📄 ds18b20lcd.c
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#include <reg51.h>
#include <absacc.h>
#define uchar unsigned char
#define uint unsigned int
#define LCD_COMMAND XBYTE[0x7fff] //LCD命令地址码
#define LCD_DATA XBYTE[0x7eff] //LCD数据地址码
//指针设置指令
/*
#define POINTER_SET XBYTE[0x20] //主指令
#define CURSOR_POINTER XBYTE[0x01] //以下三个为辅助参数，三选一
#define CGRAM_POINTER XBYTE[0x02]
#define ADDR_POINTER XBYTE[0x03]
//显示区域设置
#define VIEW_ARIAL_SET XBYTE[0x40] //主指令
#define TEXT_FIRST_ADDR XBYTE[0x00] //以下三个为辅助参数，
#define TEXT_WIDTH XBYTE[0x01]
#define GRAPH_FIRST_ADDR XBYTE[0x02]
#define GRAPH_WIDTH XBYTE[0x03]
#define DISP_MODE XBYTE[0x80]
#define CHARA_ON XBYTE[0x40]
#define DISP_SWICH XBYTE[0x90]
#define CURSOR_FLICER_ON XBYTE[0x01]
#define CURSOR_ON XBYTE[0x02]
#define TEXT_DISP_ON XBYTE[0x04]
#define GRAPH_DISP_ON XBYTE[0x08]
#define AUTO_RW XBYTE[0xb0]
#define WRITE XBYTE[0x00]
#define READ XBYTE[0x01]
#define STOP_INSTRUCT XBYTE[0x02]
#define ONCE_RW XBYTE[0xX0]
#define W_INC_ADDR XBYTE[0x00]
#define R_INC_ADDR XBYTE[0x01]
#define W_DEC_ADDR XBYTE[0x02]
#define R_DEC_ADDR XBYTE[0x03]
#define W_UNCHANLGE_ADDR XBYTE[0x04]
#define R_UNCHANLGE_ADDR XBYTE[0x05]*/
sbit DQ = P1^0;
struct CHANNAL
{
float t;
uchar month;
uchar day;
uchar hour;
uchar minute;
uchar second;
};
uchar code ZIMO[]={
/*-- 文字: 0 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:0
0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18,0x00,0x00,
/*-- 文字: 1 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:16
0x00,0x00,0x00,0x10,0x70,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00,
/*-- 文字: 2 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:32
0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x04,0x04,0x08,0x10,0x20,0x42,0x7E,0x00,0x00,
/*-- 文字: 3 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:48
0x00,0x00,0x00,0x3C,0x42,0x42,0x04,0x18,0x04,0x02,0x02,0x42,0x44,0x38,0x00,0x00,
/*-- 文字: 4 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:64
0x00,0x00,0x00,0x04,0x0C,0x14,0x24,0x24,0x44,0x44,0x7E,0x04,0x04,0x1E,0x00,0x00,
/*-- 文字: 5 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:80
0x00,0x00,0x00,0x7E,0x40,0x40,0x40,0x58,0x64,0x02,0x02,0x42,0x44,0x38,0x00,0x00,
/*-- 文字: 6 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:96
0x00,0x00,0x00,0x1C,0x24,0x40,0x40,0x58,0x64,0x42,0x42,0x42,0x24,0x18,0x00,0x00,
/*-- 文字: 7 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:112
0x00,0x00,0x00,0x7E,0x44,0x44,0x08,0x08,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00,
/*-- 文字: 8 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:128
0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x24,0x18,0x24,0x42,0x42,0x42,0x3C,0x00,0x00,
