答案仅供参考，有错误欢迎指正，非常感谢！！！
文件较多，代码较长，感谢查看！！！
目录
题目分析
main.h
main.c
Init.h
Init.c
SMG.h
SMG.c
DSQ.h
DSQ.c
YanShi.h
YanShi.c
JZKey.h
JZKey.c
ds1302.h
ds1302.c
iic.h
iic.c
LN555.h
LN555.c
题目分析main.h其实这届真题每什么难点，居然连LED都没有，就很舒服。主要还是一个逻辑问题，至于题目难理解的地方倒是没有，而且题目也都说得很清楚了。
直接上代码。
#ifndef __MAIN_H_
#define __MAIN_H_
#define uchar unsigned char
#define uint unsigned int
#include
#include "Init.h"
#include "SMG.h"
#include "DSQ.h"
#include "YanShi.h"
#include "JZKey.h"
#include "ds1302.h"
#include "iic.h"
#include "LN555.h"
void SMG_XianShi();
void ShiJian_JiLu();
#endif #include "main.h"
uchar flag1=0;//定时器1标志位
long int Hz=0;//频率
unsigned int Hz_time=0;//计算频率的时间
uchar DianYa_Date=0;//电压数据
uchar CaiDan=0;//菜单 0：时钟；1：电压；2频率；3：查询
uchar JieMian_ShiJian=0;//时间界面 0；时间显示界面；1：时间设置界面
uchar JieMian_DianYa=0;//电压界面 0：电压测量界面；1：电压阈值设定界面
uchar JieMian_Hz=0;//频率界面 0：频率测量显示界面-频率；1：频率测量显示界面-周期
uchar JieMian_ChaXun=0;//查询界面 0：事件查询界面-事件类型；1：事件查询界面-发生事件
uchar ShiJian_SheZhi_flag=2;//时间设置标志位 0：小时；1：分钟；2：秒钟
uchar ShangXia_flag=1;//电压上下限选择标志位 0：上限VH；1：下限VL
char ShangXian_VH=20;//电压上限
char XiaXian_VL=10;//电压下限
char Shi_temp;//临时的时
char Fen_temp;//临时的分
char Miao_temp;//临时的秒
uint ShanShuo_time=0;//闪烁的时间
uint DianYa;//电压
long int ZhouQi=0;//周期
uchar EEPROM_flag;//EEPROM标志位
uchar ShiJian_shi;//事件发生的时
uchar ShiJian_fen;//事件发生的分
uchar ShiJian_miao;//事件发生的秒
char ShangXian_VH_1=20;//电压上限，确定值
char XiaXian_VL_1=10;//电压下限，确定值
uchar JiLu_flag=1;//记录标志位 0：停止记录；1：允许记录
uchar ShiJian_LeiXing;//事件类型
uchar ADC_flag=1;//ADC采集标志位
void main(){
uchar key_num;
uchar i;
Init_BZ();
SMG_Init();
DSQ_1_Init();
JZKey_Init();
LN555_Init();
DS1302_XieDate(23,59,55);
EEPROM_flag=IIC_EEPROM_GetDate(0x10);
Delay10ms();
if(EEPROM_flag!=1){//第一次上电
IIC_EEPROM_XieDate(0x10,1);
Delay10ms();
for(i=1;i<=6;i++){
IIC_EEPROM_XieDate(0x10+i,100);
Delay10ms();
}
IIC_EEPROM_XieDate(0x20,20);
Delay10ms();
IIC_EEPROM_XieDate(0x21,10);
Delay10ms();
}
else if(EEPROM_flag==1){//多次上电
ShangXian_VH_1=IIC_EEPROM_GetDate(0x20);
