DS1302++1602时钟例程C语言版.doc

/*1602时钟 */*2010年09月22日10：10至次日00:09做*/#include #include#define uchar unsigned char#define uint unsigned int#define SECOND 0x81#define MINUTE 0x83#define HOUR 0x85sbit rs=P20;sbit rw=P21;sbit ep=P22;sbit DS1302_SCLK = P10; sbit DS1302_IO= P11; sbit DS1302_RST = P12; sbit M=P32;sbit U=P33;sbit D=P34;unsigned char sel=0;uchar code DIS1=Centrineer;uchar code DIS2=QQ:778341220;/延时/void delay(uint ms) unsigned int a,b; for(a=0;ams;a+) for(b=0;b120;b+); /*DS1302驱动*/ / void DS1302_Write(uchar D)uchar i;for(i=0;i1;/uchar DS1302_Read()uchar TempDat=0,i;for(i=0;i=1; if(DS1302_IO) TempDat=TempDat|0x80;DS1302_SCLK=1;DS1302_SCLK=0; return TempDat;/void WDS1302(uchar ucAddr, uchar ucDat) DS1302_RST = 0; DS1302_SCLK = 0; DS1302_RST = 1; DS1302_Write(ucAddr); DS1302_Write(ucDat); DS1302_SCLK = 1; DS1302_RST = 0; /uchar RDS1302(uchar ucAddr) uchar ucDat; DS1302_RST = 0; DS1302_SCLK = 0; DS1302_RST = 1; DS1302_Write(ucAddr); ucDat=DS1302_Read(); DS1302_SCLK = 1; DS1302_RST = 0;return ucDat;/void init_1302() WDS1302(0x8e,0x00);/开保护寄存器 WDS1302(0x80,0x55);/秒 WDS1302(0x82,0x59);/分 WDS1302(0x84,0x23);/时 WDS1302(0x8A,0x07);/星期 WDS1302(0x86,0x02);/日 WDS1302(0x88,0x08);/月 WDS1302(0x8C,0x09);/年 WDS1302(0x90,0xab);/卷电流充电 WDS1302(0x8e,0x80);/关保护寄存器 /*1602驱动*/bit lcd_bz() bit result; rs = 0; rw = 1; ep = 1; _nop_(); _nop_(); _nop_(); _nop_(); result = (bit)(P0 & 0x80); ep = 0; return result; / void lcd_wcmd(unsigned char cmd) while(lcd_bz(); rs = 0; rw = 0; ep = 0; _nop_(); _nop_(); P0 = cmd; _nop_(); _nop_(); _nop_(); _nop_(); ep = 1; _nop_(); _nop_(); _nop_(); _nop_(); ep= 0; /void lcd_pos(unsigned char pos) lcd_wcmd(pos | 0x80); /void lcd_wdat(unsigned char dat) while(lcd_bz(); rs = 1; rw = 0; ep = 0; P0 = dat; _nop_(); _nop_(); _nop_(); _nop_(); ep = 1; _nop_(); _nop_(); _nop_(); _nop_(); ep = 0; /void lcd_init() lcd_wcmd(0x38); delay(1); lcd_wcmd(0x0c); delay(1); lcd_wcmd(0x06); delay(1); lcd_wcmd(0x01); delay(1); /*调时函数*/ void set_time() signed char address,item; signed char max,mini; if(M=0) sel+; delay(300);if(sel=6) sel=0; if(sel=2) address=0x82; max=59;mini=0; if(sel=1) address=0x84; max=23;mini=0; if(sel=3) address=0x8c; max=99;mini=9;if(sel=4) address=0x88; max=12;mini=1; if(sel=5) address=0x86; max=31;mini=1; M=1; item=(RDS1302(address+1)/16)*10 + (RDS1302(address+1)%16; if(U = 0) delay(200); U=1; item+; if(D = 0) delay(200);D=1; item-; if(itemmax) item=mini; if(item4; lcdshow_u(6,0x30+x); y=y&0x0f;lcdshow_u(7,0x30+y);lcdshow_u(8,:); x=RDS1302(MINUTE); y=x; x=x4; lcdshow_u(9,0x30+x); y=y&0x0f;lcdshow_u(0x0a,0x30+y);lcdshow_u(0x0b,:); x=RDS1302(SECOND); y=x; x=x4; lcdshow_u(0x0c,0x30+x); y=y&0x0f;lcdshow_u(0x0d,0x30+y); x=RDS1302(0x8d); y=x; x=x4; lcdshow_d(8,0x30+x); y=y&0x0f;lcdshow_d(9,0x30+y);lcdshow_d(0x0a,-); x=RDS1302(0x89); y=x; x=x4; lcdshow_d(0x0b,0x30+x); y=y&0x0f;lcdshow_d(0x0c,0x30+y);lcdshow_d(0x0d,-); x=RDS1302(0x87); y=x; x=x4; lcdshow_d(0x0e,0x30+x); y=y&0x0f;lcdshow_d(0x0f,0x30+y);for(x=45;x0;x-)set_time();delay(10);/*主函数*/void main()uchar i;lcd_init();delay(10); lcd_pos(0x03);i = 0; while(DIS1i != 0) lcd_wdat(DIS1i); i+; lcd_pos(0x42); i = 0; while(DIS2i != 0) lcd_wdat(DIS2i);i+; /init_1302();delay(1000);for(i=0;i);delay(90);for(i=0;i);delay(90);lcd_init();delay(10);lcdshow_u(0,T);lcdshow_u(1,i);lcdshow_u(2,m);lcdshow_u(3,e);lcdshow_d(0,D);lcdshow_d(1,a);lcdshow_d(2,t);lcdshow_d(3,a);lcdshow_d(6,2);lcdshow_d(7,0); /LCD框架描绘 while(1) set_time(); if(sel=2) lcdshow_u(9, );lcdshow_u(0x0a, );delay(500); if(sel=1