/*-- 文字: 9 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:144
0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x26,0x1A,0x02,0x02,0x24,0x38,0x00,0x00,
/*-- 文字: : --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:160
0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,
/*-- 文字: (blank) --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
//调用下标:176
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
/*-- 文字: 月 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=16x16 --*/
//调用下标:192
0x07,0xF0,0x04,0x10,0x04,0x10,0x04,0x10,0x07,0xF0,0x04,0x10,0x04,0x10,0x04,0x10,
0x07,0xF0,0x04,0x10,0x08,0x10,0x08,0x10,0x10,0x10,0x20,0x50,0x40,0x20,0x00,0x00,
/*-- 文字: 日 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=16x16 --*/
//调用下标: 224
0x00,0x00,0x1F,0xF0,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10,
0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10,0x00,0x00,0x00,0x00,
/*-- 文字: 通 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=16x16 --*/
//调用下标: 256
0x40,0x00,0x27,0xF8,0x20,0x90,0x00,0x60,0x07,0xF8,0x04,0x48,0xE7,0xF8,0x24,0x48,
0x24,0x48,0x27,0xF8,0x24,0x48,0x24,0x68,0x24,0x50,0x50,0x00,0x8F,0xFE,0x00,0x00,
/*-- 文字: 道 --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=16x16 --*/
//调用下标:288
0x02,0x10,0x41,0x20,0x2F,0xFC,0x20,0x80,0x01,0x00,0x03,0xF0,0xE2,0x10,0x23,0xF0,
0x22,0x10,0x23,0xF0,0x22,0x10,0x23,0xF0,0x22,0x10,0x50,0x00,0x8F,0xFE,0x00,0x00,
/*-- 文字: T --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
// 调用下标:320
0x00,0x00,0x00,0xFE,0x92,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x38,0x00,0x00,
/*-- 文字: = --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
// 调用下标:336
0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0x00,0x00,0x00,0xFE,0x00,0x00,0x00,0x00,0x00,
/*-- 调入了一幅图像：.C --*/
/*-- 宽度x高度=8x16 --*/
// 调用下标:352
0x40,0xA0,0xA1,0x41,0x0F,0x13,0x21,0x20,0x20,0x20,0x20,0x21,0x21,0x11,0x0E,0x00,
/*-- 文字: . --*/
/*-- Arial Black12; 此字体下对应的点阵为：宽x高=8x16 --*/
// 调用下标:368
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x60,0x00,0x00,
};
void clear_ram(void);
void init_lcd(void);
void write_c_1(uchar dat1,uchar com);
void write_c(uchar com);
void test3(void);
void test01(void);
void DISP_MESSAGE(struct CHANNAL channal1, struct CHANNAL channal2);
void test01(void)
{
again1:
ACC=LCD_COMMAND;
if(ACC&0x03!=0x03)
goto again1;
}
void test3(void)
{
again2: //自动写是否准备好
ACC=LCD_COMMAND;
if(ACC&0x08!=0x08)
goto again2;
}
//写无参数指令
void write_c(uchar com)
{
test01();
LCD_COMMAND = com;
}
//写单参数指令
void write_c_1(uchar dat1,uchar com)
{
test01();
LCD_DATA = dat1;
LCD_COMMAND = com;
}
//写双参数指令