Delay10ms();
XiaXian_VL_1=IIC_EEPROM_GetDate(0x21);
Delay10ms();
ShangXian_VH=ShangXian_VH_1;
XiaXian_VL=XiaXian_VL_1;
}
while(1){
//获取时间
EA=0;
DS1302_GetDate();
EA=1;
//采集电压
if(ADC_flag>=1){
ADC_flag=0;
DianYa_Date=IIC_ADC_GetDate(3);
DianYa=((DianYa_Date*1.0)/51.0)*1000;
}
//事件记录
if(((DianYa*1.0)/100.0)>=XiaXian_VL_1&&((DianYa*1.0)/100.0)<=ShangXian_VH_1){//电压在上下限之间
JiLu_flag=1;
}
else if(((DianYa*1.0)/100.0)ShangXian_VH_1){//电压高于上限
if(JiLu_flag){
ShiJian_JiLu();
IIC_EEPROM_XieDate(0x14,1);
Delay10ms();
}
JiLu_flag=0;
}
//获取按键值
key_num=JZKey_GetKeynum();
if(key_num==7){//“时钟”按键
if(JieMian_ShiJian){//从时间设置界面转到时间显示界面
DS1302_XieDate(Shi_temp,Fen_temp,Miao_temp);
}
CaiDan=0;
JieMian_ShiJian=0;//时间显示界面
ShiJian_SheZhi_flag=2;
}
else if(key_num==6){//“电压测量”按键
if(JieMian_DianYa){//从电压阈值设定界面转到电压测量界面
ShangXian_VH_1=ShangXian_VH;
XiaXian_VL_1=XiaXian_VL;
IIC_EEPROM_XieDate(0x20,ShangXian_VH_1);
Delay10ms();
IIC_EEPROM_XieDate(0x21,XiaXian_VL_1);
Delay10ms();
}
CaiDan=1;
JieMian_DianYa=0;//电压测量界面
ShangXia_flag=1;
}
else if(key_num==5){//“频率测量”按键
CaiDan=2;
JieMian_Hz=0;//频率测量显示界面-频率
}
else if(key_num==9){//“查询”按键
CaiDan=3;
JieMian_ChaXun=0;//事件查询界面-事件类型
ShiJian_LeiXing=IIC_EEPROM_GetDate(0x14);
Delay10ms();
}
else if(key_num==4){//功能
switch(CaiDan){
case 0:{//时钟
if(JieMian_ShiJian==0){//从时间显示界面切换到时间设置界面
Shi_temp=shi;
Fen_temp=fen;
Miao_temp=miao;
}
JieMian_ShiJian=1;//时间设置界面
ShiJian_SheZhi_flag++;
ShiJian_SheZhi_flag=ShiJian_SheZhi_flag%3;
break;
}
case 1:{//电压
JieMian_DianYa=1;//电压阈值设定界面
ShangXia_flag++;
ShangXia_flag=ShangXia_flag%2;
break;
}
case 2:{//频率
JieMian_Hz++;
JieMian_Hz=JieMian_Hz%2;
break;
}
case 3:{//查询
JieMian_ChaXun++;
JieMian_ChaXun=JieMian_ChaXun%2;
if(JieMian_ChaXun){
ShiJian_shi=IIC_EEPROM_GetDate(0x11);
Delay10ms();
ShiJian_fen=IIC_EEPROM_GetDate(0x12);
Delay10ms();
ShiJian_miao=IIC_EEPROM_GetDate(0x13);
Delay10ms();
ShiJian_LeiXing=IIC_EEPROM_GetDate(0x14);
Delay10ms();
}
break;
}
}
}
else if(key_num==11){//加
switch(CaiDan){
