单片机设计温度计.doc

单片机设计温度计第1部分：原理图第2部分：程序代码#include#include#define uchar unsigned char#define uint unsigned int/*七段共阴管显示定义*/ uchar code dispcode =0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0xBF,0x86,0xCB,0xCF,0xEF,0xED,0xFD,0x87,0xFF,0xDF; uchar code TAB=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f; uchar code TAB1=0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff,0xef; /*定义并初始化变量*/uchar seconde=0;uchar minite=0;uchar hour=12;uchar mstcnt=0;uchar flag=0;float tp;sbit DQ=P17;sbit P1_0=P10;/ second 调整定义sbit P1_1=P11; /minite调整定义sbit P1_2=P12;sbit P3_2=P32;void delay(uchar k ); /延时子程序void time_pro( ); /时间处理子程序void display( ); /显示子程序void keyscan( );void TMP(void) ;void Time(void);void delayx(uint i)while(i-);void DelayMS(int x) char t; while(x-) for(t=0;t120;t+); void delay (uchar k)uchar j;while(k-)!=0) for(j=0;j0;i-)/DQ=1;/delay(1);DQ=0;dat=1;DQ=1;if(DQ)dat|=0x80;/读出数据放入高位，最后右移到低位delayx(4);return(dat); write(uchar dat)uchar i=0;for(i=8;i0;i-)DQ=0;DQ=dat&0x01;/从地位开始写入delayx(5);DQ=1;dat=1;delayx(4);Readtem(void)uchar a=0;uchar b=0; uchar t=0,t1;init_DS();write(0xcc);/跳过读序列号操作write(0x44);/启动温度转换delayx(125);init_DS();write(0xcc);write(0xbe);/读温度寄存器a=Read();/读取温度低位LSBb=Read();/读取温度低位HSBt1=(a&0x0f)*0.0625;/取小数部分t=(b4);/取整数部分if(t128)t=t+1;t=t+t1;return(t);void time_pro( void) if(seconde=60) seconde=0; minite+; if( minite=60) minite=0; hour+; if(hour=24) hour=0; void display(void) P2=0xfe;P0=dispcodehour/10;delay(4);P2=0xfd;P0=(dispcode(hour%10)|0X80;delay(4);P2=0xfb;P0=dispcodeminite/10;delay(4);P2=0xf7;P0=(dispcodeminite%10)|0X80;delay(4);P2=0xef;P0=dispcodeseconde/10;delay(4);P2=0xdf;P0=dispcodeseconde%10;delay(4); void keyscan (void)if(P1_0=0) delay(30); if(P1_0=0) while(!P1_0); seconde+; if(seconde=60) seconde=0; if(P1_1=0) delay(30); if(P1_1=0) while(!P1_1); minite+; if(minite=60) minite=0; if(P1_2=0) delay(30); if(P1_2=0) while(!P1_2); hour+; if(hour=24) hour=0; void displayqq(int k)/数码管显示 P2=0xf7;P0=TABk%10;DelayMS(5);P2=0xfb;P0=TABk/10%10;DelayMS(5);P2=0xfd;P0=TAB1k/100%10; DelayMS(5);P2=0xfe;P0=TABk/1000;DelayMS(5);void timer0(void) interrupt 1 using 0 TH0=0x3c;TMOD = 0x11; mstcnt+; if(mstcnt=20) seconde+; mstcnt=0; void main(void)P1=0xff;TMOD = 0x11; TH0=0x3c;TL0=0xb0;EA=1;ET0=1;EX0=1;TR0=1;while(1)if(flag=0)Time();elseTMP();void Time(void)keyscan( );time_pro( ); display( );void