基于ds1302及ds1624的时钟温度计

#include <reg51.h> #include <INTRINS.H> #define uchar unsigned char #define uint unsigned int #define display8 0xfe //数码管1从左至右 #define display7 0xfd //数码管2从左至右 #define display6 0xfb //数码管3从左至右 #define display5 0xf7 //数码管4从左至右 #define display4 0xef //数码管5从左至右 #define display3 0xdf //数码管6从左至右 #define display2 0xbf //数码管7从左至右 #define display1 0x7f //数码管8从左至右 //===以下IO定义请根据您硬件的连接修改=== sbit T_RST=P1^4;//ds1302-5 sbit T_IO=P1^3;//ds1302-6 sbit T_CLK=P1^2;//ds1302-7 bit dula;//数码管段锁存器,wuyong bit wela;//数码管位锁存器,wuyong bit led;//LED流水灯锁存器,wuyong bit JI;//wuyong sbit ACC0=ACC^0; sbit ACC7=ACC^7; sbit up=P3^6; sbit down=P3^5; sbit set=P3^7; sbit did=P1^7; sbit sda=P1^6; sbit scl=P1^5; sbit SDA_TEMP=P1^0; sbit SCL_TEMP=P1^1; unsigned char eepromdata[8]; unsigned char temperdata[2]; unsigned char timecount; unsigned char displaycount; bit secondflag=0; unsigned char secondcount=0; unsigned char retn; unsigned int result; unsigned char x; unsigned int k; unsigned int ks; uchar a,b,clock_ss,clock_sg,clock_fs,clock_fg,clock_ms,clock_mg,clock_mg_temp; uchar temp_disp=0; unsigned char displaybuffer[4]; int tempdf,hour,mie,sei,c,nhour,nmie,shour,smie; uchar clk_time[3]; //秒，分，时寄存器初始值 code uchar ledmap[]={ 0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8, 0x80, 0x90, 0x88, 0x83, 0xC6, 0xa1 ,0x86 ,0x8e, 0xff}; //数码管段码 unsigned char code dotcode[32]={0,3,6,9,12,16,19,22,25,28,31,34,38,41,44,48,50,53,56,59,63,66,69,72,75,78,81,84,88,91,94,97}; void delay_TEMP(void); void delay10ms(void); void i_start(void); void i_stop(void); void i_init(void); void i_ack(void); bit i_clock(void); bit i_send(unsigned char i_data); unsigned char i_receive(void); bit start_temperature_T(void); bit read_temperature_T(unsigned char *p); void delay1() { ;; } void delay_TEMP(void){_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();} void delay10ms(void){unsigned int i;for(i=0;i<1000;i++){delay_TEMP();}} void i_start(void){SCL_TEMP=1;delay_TEMP();SDA_TEMP=0;delay_TEMP();SCL_TEMP=0;delay_TEMP();} void i_stop(void) {SDA_TEMP=0; delay_TEMP(); SCL_TEMP=1; delay_TEMP(); SDA_TEMP=1; delay_TEMP(); SCL_TEMP=0; delay_TEMP();} void i_init(void) {SCL_TEMP=0;i_stop();} void t0(void) interrupt 1 using 0 //T0用于定时1s时间到 {secondcount++;if(secondcount==100){secondcount=0;secondflag=1;} TH0=55536/256;TL0=55536%256;} void i_ack(void){SDA_TEMP=0;i_clock();SDA_TEMP=1;} bit i_clock(void) {bit sample; SCL_TEMP=1; delay_TEMP(); sample=SDA_TEMP; _nop_();_nop_(); SCL_TEMP=0; delay_TEMP(); return(sample);} bit i_send(unsigned char i_data) {unsigned char i; for(i=0;i<8;i++){SDA_TEMP=(bit)(i_data & 0x80); i_data=i_data<<1; i_clock();} SDA_TEMP=1; return(~i_clock());} unsigned char i_receive(void) {unsigned char i_data=0; unsigned char i; for(i=0;i<8;i++){i_data*=2;if(i_clock()) i_data++;}return(i_data);} bit start_temperature_T(void) {i_start(); if(i_send(0x90)) {if(i_send(0xee)) {i_stop();delay_TEMP();return(1);} else{i_stop(); delay_TEMP();return(0);}} else{i_stop();delay_TEMP();return(0);}} bit read_temperature_T(unsigned char *p) {i_start(); if(i_send(0x90)) { if(i_send(0xaa)){ i_start(); if(i_send(0x91)) {*(p+1)=i_receive(); i_ack(); *p=i_receive(); i_stop(); delay_TEMP(); return(1);} else{i_stop();delay_TEMP();return(0);}} else{i_stop();delay_TEMP();return(0);}} else{i_stop();delay_TEMP();return(0);}} void