case 0:{//时钟
if(JieMian_ShiJian){//位于时间设置界面
switch(ShiJian_SheZhi_flag){
case 0:{//选择了时
Shi_temp++;
if(Shi_temp>=23){
Shi_temp=23;
}
break;
}
case 1:{//选择了分
Fen_temp++;
if(Fen_temp>=59){
Fen_temp=59;
}
break;
}
case 2:{//选择了秒
Miao_temp++;
if(Miao_temp>=59){
Miao_temp=59;
}
break;
}
}
}
break;
}
case 1:{//电压
if(JieMian_DianYa){//位于电压阈值设定界面
if(ShangXia_flag){//设置下限
XiaXian_VL=XiaXian_VL+5;
if(XiaXian_VL>ShangXian_VH){//下限超过了上限
XiaXian_VL=XiaXian_VL-5;
}
}
else{//设置上限
ShangXian_VH=ShangXian_VH+5;
if(ShangXian_VH>=95){//最大是9500mV
ShangXian_VH=95;
}
}
}
break;
}
}
}
else if(key_num==10){//减
switch(CaiDan){
case 0:{//时钟
if(JieMian_ShiJian){//位于时间设置界面
switch(ShiJian_SheZhi_flag){
case 0:{//选择了时
Shi_temp--;
if(Shi_temp<=0){
Shi_temp=0;
}
break;
}
case 1:{//选择了分
Fen_temp--;
if(Fen_temp<=0){
Fen_temp=0;
}
break;
}
case 2:{//选择了秒
Miao_temp--;
if(Miao_temp<=0){
Miao_temp=0;
}
break;
}
}
}
break;
}
case 1:{//电压
if(JieMian_DianYa){//位于电压阈值设定界面
if(ShangXia_flag){//设置下限
XiaXian_VL=XiaXian_VL-5;
if(XiaXian_VL<=0){//下限小于0
XiaXian_VL=0;
}
}
else{//设置上限
ShangXian_VH=ShangXian_VH-5;
if(ShangXian_VH=1000){
Hz_time=0;
Hz=((unsigned int)TH0<<8)|(unsigned int)TL0;
ZhouQi=(1.0/Hz)*1000000;
TH0=0;
TL0=0;
}
//闪烁时间计算
if((CaiDan==0&&JieMian_ShiJian==1)||(CaiDan==1&&JieMian_DianYa==1)){//位于时间设置界面或者位于电压阈值设定界面
ShanShuo_time++;
}
else{
ShanShuo_time=0;
}
if(ShanShuo_time>=2000){
ShanShuo_time=0;
}
if(flag1>=1){
flag1=0;
SMG_XianShi();
}
}
void SMG_XianShi(){//数码管显示
switch(CaiDan){
case 0:{//时钟
if(JieMian_ShiJian){//位于时间设置界面
if(ShanShuo_time>0&&ShanShuo_time<=1000){//亮
SMG_Show(Shi_temp/10,Shi_temp%10,17,Fen_temp/10,Fen_temp%10,17,Miao_temp/10,Miao_temp%10);
}
else if(ShanShuo_time>1000&&ShanShuo_time<=2000){//灭
switch(ShiJian_SheZhi_flag){
case 0:{//选择了时
SMG_Show(16,16,17,Fen_temp/10,Fen_temp%10,17,Miao_temp/10,Miao_temp%10);//时，灭
break;
}
case 1:{//选择了分
SMG_Show(Shi_temp/10,Shi_temp%10,17,16,16,17,Miao_temp/10,Miao_temp%10);//分，灭
break;
}
case 2:{//选择了秒
