基于51单片机的DS1302+LCD12864+DS18B20小综合.doc

#include#include#define uint unsigned int#define uchar unsigned char#define first_line 0x80#define second_line 0x90#define third_line 0x88#define forth_line 0x98#define sec_addr_pos 0x04#define min_addr_pos 0x02#define hor_addr_pos 0x00#define day_addr_pos 0x05#define mon_addr_pos 0x03#define yer_addr_pos 0x01#define wek_addr_pos 0x02#definesbl_addr_pos 0x04#define Tep_addr_pos 0x05#define Tmp_addr_pos 0x06uchar code line_one=2016年10月31日 ;uchar code line_two=14：22：45 ;uchar code line_three=星期五 - 23 ;uchar str_wek=一二三四五六日;char second,minute,hour,day,week,month,year;uchar key_flag,mode_cnt;uint temperature,symbol;/用于存储DS18B20采集的整个数据uchar DS18B20_H;/用于存储DS18B20数据采集的整数部分uchar DS18B20_L;/用于存储DS18B20数据采集的小数部分uchar init_18B20_fail;sfr LCD_DATA=0x80;sbit LCD_EN=P27;sbit LCD_RS=P26;sbit LCD_RW=P25;sbit DS_CLK=P36;sbit DS_RST=P35;sbit DS_IO=P34;sbit ACC0=ACC0;sbit ACC7=ACC7;sbit key_1=P24;sbit key_2=P23;sbit key_3=P22;sbit DQ=P37; void delay_ms(uint ms);void delay_us(uint us);bit busy(void);void write_command(uchar command);void write_data(uchar dat);void lcd_pos(uchar x,uchar y);void LCD_init(void);void Input_1byte(uchar TD);uchar Output_1byte(void);uchar Read_DS1302(uchar DS_ADD);void write_DS1302(uchar DS_ADD,uchar DS_DATE);void write_time(uchar addr,uchar num);uchar BCD_to_Dec(uchar num);void write_week(uchar num);void write_date(uchar addr,uchar num);uchar readsecond(void);uchar readminute(void);uchar readhour(void);uchar readday(void);uchar readmonth(void);uchar readweek(void);uchar readyear(void);void readtime(void);void DS1302_init(void);void key_scan(void);uchar DS18B20_read_byte(void);void DS18B20_write_byte(uchar byte);uchar DS18B20_Init(void);uint read_temperature(void);void write_temp(uchar temp_h);void write_symbol(uchar addr,uchar symbol);void display_18B20_err(void);void main(void)key_flag=0;second=20;minute=30;hour=10;day=31;week=3;month=12;year=16;LCD_init();/*while(1)write_date(day_addr_pos,day);write_date(mon_addr_pos,month);write_date(yer_addr_pos,year);write_time(sec_addr_pos,second);write_time(min_addr_pos,minute);write_time(hor_addr_pos,hour);write_week(week);*/if(!(Read_DS1302(0x8E)&0x80)DS1302_init();while(1)key_scan();if(key_flag=0)second=Read_DS1302(0x81);write_time(sec_addr_pos,BCD_to_Dec(second);minute=Read_DS1302(0x83);write_time(min_addr_pos,BCD_to_Dec(minute); hour=Read_DS1302(0x85);write_time(hor_addr_pos,BCD_to_Dec(hour);week=Read_DS1302(0x8B);write_week(week); day=Read_DS1302(0x87);write_date(day_addr_pos,BCD_to_Dec(day);month=Read_DS1302(0x89);write_date(mon_addr_pos,BCD_to_Dec(month);year=Read_DS1302(0x8D);write_date(yer_addr_pos,BCD_to_Dec(year);readtime();/读出十进制数，提供给按键进行数据的+/-的处理temperature=read_temperature();init_18B20_fail=DS18B20_Init();if(init_18B20_fail=0)/temperature=read_temperature();if(temperature&0x8000)=0x8000)/判断读取的温度是正温度还是负温度 