带温度和时间显示程序.doc

//带温度和时间显示程序 //???? C //neo //V1.1 2011-7-16 //MCS-51 12MHZ C?? //????: DS1302?DS18B20 *********************************************************************************************/ #include reg52.h #include intrins.h #define uint8 unsigned char #define uchar unsigned char #define uint unsigned int uchar Disp_Buff[4]; char SB=4; // clock set time bit //bit Set_Flag; // set time flag bit T=0; // display Temperature and Time flag bit TT=0; // 10S Auto change display Temperature and Time flag //#define T0_H 0xf0 // 4ms //#define T0_L 0x60 #define T0_H 0xf5 // 2666us #define T0_L 0x96 #define ST 20 #define T1_H 0xb1 //20ms #define T1_L 0xe0 #define NumLed_Bit P2 #define Disp P0 #define Key P3 #define Key1 1 #define Key2 2 #define Key3 3 #define Key4 4 #define Key_NULL 0 sbit Beep=P0^7; void Play(uchar t); sbit Red_Led=P3^7; // Driver DS1302 /********************************************************************************************/ sbit RST=P1^2; sbit IO=P1^0; sbit SCLK=P1^1; #define second_write 0x80 #define minute_write 0x82 #define hour_write 0x84 #define week_write 0x8a #define day_write 0x86 #define month_write 0x88 #define year_write 0x8c #define second_read 0x81 #define minute_read 0x83 #define hour_read 0x85 #define week_read 0x8b #define day_read 0x87 #define month_read 0x89 #define year_read 0x8d #define sclk_high SCLK=1; #define sclk_low SCLK=0; #define io_high IO=1; #define io_low IO=0; #define io_read IO #define rst_high RST=1; #define rst_low RST=0; struct {uint8 second; uint8 minute; uint8 hour; uint8 day; uint8 week; uint8 month; uint8 year; } current_time; /********************************************************************************************/ static void ds1302write(uint8 content) { uint8 i; for(i=8;i0;i--) { if(content0x01) io_high else io_low content=1; sclk_high scl