void write_c_2(uchar dat1,uchar dat2,uchar com)
{
test01();
LCD_DATA = dat1;
LCD_DATA = dat2;
LCD_COMMAND = com;
}
void init_lcd(void)
{
write_c_2(0x00,0x00,0x40);
write_c_2(0x10,0x00,0x41);
write_c_2(0x00,0x08,0x42);
write_c_2(0x10,0x00,0x43);
write_c(0xa7);
write_c(0x80);
write_c(0x98);
}
void clear_ram(void) //清掉屏幕上的所有亮点
{
uint i;
//write_c_2(0x03,0x00,0x22);
write_c_2(0x00,0x00,0x24);
write_c(0xb0);
for(i=8192;i>0;i--)
{
test3();
LCD_DATA = 0x00;
}
write_c(0xb2);
}
void SHOW_8P16(uchar o_x,uchar o_y,uint AddofZimo) // SHOW_16P16(4,2,528);//年
{
uint add,num;
uchar dat1,dat2,i;
add=o_y<<4;
add=add+o_x+0x0800;
num=AddofZimo;
for(i=16;i>0;i--)
{
dat1=(uchar)add&0xff;
dat2=(uchar)((add>>8)&0xff);
write_c_2(dat1,dat2,0x24);
write_c_1(ZIMO[num],0xc0);
num++;
add+=16;
}
}
// 16※16
void SHOW_16P16(uchar o_x,uchar o_y,uint AddofZimo)
{
uint add,num;
uchar dat1,dat2,i;
add=o_y<<4;
add=add+o_x+0x0800;
num=AddofZimo;
for(i=16;i>0;i--)
{
dat1=(uchar)add&0xff;
dat2=(uchar)((add>>8)&0xff);
write_c_2(dat1,dat2,0x24);
write_c_1(ZIMO[num],0xc0);
write_c_1(ZIMO[num+1],0xc0);
num+=2;
add+=16;
}
}
void DISP_MESSAGE(struct CHANNAL channal1, struct CHANNAL channal2)
{
double tt;
uchar i,dat;
//第一行
SHOW_16P16(0,0,256);//通
SHOW_16P16(2,0,288);//道
SHOW_8P16(4,0,16);//1
SHOW_8P16(5,0,176);//空格
SHOW_8P16(6,0,320);//T
SHOW_8P16(7,0,336);//=
tt=channal1.t;
i = tt/10;
tt = tt - i*10;
SHOW_8P16(8,0,i*16);//温度的十位
i = (uchar)tt/1;
tt = tt - i;
SHOW_8P16(9,0,i*16);////温度的个位
SHOW_8P16(10,0,368);//.
tt = tt * 1000;
i = tt/100;
tt = tt - i*100;
SHOW_8P16(11,0,i*16);//温度的小数第一位
i = tt/10;
tt = tt - i*10;
SHOW_8P16(12,0,i*16);//温度的小数第二位
i = tt/1;
tt = tt - i;
SHOW_8P16(13,0,i*16); //温度的小数第三位
SHOW_8P16(14,0,352);//度的符号
////////////////////////
//下面为第二行
dat = channal1.month;
i = dat/10;
dat = dat - i*10;
SHOW_8P16(0,16,i*16);//0
SHOW_8P16(1,16,dat*16);//8
SHOW_16P16(2,16,192);//月
dat = channal1.day;
i = dat/10;
dat = dat - i*10;
SHOW_8P16(4,16,i*16);//1
SHOW_8P16(5,16,dat*16);//7
SHOW_16P16(6,16,224);//日
dat = channal1.hour;
i = dat/10;
dat = dat - i*10;
SHOW_8P16(8,16,i*16);
SHOW_8P16(9,16,dat*16);
SHOW_8P16(10,16,160);//:
dat = channal1.minute;
i = dat/10;
dat = dat - i*10;
SHOW_8P16(11,16,i*16);
SHOW_8P16(12,16,dat*16);
SHOW_8P16(13,16,160); //:
dat = channal1.second;
i = dat/10;
dat = dat - i*10;
SHOW_8P16(14,16,i*16);
SHOW_8P16(15,16,dat*16);
//以下为通道二
SHOW_16P16(0,32,256);//通
SHOW_16P16(2,32,288);//道
SHOW_8P16(4,32,32);//1
SHOW_8P16(5,32,176);//空格
SHOW_8P16(6,32,320);//T
SHOW_8P16(7,32,336);//=
tt=channal2.t;
i = tt/10;
tt = tt - i*10;
SHOW_8P16(8,32,i*16);//温度的十位
i = (uchar)tt/1;
tt = tt - i;
SHOW_8P16(9,32,i*16);////温度的个位
SHOW_8P16(10,32,368);//.