symbol=0x2D;/write_symbol(0x0A,0x2C);/显示负号temperature=temperature+1;/负温度时处理，原数取反再加1elsesymbol=0xfe;/write_symbol(0x0A,0xfe);/不显示正号/write_symbol(0x0A,symbol);DS18B20_H=(temperature4)&0x7f;/取温度读数的整数部分DS18B20_L=temperature&0x0f;/取温度读数的小数部分write_symbol(sbl_addr_pos,symbol);write_temp(DS18B20_H);elsedisplay_18B20_err();void delay_us(uint us)while(us-);void delay_ms(uint ms)uchar i;while(ms-)for(i=250;i0;i-)_nop_();_nop_();_nop_();_nop_();bit busy(void)bit result;LCD_RS=0;LCD_RW=1;LCD_EN=1;result=(bit)(LCD_DATA&0x80);LCD_EN=0;return result;void write_command(uchar command)while(busy();LCD_RS=0;LCD_RW=0;LCD_EN=1;delay_us(1);LCD_DATA=command;delay_us(1);LCD_EN=0;void write_data(uchar dat)while(busy();LCD_RS=1;LCD_RW=0;LCD_EN=1;delay_us(1);LCD_DATA=dat;delay_us(1);LCD_EN=0;void lcd_pos(uchar x,uchar y)uchar pos;if(x=0)x=0x80;else if(x=1)x=0x90;else if(x=2)x=0x88;else if(x=3)x=0x98;pos=x+y;write_command(pos);void LCD_init(void)uchar i;write_command(0x30);delay_ms(1);write_command(0x30);delay_ms(1);write_command(0x0C);delay_ms(1);write_command(0x01);delay_ms(1);write_command(0x06);delay_ms(1);write_command(first_line); for(i=0;i16;i+) write_data(line_onei); write_command(second_line); for(i=0;i16;i+) write_data(line_twoi); write_command(third_line);for(i=0;i0;i-) DS_IO=ACC0;DS_CLK=1;DS_CLK=0;ACC=ACC1;uchar Output_1byte(void) uchar i; for(i=8;i0;i-) ACC=ACC1; ACC7=DS_IO; DS_CLK=1; DS_CLK=0; return(ACC);uchar Read_DS1302(uchar DS_ADD) uchar DS_INF; DS_RST=0; DS_CLK=0; DS_RST=1; Input_1byte(DS_ADD); DS_INF=Output_1byte(); DS_CLK=1; DS_RST=0; return(DS_INF); void write_DS1302(uchar DS_ADD,uchar DS_DATE) DS_RST=0; DS_CLK=0; DS_RST=1; Input_1byte(DS_ADD); Input_1byte(DS_DATE); DS_CLK=1; DS_RST=0;void DS1302_init(void)second=57;minute=59;hour=23;day=30;month=3;week=5;year=16;write_DS1302(0x8E,0x00);/NWPwrite_DS1302(0x80,(second/10)4|(second%10);write_DS1302(0x82,(minute/10)4|(minute%10);write_DS1302(0x84,(hour/10)4|(hour%10);write_DS1302(0x86,(day/10)4|(day%10);write_DS1302(0x88,(month/10)4|(month%10);write_DS1302(0x8A,(week/10)4|(week%10);write_DS1302(0x8C,(year/10)4;NUM_L=num&0x0f;NUM=(NUM_H*10)+NUM_L;return NUM;void write_week(uchar num)uchar i;switch(num)case 1:write_command(third_line+wek_addr_pos);for(i=0;i2;i+)write_data(str_weki);delay_ms(5);break;case 2:write_command(third_line+wek_addr_pos);for(i=2;i4;i+)write_data(str_weki);delay_ms(5);break;case 3:write_command(third_line+wek_addr_pos);for(i=4;i6;i+)write_data(str_weki);delay_ms(5);break;case 4:write_command(third_line+wek_addr_pos);for(i=6;i8;i+)write_data(str_weki);delay_ms(5);break;case 5:write_command(third_line+wek_addr_pos);for(i=8;i10;i+)write_data(str_weki);delay_ms(5);break;case 6:write_command(third_line+wek_addr_pos);for(i=10;i12;i+)write_data(str_weki);delay_ms(5);break;case 7:write_command(third_line+wek_addr_pos);for(i=12;i4)*10+(dat&0x0f);return second;/*读出分的十进制数*/uchar readminute(void)uchar dat;dat=Read_DS1302(0x83);minute=(dat&0x70)4)*10+(dat&0x0f);return minute;/*读出小时的十进制数*/uchar readhour(void)uchar