SMG_Show(Shi_temp/10,Shi_temp%10,17,Fen_temp/10,Fen_temp%10,17,16,16);//秒。灭
break;
}
}
}
}
else{//位于时间显示界面
SMG_Show(shi/10,shi%10,17,fen/10,fen%10,17,miao/10,miao%10);
}
break;
}
case 1:{//电压
if(JieMian_DianYa){//电压阈值设定界面
if(ShanShuo_time>0&&ShanShuo_time<=1000){//亮
SMG_Show(ShangXian_VH/10,ShangXian_VH%10,0,0,XiaXian_VL/10,XiaXian_VL%10,0,0);
}
else if(ShanShuo_time>1000&&ShanShuo_time<=2000){//灭
if(ShangXia_flag){//设置下限显示
SMG_Show(ShangXian_VH/10,ShangXian_VH%10,0,0,16,16,16,16);
}
else{//设置上限显示
SMG_Show(16,16,16,16,XiaXian_VL/10,XiaXian_VL%10,0,0);
}
}
}
else{//电压测量界面
if(DianYa>=1000){
SMG_Show(17,1,17,16,DianYa/1000,(DianYa/100)%10,(DianYa/10)%10,DianYa%10);
}
else if(DianYa>=100){
SMG_Show(17,1,17,16,16,DianYa/100,(DianYa/10)%10,DianYa%10);
}
else if(DianYa>=10){
SMG_Show(17,1,17,16,16,16,DianYa/10,DianYa%10);
}
else if(DianYa>=0){
SMG_Show(17,1,17,16,16,16,16,DianYa);
}
}
break;
}
case 2:{//频率
if(JieMian_Hz){//频率测量显示界面-周期
SMG_Show(17,2,17,ZhouQi/10000,(ZhouQi/1000)%10,(ZhouQi/100)%10,(ZhouQi/10)%10,ZhouQi%10);
}
else{//频率测量显示界面-频率
SMG_Show(17,2,17,Hz/10000,(Hz/1000)%10,(Hz/100)%10,(Hz/10)%10,Hz%10);
}
break;
}
case 3:{//查询
if(JieMian_ChaXun){//事件查询界面-发生时间
SMG_Show(ShiJian_shi/10,ShiJian_shi%10,17,ShiJian_fen/10,ShiJian_fen%10,17,ShiJian_miao/10,ShiJian_miao%10);
}
else{//事件查询界面-事件类型
SMG_Show(16,16,16,16,16,16,0,ShiJian_LeiXing);
}
break;
}
}
}
void ShiJian_JiLu(){//事件记录
IIC_EEPROM_XieDate(0x11,shi);
Delay10ms();
IIC_EEPROM_XieDate(0x12,fen);
Delay10ms();
IIC_EEPROM_XieDate(0x13,miao);
Delay10ms();
IIC_EEPROM_XieDate(0x15,ShangXian_VH_1);
Delay10ms();
IIC_EEPROM_XieDate(0x16,XiaXian_VL_1);
Delay10ms();
} #ifndef __INIT_H_
#define __INIT_H_
#include
void Init_BZ();
#endif #include "Init.h"
void Init_BZ(){
P2=(P2&0x1f)|0xa0;
P0=0x00;
P2=(P2&0x1f)|0x80;
P0=0xff;
}#ifndef __SMG_H_
#define __SMG_H_
#include
void SMG_Init();
void SMG_Show(unsigned char n1,n2,n3,n4,n5,n6,n7,n8);
#endif #include "SMG.h"
unsigned char code SMG_ZK[]={ //????