tt = tt * 1000;
i = tt/100;
tt = tt - i*100;
SHOW_8P16(11,32,i*16);//温度的小数第一位
i = tt/10;
tt = tt - i*10;
SHOW_8P16(12,32,i*16);//温度的小数第二位
i = tt/1;
tt = tt - i;
SHOW_8P16(13,32,i*16); //温度的小数第三位
SHOW_8P16(14,32,352);//度的符号
////////////////////////
//下面为第二行
dat = channal2.month;
i = dat/10;
dat = dat - i*10;
SHOW_8P16(0,48,i*16);//0
SHOW_8P16(1,48,dat*16);//8
SHOW_16P16(2,48,192);//月
dat = channal2.day;
i = dat/10;
dat = dat - i*10;
SHOW_8P16(4,48,i*16);//1
SHOW_8P16(5,48,dat*16);//7
SHOW_16P16(6,48,224);//日
dat = channal2.hour;
i = dat/10;
dat = dat - i*10;
SHOW_8P16(8,48,i*16);
SHOW_8P16(9,48,dat*16);
SHOW_8P16(10,48,160);//:
dat = channal2.minute;
i = dat/10;
dat = dat - i*10;
SHOW_8P16(11,48,i*16);
SHOW_8P16(12,48,dat*16);
SHOW_8P16(13,48,160); //:
dat = channal2.second;
i = dat/10;
dat = dat - i*10;
SHOW_8P16(14,48,i*16);
SHOW_8P16(15,48,dat*16);
}
// 以下是读取温度
//延时
void delay(unsigned int useconds)
{
for(;useconds>0;useconds--);
}
//复位
unsigned char ow_reset(void)
{
unsigned char presence;
DQ = 0; //pull DQ line low
delay(45); // leave it low for 480us
DQ = 1; // allow line to return high
delay(1); // wait for presence
presence = DQ; // get presence signal
delay(23); // wait for end of timeslot
return(presence); // presence signal returned
} // 0=presence, 1 = no part
unsigned char read_byte(void)
{
unsigned char i,data1,j;
data1 = 0x00;
j = 1;
for(i=1;i<=8;i++)
{
DQ = 0;
j++;
DQ = 1;
j++;j++;j++;
j++;j++;j++;
j++;j++;j++;
if(DQ == 0)
j = 0x00;
else
j = 0x01;
j<<=(i-1);
data1 = data1 | j;
j=3;while(j>0)j--;
}
return data1;
}
void write_byte(unsigned char data1)
{
unsigned int i,k;
unsigned char j;
for(j=1;j<=8;j++)
{
k = data1 & 0x01;
data1 >>= 1;
if(k==1)
{
DQ = 0;
i++;i++;
DQ = 1;
i=4;while(i>0) i--;
i++;i++;
}
else
{
DQ = 0;
i = 5;while(i>0)i--;
DQ = 1;
i++;
}
}
}
//读取温度
unsigned int Read_Temperature(void)
{
int i,j;
union
{
unsigned char c[2];
int x;
}temp;
ow_reset();
i=i;
write_byte(0xcc); //Skip ROM
i=i;
write_byte(0x44); // Start Conversion
DQ = 1;
for(j=0;j<100;j++)
{
delay(900);
}
ow_reset();
i=i ;
write_byte(0xcc); // Skip ROM
i=i;
write_byte(0xbe); // Read Scratch Pad
i=i;
temp.c[1]=read_byte();
i=i;
temp.c[0]=read_byte();
ow_reset();
return temp.x;
}
float convert_t()
{
unsigned int temp,k,m;
float j,t;
char i;
t=0;
j=64.0;
temp = Read_Temperature();
k=0x0400;
for(i=11;i>0;i--)
{
m=k&temp;
if(m!=0)
t=t+j;
j/=2.0;
k>>=1;
}
return t;
}
void main()
{
int i,j;
struct CHANNAL ch1,ch2;
ch1.month = 8;
ch1.day = 17;
ch1.hour = 14;
ch1.minute = 34;
ch1.second = 50;
for(i=0;i<2;i++)
{
for(j=0;j<30000;j++)
;
}
init_lcd();
for(j=0;j<30000;j++)
;
clear_ram();
DISP_MESSAGE(ch1,ch2);
ch1.t = convert_t();
delay(100);
while(1)
{
for(i=0;i<4;i++)
for(j=0;j<30000;j++)
;
ch1.t = convert_t();
DISP_MESSAGE(ch1,ch2);
}
}
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