dat;dat=Read_DS1302(0x85);hour=(dat&0x70)4)*10+(dat&0x0f);return hour;/*读出天的十进制数*/uchar readday(void)uchar dat;dat=Read_DS1302(0x87);day=(dat&0x70)4)*10+(dat&0x0f);return day;/*读出月的十进制数*/uchar readmonth(void)uchar dat;dat=Read_DS1302(0x89);month=(dat&0x70)4)*10+(dat&0x0f);return month;/*读出周的十进制数*/uchar readweek(void)uchar dat;dat=Read_DS1302(0x8b);week=(dat&0x70)4)*10+(dat&0x0f);return week;/*读出年的十进制数*/uchar readyear(void)uchar dat;dat=Read_DS1302(0x8d);year=(dat&0xf0)4)*10+(dat&0x0f);return year;void key_scan(void)if(key_1=0)delay_ms(5);if(key_1=0)while(!key_1);mode_cnt+;key_flag=1;write_DS1302(0x8E,0x00);write_DS1302(0x80,0x80);write_DS1302(0x8E,0x80);if(mode_cnt=8)key_flag=0;mode_cnt=0;write_command(0x0C);write_DS1302(0x8E,0x00);write_DS1302(0x80,0x00);write_DS1302(0x80,(second/10)4|(second%10);write_DS1302(0x82,(minute/10)4|(minute%10);write_DS1302(0x84,(hour/10)4|(hour%10);write_DS1302(0x86,(day/10)4|(day%10);write_DS1302(0x88,(month/10)4|(month%10);write_DS1302(0x8A,(week/10)4|(week%10);write_DS1302(0x8C,(year/10)=30)day=1;/month+;elseif(day=29)day=1;/month+;if(month=4|month=6|month=9|month=11)if(day=31)day=1;/month+;write_date(day_addr_pos,day);delay_ms(5);write_command(first_line+day_addr_pos);delay_ms(5);break;case 2:month+;if(month=13)month=1;write_date(mon_addr_pos,month);delay_ms(5);write_command(first_line+mon_addr_pos);delay_ms(5);break;case 1:year+;if(year=100)year=0;write_date(yer_addr_pos,year);delay_ms(5);write_command(first_line+yer_addr_pos);delay_ms(5);break;if(key_3=0)delay_ms(5);if(key_3=0)while(!key_3);switch(mode_cnt)case 6:second-;if(second0)second=59;write_time(sec_addr_pos,second);delay_ms(5);/write_command(second_line+11);write_command(second_line+sec_addr_pos);delay_ms(5);break;case 5:minute-;if(minute0)minute=59;write_time(min_addr_pos,minute);delay_ms(5);/write_command(second_line+8);write_command(second_line+min_addr_pos);delay_ms(5);break;case 4:hour-;if(hour0)hour=23;write_time(hor_addr_pos,hour);delay_ms(5);/write_command(second_line+5);write_command(second_line+hor_addr_pos);delay_ms(5);break;case 7:week-;if(week=0)week=7;write_week(week);delay_ms(5);write_command(third_line+wek_addr_pos);delay_ms(5);break;case 3:day-;if(month=1|month=3|month=5|month=7|month=8|month=10|month=12)if(day=0)day=31;/month+;if(month=2)if(year+2000)%4=0&(year+2000)%100!=0|(year+2000)%400=0)if(day=0)day=29;/month+;elseif(day=0)day=28;/month+;if(month=4|month=6|month=9|month=11)if(day=0)day=30;/month+;write_date(day_addr_pos,day);delay_ms(5);write_command(first_line+day_addr_pos);delay_ms(5);break;case 2:month-;if(month=0)month=12;write_date(mon_addr_pos,month);delay_ms(5);write_command(first_line+mon_addr_pos);delay_ms(5);break;case 1:year-;if(year0)year=99;write_date(yer_addr_pos,year);delay_ms(5);write_command(first_line+yer_addr_pos);delay_ms(5);break;void DS18B20_write_byte(uchar byte)uchar i=0;for(i=0;i=1;delay_us(5);uchar DS18B20_read_byte(void)uchar i,temp=0;for(i=0;i=1;DQ=1;if(DQ)temp=temp|0x80;d