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x77,0x7C,0x39,0x5E,0x79,0x71,
//black - H J K L N o P U t G Q r M y
0x00,0x40,0x76,0x1E,0x70,0x38,0x37,0x5C,0x73,0x3E,0x78,0x3d,0x67,0x50,0x37,0x6e,
0xBF,0x86,0xDB,0xCF,0xE6,0xED,0xFD,0x87,0xFF,0xEF,0x46}; //0. 1. 2. 3. 4. 5. 6. 7. 8. 9. -1
void SMG_Init(){
P2=(P2&0x1f)|0xc0;
P0=0xff;
P2=(P2&0x1f)|0xe0;
P0=0xff;
}
void SMG_Show(unsigned char n1,n2,n3,n4,n5,n6,n7,n8){
static unsigned char i=0;
i++;
i=i%8;
P2=(P2&0x1f)|0xc0;
switch(i){
case 1:{
P0=0x01;
P2=(P2&0x1f)|0xe0;
P0=~SMG_ZK[n1];
break;
}
case 2:{
P0=0x02;
P2=(P2&0x1f)|0xe0;
P0=~SMG_ZK[n2];
break;
}
case 3:{
P0=0x04;
P2=(P2&0x1f)|0xe0;
P0=~SMG_ZK[n3];
break;
}
case 4:{
P0=0x08;
P2=(P2&0x1f)|0xe0;
P0=~SMG_ZK[n4];
break;
}
case 5:{
P0=0x10;
P2=(P2&0x1f)|0xe0;
P0=~SMG_ZK[n5];
break;
}
case 6:{
P0=0x20;
P2=(P2&0x1f)|0xe0;
P0=~SMG_ZK[n6];
break;
}
case 7:{
P0=0x40;
P2=(P2&0x1f)|0xe0;
P0=~SMG_ZK[n7];
break;
}
case 0:{
P0=0x80;
P2=(P2&0x1f)|0xe0;
P0=~SMG_ZK[n8];
break;
}
}
P2=(P2&0x1f)|0x00;
}#ifndef __DSQ_H_
#define __DSQ_H_
#include
void DSQ_1_Init();
#endif #include "DSQ.h"
void DSQ_1_Init(){
AUXR |= 0x40; //定时器时钟1T模式
TMOD &= 0x0F; //设置定时器模式
TL1 = 0x20; //设置定时初值
TH1 = 0xD1; //设置定时初值
TF1 = 0; //清除TF1标志
TR1 = 1; //定时器1开始计时
EA=1;
ET1=1;
}#ifndef __YANSHI_H_
#define __YANSHI_H_
#include
#include "intrins.h"
void Delay10ms();
#endif #include "YanShi.h"
void Delay10ms() //@12.000MHz
{
unsigned char i, j;
i = 117;
j = 184;
do
{
while (--j);
} while (--i);
}#ifndef __JZKEY_H_
#define __JZKEY_H_
#include "YanShi.h"
void JZKey_Init();
unsigned char JZKey_GetKeynum();
#endif#include "JZKey.h"
void JZKey_Init(){
P30=1;
P31=1;
P32=1;
P33=1;
P34=0;
P35=0;
P42=0;
P44=0;
}
unsigned char JZKey_GetKeynum(){
unsigned char key_num=0;
if(P30==0){
P30=0;
P34=1;
P35=1;
P42=1;
P44=1;
if(P34==0){
Delay10ms();
if(P34==0){
key_num=19;
}
while(P34==0);
}
else if(P35==0){
Delay10ms();
if(P35==0){
key_num=15;
}
while(P35==0);
}
else if(P42==0){
Delay10ms();
if(P42==0){
key_num=11;
}
while(P42==0);
}
else if(P44==0){
Delay10ms();
if(P44==0){
key_num=7;
}
while(P44==0);
}
}
else if(P31==0){
P31=0;
P34=1;
P35=1;
P42=1;
P44=1;
if(P34==0){
Delay10ms();
if(P34==0){
key_num=18;
}
while(P34==0);
}
else if(P35==0){
Delay10ms();
if(P35==0){
key_num=14;
}
while(P35==0);
}
else if(P42==0){
Delay10ms();
if(P42==0){
key_num=10;
}
while(P42==0);
}
else if(P44==0){
Delay10ms();
if(P44==0){
key_num=6;
}
while(P44==0);
}
}
else if(P32==0){
P32=0;
P34=1;
P35=1;
P42=1;
P44=1;
if(P34==0){
Delay10ms();