start() //开始信号 { sda=1; delay1(); scl=1; delay1(); sda=0; delay1(); } void stop() //停止 { sda=0; delay1(); scl=1; delay1(); sda=1; delay1(); } void respons() //应答 { uchar i; scl=1; delay1(); while((sda==1)&&(i<250))i++; scl=0; delay1(); } /******************初始化***************************/ void init() { sda=1; delay1(); scl=1; delay1(); } /******************2401写1字节***************************/ void writ_byte(uchar date) { uchar i,temp; temp=date; for(i=0;i<8;i++) { temp=temp<<1; scl=0; delay1(); sda=CY; delay1(); scl=1; delay1(); // scl=0; // delay(); } scl=0; delay1(); sda=1; delay1(); } /******************2401读1字节�***************************/ uchar rea_byte() { uchar i,k; scl=0; delay1(); sda=1; delay1(); for(i=0;i<8;i++) { scl=1; delay1(); k=(k<<1)|sda; scl=0; delay1(); } return k; } /******************24C01:写入数据（先送地址，再写数据）***************************/ void write_add(uchar address,uchar date) { start(); writ_byte(0xa0); respons(); writ_byte(address); respons(); writ_byte(date); respons(); stop(); } /******************24c01:读入数据（先送地址，再读数据）***************************/ uchar read_add(uchar address) { uchar date; start(); writ_byte(0xa0); respons(); writ_byte(address); respons(); start(); writ_byte(0xa1); respons(); date=rea_byte(); stop(); return date; } /******************DS1302：写入操作(上升沿)*********************/ void write_byte(uchar da) { uchar i; ACC=da; for(i=8;i>0;i--) { T_IO=ACC0; T_CLK=0; T_CLK=1; ACC=ACC>>1; } } /******************DS1302：读取操作（下降沿）*****************/ uchar read_byte(void) { uchar i; for(i=0;i<8;i++) { ACC=ACC>>1; T_CLK = 1; T_CLK = 0; ACC7 = T_IO; } return(ACC); } /******************DS1302:写入数据（先送地址，再写数据）***************************/ void write_1302(uchar addr,uchar da) { T_RST=0; //停止工作 T_CLK=0; T_RST=1; //重新工作 write_byte(addr); //写入地址 write_byte(da); T_RST=0; T_CLK=1; } /******************DS1302:读取数据（先送地址，再读数据）**************************/ uchar read_1302(uchar addr) { uchar temp; T_RST=0; //停止工作 T_CLK=0; T_RST=1; //重新工作 write_byte(addr); //写入地址 temp=read_byte(); T_RST=0; T_CLK=1; //停止工作 return(temp); } /***********************延时程序=a*1ms**************************************/ void delay(uchar a) { uchar i; while(a-- !=0) { for(i=0;i<125;i++); } } void fn()//喇叭 { did=0; delay(20); did=1; delay(20); did=0; /*delay(120); did=1; delay(120); did=0; delay(120); did=1; delay(120); did=0; delay(320); did=1; delay(400);*/ } /***********************显示程序**********************************************/ /* DS1302秒，分，时寄存器是BCD码形式： 用16求商和余进行"高4位"和"低4位"分离 */ /****************************************************************************/ void led_disp() { uchar cant1,cant2; if(b==0) {cant1=0;cant2=0; clock_mg_temp=clock_mg;//保存尚一次的秒钟 clock_ms=clk_time[0]/ 16; clock_mg=clk_time[0]%16; clock_fs=clk_time[1]/ 16; clock_fg=clk_time[1]%16; mie=clock_fs*10+ clock_fg; clock_ss=clk_time[2]/ 16; clock_sg=clk_time[2]%16; //BCD*to*10 hour=clock_ss*10+ clock_sg; } if(b==1) { cant1++; cant2=0; clock_ss=hour/ 10; clock_sg=hour%10; clock_fs=mie/ 10; clock_fg=mie%10; clock_ms=sei/10; clock_mg=sei%10; } if(b==2) { cant1=0; cant2++; clock_ss=hour/ 10; clock_sg=hour%10; clock_fs=mie/ 10; clock_fg=mie%10; clock_ms=sei/10; clock_mg=sei%10;