51+Nokia5110

it2025-02-13 8

#include<reg52.h> #include <intrins.h> #define uchar unsigned char #define uint unsigned int sbit DQ=P2^2; uint wendu; sbit sce = P1^3; //片选 sbit res = P1^4; //复位,0复位 sbit dc = P1^2; //1写数据，0写指令 sbit sdin = P1^1; //数据 sbit sclk = P1^0; //时钟 /*------------------------------------shuzihanzi-----------------------------------*/ unsigned char code shuzi[]={ //0 0xF8,0x04,0x04,0x04,0xF8,0x00,0x01,0x02,0x02,0x02,0x01,0x00, //1 0x00,0x08,0xFC,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00, // 0x18,0x84,0x44,0x44,0x38,0x00,0x03,0x02,0x02,0x02,0x02,0x00, //3 0x88,0x04,0x24,0x24,0xD8,0x00,0x01,0x02,0x02,0x02,0x01,0x00, //4 0xC0,0xB0,0x88,0xFC,0x80,0x00,0x00,0x00,0x00,0x03,0x00,0x00, //5 0x3C,0x14,0x14,0x14,0xE4,0x00,0x01,0x02,0x02,0x02,0x01,0x00, //6 0xF8,0x24,0x24,0x24,0xC8,0x00,0x01,0x02,0x02,0x02,0x01,0x00, //7 0x04,0x04,0x04,0xE4,0x1C,0x00,0x00,0x00,0x03,0x00,0x00,0x00, //8 0xD8,0x24,0x24,0x24,0xD8,0x00,0x01,0x02,0x02,0x02,0x01,0x00, //9 0x38,0x44,0x44,0x44,0xF8,0x00,0x01,0x02,0x02,0x02,0x01,0x00, //' 0x00,0x00,0x04,0x0A,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //C 0xF8,0x04,0x04,0x04,0x98,0x00,0x01,0x02,0x02,0x02,0x01,0x00, //. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00, //: 0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00, //T 0x04,0x04,0xFC,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*/ }; /*--------------------------5110驱动------------------------------*/ /**********************延时函数************************/ void delayus(uint z) //微妙级延时 { uint y; for(y=z;y>0;y--); } void delayms(uint z) //毫秒级延时 { uint x,y; for(y=z;y>0;y--) for(x=1400;x>0;x--); } /********************写字节**************************/ 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;i<8;i++) //传送8bit数据 { if(dt&0x80) sdin=1; else sdin=0; dt=dt<<1; sclk=0; sclk=1; } dc=1; sce=1; //禁止5110 sdin=1; } /*******************初始化********************************************/ 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(0xa0,0);//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 } /*********************设置初始坐标************************************/ void LCD_set_XY(unsigned char X, unsigned char Y) //设置LCD坐标，X:0-83 Y:0-5 { LCD_write_byte(0x40 | Y, 0);// column //列 LCD_write_byte(0x80 | X, 0);// row //行 } /**********************清屏函数***************************************/ 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;t<6;t++) { for(k=0;k<84;k++) { LCD_write_byte(0x00,1); //写数据 } } } /****************************输入数字**************************************/ 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; i<6;i++) { LCD_write_byte(shuzi[c*12+i],1); } LCD_set_XY(row*6, page+1);// 列，页 for(i=6; i<12;i++) { LCD_write_byte(shuzi[c*12+i],1); } } /******************************输入汉字*************************************/ 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; i<12;i++) { LCD_write_byte(hanzi[c*24+i],1); } LCD_set_XY(row*6, page+1);// 列，页 for(i=12; i<24;i++) { LCD_write_byte(hanzi[c*24+i],1); } } /*-----------------------------------------18b20驱动--------------------------------*/ /*************精确延时函数**************** */ // 数据表如下 /* ******************************************************************************************************************** 延时时间 a的值 b的值 c的值延时误差（us） 10us 1 1 1 -0.5 20us 1 1 8 0 30us 1 1 15 +0.5 40us 2 1 9 0 50us 1 1 28 0 60us 1 1 35 +0.5 70us 1 1 42 +1 80us 1 1 48 0 90us 1 1 55 +0.5 100us 1 1 61 -0.5 200us 1 1 128 0 300us 3 1 63 +1.5 400us 2 1 129 0 500us 5 1 63 +0.5 600us 6 1 63 0 700us 7 1 63 -0.5 800us 1 3 175 +0.5 900us 9 1 63 -1.5 1ms 1 3 219 -1.5 2ms 2 3 220 +3 3ms 3 3 220 +3 Xms X 3 220 +3 (X的范围为2到255) */ void Delay(unsigned char a1,b1,c1) { unsigned char a,b,c; for(a=0;a<a1;a++) for(b=0;b<b1;b++) for(c=0;c<c1;c++); } /*****************DS18B20******************/ void Init_Ds18b20(void) //DS18B20初始化send reset and initialization command { DQ = 1; //DQ复位,不要也可行。 Delay(1,1,1); //稍做延时 10us DQ = 0; //单片机拉低总线 Delay(6,1,63); //600 us //精确延时，维持至少480us //Delay(1,1,15); //20us DQ = 1; //释放总线，即拉高了总线 Delay(5,1,63); //500us //此处延时有足够,确保能让DS18B20发出存在脉冲。 } uchar Read_One_Byte() //读取一个字节的数据read a byte date //读数据时,数据以字节的最低有效位先从总线移出 { uchar i = 0; uchar dat = 0; for(i=8;i>0;i--) { DQ = 0; //将总线拉低，要在1us之后释放总线 //单片机要在此下降沿后的15us内读数据才会有效。 _nop_(); //至少维持了1us,表示读时序开始 dat >>= 1; //让从总线上读到的位数据，依次从高位移动到低位。 DQ = 1; //释放总线，此后DS18B20会控制总线,把数据传输到总线上 Delay(1,1,1); //延时10us,此处参照推荐的读时序图，尽量把控制器采样时间放到读时序后的15us内的最后部分 if(DQ) //控制器进行采样 { dat |= 0x80; //若总线为1,即DQ为1,那就把dat的最高位置1;若为0,则不进行处理,保持为0 } Delay(1,1,8); //20us //此延时不能少，确保读时序的长度60us。 } return (dat); } void Write_One_Byte(uchar dat) { uchar i = 0; for(i=8;i>0;i--) { DQ = 0; //拉低总线 _nop_(); //至少维持了1us,表示写时序(包括写0时序或写1时序)开始 DQ = dat&0x01; //从字节的最低位开始传输 //指令dat的最低位赋予给总线,必须在拉低总线后的15us内, //因为15us后DS18B20会对总线采样。 Delay(1,1,15); //必须让写时序持续至少60us DQ = 1; //写完后,必须释放总线, dat >>= 1; Delay(1,1,1); } } void Get_Tmp_dispaly() //获取温度get the wenduerature { uchar A1,A2,A3; float tt; uchar a,b; Init_Ds18b20(); //初始化 Write_One_Byte(0xcc); //忽略ROM指令 Write_One_Byte(0x44); //温度转换指令 Init_Ds18b20(); //初始化 Write_One_Byte(0xcc); //忽略ROM指令 Write_One_Byte(0xbe); //读暂存器指令 a = Read_One_Byte(); //读取到的第一个字节为温度LSB b = Read_One_Byte(); //读取到的第一个字节为温度MSB wendu = b; //先把高八位有效数据赋于wendu wendu <<= 8; //把以上8位数据从wendu低八位移到高八位 wendu = wendu|a; //两字节合成一个整型变量 tt = wendu*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 wendu = tt*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。 A1 = wendu/100; //百位 A2 = wendu%100/10; //十位 A3 = wendu%10; //个位 LCD_write_shu(6,2,A1); //得到十位数 LCD_write_shu(7,2,A2 ); //得到个位数 LCD_write_shu(9,2,A3); //得到个位数 } void main() { unsigned char k,i; res=0; for(k=0;k<250;k++); res=1; LCD_init(); //初始化LCD模块 LCD_clear(); //清屏幕 LCD_write_shu(8,2,12); //点 LCD_write_shu(10,2,10);//ling LCD_write_shu(11,2,11); //C //LCD_write_shu(5,0,13); // LCD_write_zi(1,0,0); //温 //LCD_write_zi(3,0,1); //度 LCD_write_zi(1,2,0); //wen LCD_write_zi(3,2,3);//度 //LCD_write_shu(5,2,13); //LCD_write_zi(1,4,4); //guang //LCD_write_zi(3,4,5); //qiang LCD_write_shu(5,2,13); //强冒 while(1) { Get_Tmp_dispaly(); } }

转载于:https://www.cnblogs.com/doker/p/11079719.html

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