if(P34==0){
key_num=17;
}
while(P34==0);
}
else if(P35==0){
Delay10ms();
if(P35==0){
key_num=13;
}
while(P35==0);
}
else if(P42==0){
Delay10ms();
if(P42==0){
key_num=9;
}
while(P42==0);
}
else if(P44==0){
Delay10ms();
if(P44==0){
key_num=5;
}
while(P44==0);
}
}
else if(P33==0){
P33=0;
P34=1;
P35=1;
P42=1;
P44=1;
if(P34==0){
Delay10ms();
if(P34==0){
key_num=16;
}
while(P34==0);
}
else if(P35==0){
Delay10ms();
if(P35==0){
key_num=12;
}
while(P35==0);
}
else if(P42==0){
Delay10ms();
if(P42==0){
key_num=8;
}
while(P42==0);
}
else if(P44==0){
Delay10ms();
if(P44==0){
key_num=4;
}
while(P44==0);
}
}
JZKey_Init();
return key_num;
}#ifndef __DS1302_H
#define __DS1302_H
#include
#include
sbit SCK = P1^7;
sbit SDA1 = P2^3;
sbit RST = P1^3;
extern unsigned char shi,fen,miao;
void Write_Ds1302(unsigned char temp);
void Write_Ds1302_Byte( unsigned char address,unsigned char dat );
unsigned char Read_Ds1302_Byte( unsigned char address );
void DS1302_XieDate(unsigned char h,unsigned char m,unsigned char s);
void DS1302_GetDate();
#endif
#include "ds1302.h"
unsigned char shi,fen,miao;
//写字节
void Write_Ds1302(unsigned char temp)
{
unsigned char i;
for (i=0;i<8;i++)
{
SCK = 0;
SDA1 = temp&0x01;
temp>>=1;
SCK=1;
}
}
//向DS1302寄存器写入数据
void Write_Ds1302_Byte( unsigned char address,unsigned char dat )
{
RST=0; _nop_();
SCK=0; _nop_();
RST=1; _nop_();
Write_Ds1302(address);
Write_Ds1302(dat);
RST=0;
}
//从DS1302寄存器读出数据
unsigned char Read_Ds1302_Byte ( unsigned char address )
{
unsigned char i,temp=0x00;
RST=0; _nop_();
SCK=0; _nop_();
RST=1; _nop_();
Write_Ds1302(address);
for (i=0;i<8;i++)
{
SCK=0;
temp>>=1;
if(SDA1)
temp|=0x80;
SCK=1;
}
RST=0; _nop_();
SCK=0; _nop_();
SCK=1; _nop_();
SDA1=0; _nop_();
SDA1=1; _nop_();
return (temp);
}
void DS1302_XieDate(unsigned char h,unsigned char m,unsigned char s){
h=(h/10)*16+(h%10);
m=(m/10)*16+(m%10);
s=(s/10)*16+(s%10);
Write_Ds1302_Byte(0x8e,0x00);
Write_Ds1302_Byte(0x84,h);
Write_Ds1302_Byte(0x82,m);
Write_Ds1302_Byte(0x80,s);
Write_Ds1302_Byte(0x8e,0x80);
}
void DS1302_GetDate(){
shi=Read_Ds1302_Byte(0x85);
fen=Read_Ds1302_Byte(0x83);
miao=Read_Ds1302_Byte(0x81);
shi=(shi/16)*10+(shi%16);
fen=(fen/16)*10+(fen%16);
miao=(miao/16)*10+(miao%16);
}
#ifndef _IIC_H
#define _IIC_H
#include
#include "intrins.h"
sbit SDA = P2^1;
sbit SCL = P2^0;
void IIC_Start(void);
void IIC_Stop(void);
bit IIC_WaitAck(void);
void IIC_SendAck(bit ackbit);
void IIC_SendByte(unsigned char byt);
unsigned char IIC_RecByte(void);
unsigned char IIC_ADC_GetDate(unsigned char di_zhi);
