数字时钟55221.doc

单片机软件实现数码时钟，可以用proteus7.12仿真，也可以，做成实物后18B20会读取出错，或者给我发邮件给你一份实物能用的（proteus7.12仿真18B20会读取出错），电路图不清晰处理方法，将电路图另存为图片格式，或者直接放大即可。/liuxiaowei2mcuemail：#include #include#define uint unsigned int#define uchar unsigned charuchar hour,min,sec,sec1=0;/时钟函数uint time_ms=0;uchar time_sec=0,time_min=34,time_hour=9;uchar move=1;/调整位位移bit f0=0,f1=0,f2=0; /f1 键set按下uchar d7,d6,d5,d4,d3,d2,d1,d0;uchar key_press;uint temp;uchar tempreadbyte(void);/uint get_temp();float f_temp;bit tempreadbit(void);sbit DataPortDS1820=P35; /温度传感器信号线void tempwritebyte(uchar dat);void tempchange(void);void get_temp();void conv();void delay(uint z);void itnt();void itnttime();void key_input();void key_account();void set();/调整子程序void adj();/调整子程序void disp_temperature();void time_count(); /软件实现时间计算void Delay15us(void);void Delay10us(void);bit RstDS1820(void);void WriteDS1820(unsigned char ch);void Delay1us(unsigned char us);unsigned char ReadDS1820(void);void SkipROMCode(void);void StartADC(void) ;unsigned int GetTempValue(void);void itnt_18B20(void);void main() itnt(); while(1) key_account(); void itnt()/寄存器初始化 TMOD = 0x11; TH0 = (65536-2700)/256; TL0 = (65536-2700)%256; TH1 = (65536-54000)/256; TL1 = (65536-54000)%256; TR1 = 1; ET1 = 1; ET0 = 1; TR0 = 1; EA = 1;void delay (uint z) uint x,y; for (x=z;x0;x-) for(y=110;y0;y-) ; void key_account() key_input(); if (key_press=0x0e) delay(100); key_input(); if(key_press=0x0e) f1=1; while(key_press=0x0e) key_input(); set(); move=1; if (key_press=0x07) delay(200); key_input(); if(key_press=0x07) while(key_press=0x07) key_input(); f0=1; while(f0) key_input(); disp_temperature(); if (key_press=0x07) delay(200); key_input(); if(key_press=0x07) while(key_press=0x07) key_input(); f0=0; void key_input() key_press=P1; key_press=key_press&0x0f; if(key_press!=0x0f) sec1=0; void set()/调整子程序 while(f1) / conv(); key_input(); switch(key_press) case 0x0e: /S1 if(key_press=0x0e) delay(100); key_input(); if(key_press=0x0e) while(key_press=0x0e) key_input(); f1=0; if (hour=24) hour=0; time_hour=0; break; case 0x0d:/s2 if(key_press=0x0d) delay(100); key_input(); while(key_press=0x0d) key_input(); move+; if(move4) move=1; break; case 0x0b:/s3 if(key_press=0x0b) delay(100); key_input(); while(key_press=0x0b) key_input(); move-; if(move=10) ge = 0; min = shi*10+ge; break; case 2: ge = min%10; shi = min/10%10+1; if (shi=6) shi = 0; min = shi*10+ge; break; case 3: ge = hour%10+1; shi = hour/10%10; if (shi=2) if (ge=4) ge=0; if (ge=10) ge = 0; hour = shi*10+ge; break; case 4: ge = hour%10; shi = hour/10%10+1; if (shi=3) shi = 0; hour = shi*10+ge; break; /*/* 中断显示 */unsigned char code table = /段选 0x3F,0x06,0x5B,0x4F,/0,1,2,3 0x66,0x6D,0x7D,0x07,/4,5,6,7 0x7F,0x6F,0x77,0x7C,/8,9,a,b 0x39,0x5E,0x40,0x00;/c,d,-,关unsigned char code table1 = 0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f;/位选(从低到高)unsigned int coruscate,wei,dot;unsigned char d07,d06,d05,d04,d03,d02,d01,d00;void conv() uint t;TR0 =0; if(f0=0) d0 =tablesec%10; d1 =tablesec/10%10; d2 =table14; d3 =tablemin%10; d4 =tablemin/10%10; d5 =table14; d6 =tablehour%10; d7 =tablehour/10%10; else t = temp; d0 =0x39; d1 =0x63; d2 =tablet%10; d3 =tablet/10%10|0x80; if (f2=0) if (t100) d4 = 0; else d4 =tablet/100%10; if (t1000) d5 = 0; else d5 =tablet/1000%10; else if (t=100) coruscate=0; if(coruscate8) wei=1; switch(wei) case 1: P0=0; P2=table10; P0=d00; break; case 2: P0=0; P2=table11; P0=d01; break; case 3: P0=0; P2=table12; P0=d02; break; case 4: P0=0; P2=table13; P0=d03; break; case 5: P0=0; P2=table14; P0=d04; break; case 6: P0=0; P2=table15; P0=d05; break; case 7: P0=0; P2=table16; P0=d06; break; case 8: P0=0; P2=table17; P0=d07; break; /*/*软件实现时间计算*/*/void t1(void) interrupt 3 TH1 = (65536-54000)/256; TL1 = (65536-54000)%256; time_ms+; if(time_ms=20) time_ms=0; if(f1=0) time_sec+; if(time_sec=60) time_sec=0; time_min+; if(time_min%10=0|time_min%10=5) f0=1;sec1=0; if(time_min=60) time_min=0; time_hour+; if(time_hour=24) time_hour=0; sec=time_sec; min=time_min; hour=time_hour; if(f1=1) time_sec=0; sec=0; time_min=min; time_hour=hour; if(f1=1) sec1+; if(sec1=10) /按键无响应退出设置时间调整 f1=0; if(f0=1) sec1+; if(sec1=5) /按键无响应退出设置时间调整 f0=0; /*/*18B20相关程序*/*/void disp_temperature() uint i; delay(100); while(i0)i-; temp=GetTempValue(); /读取温度值 void Delay15us(void) Delay1us(15);void Delay10us(void) Delay1us(10);bit RstDS1820(void) /返回0-有设备连接1-无设备连接unsigned char i;bit RstFlag; RstFlag=1; DataPortDS1820=0; for (i=0;i100/*40*/;i+) /480us Delay15us(); DataPortDS1820=1; for (i=0;i4;i+) /15us-60us Delay15us(); for (i=0;i16;i+) /60us-240us Delay15us(); if (DataPortDS1820=0) RstFlag=0; for (i=0;i16;i+) /240us Delay15us(); return RstFlag; void WriteDS1820(unsigned char ch)unsigned char i; DataPortDS1820=1; Delay1us(1); for (i=0;i1; Delay1us(1); void Delay1us(unsigned char us) while (us) _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); -us; unsigned char ReadDS1820(void)unsigned char i,ch; ch=0; DataPortDS1820=1; Delay1us(1); for (i=0;i1; if (DataPortDS1820=1) ch=ch+0x80; EA=1; Delay15us();Delay15us();Delay15us(); return ch;void SkipROMCode(void) RstDS1820(); WriteDS1820(0xcc); void StartADC(void) RstDS1820(); /复位 Write