]=(getTimebuf[0])%16+48;
Lcd1602_WriteCom(0x80+0x40+6);//在秒的位置
Lcd1602_Writedata(time[6]);
Lcd1602_WriteCom(0x80+0x40+7);//在秒的位置
Lcd1602_Writedata(time[7]);
Lcd1602_WriteCom(0x80+0x40+7);//让光标在秒的位置闪烁
break;
case 2:
//在分的位置
getTimebuf[1]--;
if(getTimebuf[1]==0xff){
getTimebuf[1]=0x59;
}
if(getTimebuf[1]==0x4f){
getTimebuf[1]=0x49;
}
if(getTimebuf[1]==0x3f){
getTimebuf[1]=0x39;
}
if(getTimebuf[1]==0x2f){
getTimebuf[1]=0x29;
}
if(getTimebuf[1]==0x1f){
getTimebuf[1]=0x19;
}
if(getTimebuf[1]==0x0f){
getTimebuf[1]=0x09;
}
time[3]=(getTimebuf[1])/16+48;//格式化时间分
time[4]=(getTimebuf[1])%16+48;
Lcd1602_WriteCom(0x80+0x40+3);//在分的位置
Lcd1602_Writedata(time[3]);
Lcd1602_WriteCom(0x80+0x40+4);//在分的位置
Lcd1602_Writedata(time[4]);
Lcd1602_WriteCom(0x80+0x40+4);//让光标在分的位置闪烁
break;
case 3:
//在时的位置
getTimebuf[2]--;
if(getTimebuf[2]==0xff){
getTimebuf[2]=0x23;
}
if(getTimebuf[2]==0x1f){
getTimebuf[2]=0x19;
}
if(getTimebuf[2]==0x0f){
getTimebuf[2]=0x09;
}
time[0]=(getTimebuf[2])/16+48;//格式化时间小时
time[1]=(getTimebuf[2])%16+48;
Lcd1602_WriteCom(0x80+0x40+0);//在小时的位置
Lcd1602_Writedata(time[0]);
Lcd1602_WriteCom(0x80+0x40+1);
Lcd1602_Writedata(time[1]);
Lcd1602_WriteCom(0x80+0x40+1);
break;
case 4:
//在星期的位置
getTimebuf[5]--;
if(getTimebuf[5]==0){
getTimebuf[5]=0x07;
}
if((getTimebuf[5]%10)*3==21){//轮完了 重新开始
week[0]=weeklist[0];
week[1]=weeklist[1];
week[2]=weeklist[2];
}else{
week[0]=weeklist[(getTimebuf[5]%10)*3];//格式化星期
week[1]=weeklist[(getTimebuf[5]%10)*3+1];
week[2]=weeklist[(getTimebuf[5]%10)*3+2];
}
Lcd1602_WriteCom(0x80+12);
Lcd1602_Writedata(week[0]);
Lcd1602_WriteCom(0x80+13);
Lcd1602_Writedata(week[1]);
Lcd1602_WriteCom(0x80+14);
Lcd1602_Writedata(week[2]);
Lcd1602_WriteCom(0x80+14);
break;
case 5:
//在日的位置
getTimebuf[3]--;
if(getTimebuf[3]==0){
getTimebuf[3]=0x31;
}
if(getTimebuf[3]==0x2f){
getTimebuf[3]=0x29;
}
if(getTimebuf[3]==0x1f){
getTimebuf[3]=0x19;
}
if(getTimebuf[3]==0x0f){
getTimebuf[3]=0x09;
}
date[8]=(getTimebuf[3])/16+48;
date[9]=(getTimebuf[3])%16+48;
Lcd1602_WriteCom(0x80+9);
Lcd1602_Writedata(date[8]);
Lcd1602_WriteCom(0x80+10);
Lcd1602_Writedata(date[9]);
Lcd1602_WriteCom(0x80+10);
break;
case 6:
//在月的位置
getTimebuf[4]--;
if(getTimebuf[4]==0){
getTimebuf[4]=0x12;
}
if(getTimebuf[4]==0x0f){
getTimebuf[4]=0x09;
}
date[5]=(getTimebuf[4])/16+48;
date[6]=(getTimebuf[4])%16+48;
Lcd1602_WriteCom(0x80+6);
Lcd1602_Writedata(date[5]);
Lcd1602_WriteCom(0x80+7);
Lcd1602_Writedata(date[6]);
Lcd1602_WriteCom(0x80+7);
break;
case 7:
//在年的位置
getTimebuf[6]--;
if(getTimebuf[6]==0xff){
getTimebuf[6]=0x99;
}
if(getTimebuf[6]==0x8f){
getTimebuf[6]=0x89;
}
if(getTimebuf[6]==0x7f){
getTimebuf[6]=0x79;
}
if(getTimebuf[6]==0x6f){
getTimebuf[6]=0x69;
}
if(getTimebuf[6]==0x5f){
getTimebuf[6]=0x59;
}
if(getTimebuf[6]==0x4f){
getTimebuf[6]=0x49;
}
if(getTimebuf[6]==0x3f){
getTimebuf[6]=0x39;
}
if(getTimebuf[6]==0x2f){
getTimebuf[6]=0x29;
}
if(getTimebuf[6]==0x1f){
getTimebuf[6]=0x19;
}
if(getTimebuf[6]==0x0f){
getTimebuf[6]=0x09;
}
date[2]=(getTimebuf[6])/16+48;
date[3]=(getTimebuf[6])%16+48;
Lcd1602_WriteCom(0x80+3);
Lcd1602_Writedata(date[2]);
Lcd1602_WriteCom(0x80+4);
Lcd1602_Writedata(date[3]);
Lcd1602_WriteCom(0x80+4);
break;
}
}
}
}
}
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