void IIC_DAC_XieDate(unsigned char date);
void IIC_EEPROM_XieDate(unsigned char di_zhi,unsigned char date);
unsigned char IIC_EEPROM_GetDate(unsigned char di_zhi);
#endif #include "iic.h"
#define DELAY_TIME 5
//I2C总线内部延时函数
void IIC_Delay(unsigned char i)
{
do{_nop_();}
while(i--);
}
//I2C总线启动信号
void IIC_Start(void)
{
SDA = 1;
SCL = 1;
IIC_Delay(DELAY_TIME);
SDA = 0;
IIC_Delay(DELAY_TIME);
SCL = 0;
}
//I2C总线停止信号
void IIC_Stop(void)
{
SDA = 0;
SCL = 1;
IIC_Delay(DELAY_TIME);
SDA = 1;
IIC_Delay(DELAY_TIME);
}
//发送应答或非应答信号
void IIC_SendAck(bit ackbit)
{
SCL = 0;
SDA = ackbit;
IIC_Delay(DELAY_TIME);
SCL = 1;
IIC_Delay(DELAY_TIME);
SCL = 0;
SDA = 1;
IIC_Delay(DELAY_TIME);
}
//等待应答
bit IIC_WaitAck(void)
{
bit ackbit;
SCL = 1;
IIC_Delay(DELAY_TIME);
ackbit = SDA;
SCL = 0;
IIC_Delay(DELAY_TIME);
return ackbit;
}
//I2C总线发送一个字节数据
void IIC_SendByte(unsigned char byt)
{
unsigned char i;
for(i=0; i<8; i++)
{
SCL = 0;
IIC_Delay(DELAY_TIME);
if(byt & 0x80) SDA = 1;
else SDA = 0;
IIC_Delay(DELAY_TIME);
SCL = 1;
byt <<= 1;
IIC_Delay(DELAY_TIME);
}
SCL = 0;
}
//I2C总线接收一个字节数据
unsigned char IIC_RecByte(void)
{
unsigned char i, da;
for(i=0; i<8; i++)
{
SCL = 1;
IIC_Delay(DELAY_TIME);
da <<= 1;
if(SDA) da |= 1;
SCL = 0;
IIC_Delay(DELAY_TIME);
}
return da;
}
unsigned char IIC_ADC_GetDate(unsigned char di_zhi){
unsigned char date;
IIC_Start();
IIC_SendByte(0x90);
IIC_WaitAck();
IIC_SendByte(di_zhi);
IIC_WaitAck();
IIC_Stop();
IIC_Start();
EA=0;
IIC_SendByte(0x91);
//EA=1;
IIC_WaitAck();
//EA=0;
date=IIC_RecByte();
EA=1;
IIC_SendAck(1);
IIC_WaitAck();
IIC_Stop();
return date;
}
void IIC_DAC_XieDate(unsigned char date){
IIC_Start();
IIC_SendByte(0x90);
IIC_WaitAck();
IIC_SendByte(0x40);
IIC_WaitAck();
IIC_SendByte(date);
IIC_WaitAck();
IIC_Stop();
}
void IIC_EEPROM_XieDate(unsigned char di_zhi,unsigned char date){
IIC_Start();
IIC_SendByte(0xa0);
IIC_WaitAck();
IIC_SendByte(di_zhi);
IIC_WaitAck();
IIC_SendByte(date);
IIC_WaitAck();
IIC_Stop();
}
unsigned char IIC_EEPROM_GetDate(unsigned char di_zhi){
unsigned char date;
IIC_Start();
IIC_SendByte(0xa0);
IIC_WaitAck();
IIC_SendByte(di_zhi);
IIC_WaitAck();
IIC_Stop();
IIC_Start();
IIC_SendByte(0xa1);
IIC_WaitAck();
date=IIC_RecByte();
IIC_SendAck(1);
IIC_WaitAck();
IIC_Stop();
return date;
}#ifndef __LN555_H_
#define __LN555_H_
#include
void LN555_Init();
#endif #include "LN555.h"
void LN555_Init(){
TMOD=(TMOD&0xf0)|0x05;
TL0=0;
TH0=0;
TR0=1;
}欢迎分享，转载请注明来源：内存溢出
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