nokia5110液晶显示温度程序.doc

温度显示程序：#include#define uchar unsigned char#define uint unsigned intsbit ds=P34;uint temp;float f_temp;sbit sce = P13; /片选sbit res = P14; /复位,0复位sbit dc = P12; /1写数据，0写指令sbit sdin = P11; /数据sbit sclk = P10; /时钟unsigned char code shuzi=/00xF8,0x04,0x04,0x04,0xF8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/10x00,0x08,0xFC,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,/0x18,0x84,0x44,0x44,0x38,0x00,0x03,0x02,0x02,0x02,0x02,0x00,/30x88,0x04,0x24,0x24,0xD8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/40xC0,0xB0,0x88,0xFC,0x80,0x00,0x00,0x00,0x00,0x03,0x00,0x00,/50x3C,0x14,0x14,0x14,0xE4,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/60xF8,0x24,0x24,0x24,0xC8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/70x04,0x04,0x04,0xE4,0x1C,0x00,0x00,0x00,0x03,0x00,0x00,0x00,/80xD8,0x24,0x24,0x24,0xD8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/90x38,0x44,0x44,0x44,0xF8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/0x00,0x00,0x04,0x0A,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/C0xF8,0x04,0x04,0x04,0x98,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/.0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,/:0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,/T0x04,0x04,0xFC,0x04,0x04,0x00,0x00,0x00,0x03,0x00,0x00,0x00;unsigned char code hanzi=0x22,0x44,0x00,0xC0,0x5F,0xD5,0x55,0xD5,0x5F,0xC0,0x00,0x00,0x04,0x02,0x09,0x0F,0x08,0x0F,0x08,0x0F,0x08,0x0F,0x08,0x00,/*温,0*/0x00,0xFE,0x0A,0x8A,0xBE,0xAA,0xAB,0xAA,0xBE,0x8A,0x0A,0x00,0x08,0x07,0x00,0x08,0x09,0x0A,0x04,0x04,0x0A,0x09,0x08,0x00,/*度,1*/0x11,0x22,0x80,0x3E,0x2A,0xEA,0x2A,0xEA,0x2A,0x3E,0x80,0x00,0x04,0x02,0x08,0x09,0x08,0x0F,0x08,0x0F,0x08,0x09,0x08,0x00,/*湿,2*/0x00,0xFE,0x0A,0x8A,0xBE,0xAA,0xAB,0xAA,0xBE,0x8A,0x0A,0x00,0x08,0x07,0x00,0x08,0x09,0x0A,0x04,0x04,0x0A,0x09,0x08,0x00,/*度,3*/0x20,0x22,0x24,0xE8,0x20,0x3F,0x20,0xE8,0x24,0x22,0x20,0x00,0x08,0x04,0x02,0x01,0x00,0x00,0x00,0x07,0x08,0x08,0x0E,0x00,/*光,4*/0xF2,0x92,0x9E,0x00,0xE0,0x2F,0x29,0xF9,0x29,0x2F,0xE0,0x00,0x08,0x08,0x07,0x00,0x09,0x09,0x09,0x0F,0x09,0x0D,0x09,0x00,/*强,5*/;void delayus(uint z) /微妙级延时uint y;for(y=z;y0;y-);void delayms(uint z) /毫秒级延时uint x,y;for(y=z;y0;y-) for(x=1400;x0;x-);void LCD_write_byte(unsigned char dt, unsigned char command) /写字节unsigned char i;sce=0; /5110片选有效，允许输入数据dc=command; /0写指令，1写数据for(i=0;i8;i+) /传送8bit数据 if(dt&0x80) sdin=1; else sdin=0; dt=dt1; sclk=0; sclk=1; dc=1; sce=1; /禁止5110sdin=1;void LCD_init(void) /初始化（command=0，写指令） res=0; delayms(1); res=1; LCD_write_byte(0x21,0);/初始化Lcd,功能设定使用扩充指令 LCD_write_byte(0xa7,0);/设定液晶偏置电压(5v)，5110接5V时偏置电压改为（0xa7,0）,接3.3V时改为（0xc0,0） LCD_write_byte(0x20,0);/使用基本指令 LCD_write_byte(0x0C,0);/设定显示模式，正常显示 void LCD_set_XY(unsigned char X, unsigned char Y) /设置LCD坐标，X:0-83 Y:0-5LCD_write_byte(0x40 | Y, 0);/ column /列LCD_write_byte(0x80 | X, 0);/ row /行void LCD_clear(void) /LCD清屏函数 unsigned char t; unsigned char k; LCD_set_XY(0,0); /设置RAM起始地址 for(t=0;t6;t+) for(k=0;k84;k+) LCD_write_byte(0x00,1); /写数据 void LCD_write_shu(unsigned char row, unsigned char page,unsigned char c) /row:列 page:页 dd:字符，page范围为0-5， unsigned char i; LCD_set_XY(row*6, page);/ 列，页 for(i=0; i6;i+) LCD_write_byte(shuzic*12+i,1); LCD_set_XY(row*6, page+1);/ 列，页 for(i=6; i12;i+) LCD_write_byte(shuzic*12+i,1); void LCD_write_zi(unsigned char row, unsigned char page,unsigned char c) unsigned char i; LCD_set_XY(row*6, page);/ 列，页 for(i=0; i12;i+) LCD_write_byte(hanzic*24+i,1); LCD_set_XY(row*6, page+1);/ 列，页 for(i=12; i24;i+) LCD_write_byte(hanzic*24+i,1); void dsreset(void) /温度初始化函数 ds=0; delayus(103); ds=1; delayus(4);bit tempreadbit(void) /读取一个字节的温度 bit dat; ds=0; delayus(1); ds=1; delayus(2); dat=ds; delayus(8); return(dat); uchar tempread(void) /8字节读取 uchar i,j,dat; dat=0; for(i=1;i=8;i+) j=tempreadbit(); dat=(j1); return(dat);void tempwritebyte(uchar dat) /8字节写温度 uchar j; bit testb; for(j=1;j1; /右移 if(testb) ds=0; delayus(2); ds=1; delayus(8); else ds=0; delayus(8); ds=1; delayus(2); void tempchange(void) dsreset(); /温度复位 delayms(1); tempwritebyte(0xcc); / 跳过读序号列号的操作 tempwritebyte(0x44); /启动温度转换 uint get_temp() /获取温度函数 uchar a,b; dsreset(); /温度复位 delayms(1); tempwritebyte(0xcc); tempwritebyte(0xbe); /读取温度寄存器 a=tempread(); /读低八位 b=tempread(); /读高八位 temp=b; temp=8; temp=temp|a; /两字节合成一个整型变量 f_temp=temp*0.0625; /得到真实十进制温度值，因为DS18B20可以精确到0.0625度，所以读回数据的最低位代表的是0.0625度 temp=f_temp*10+0.5; /放大十倍，这样做的目的将小数点后第一位也转换为可显示数字，同时进行一个四舍五入操作。 return(temp); void dis_temp(uint t)