DS18B20和ADC0832共同使用
#include
#define uchar unsigned char
sbit DQ=P1^4;
uchar data temp_data[2]={0x00,0x00};
uchar data display[5]={0x00,0x00,0x00,0x00,0x00};
unsigned char code ditab[16] ={0x00,0x01,0x01,0x02,0x03,0x03,0x04,0x04,
0x05,0x06,0x06,0x07,0x08,0x08,0x09,0x09} ;
//共阴数码管
uchar code table[11]
={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00};// 0,1,2,3,4,5 ，6,7,8,9,百位或当最高位十位为0时不显示
uchar code table1[10]={0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff,0xef};// 0.，1.，2.，3.，4.，5.，6.，7.，8.，9.各位带有小数点的显示
//以下为水位显示区域
#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long
#define _rrca_() CY = ACC & 0x01 #define _rlca_() CY = ACC & 0x80 sbit bADcs=P1^7;
sbit bADcl=P1^6;
sbit bADda=P1^5;
sbit flag=P1^3;
//sbit str=P2^7;
//sbit d=P2^6;
//sbit clk=P2^5;
//产生RRC A指令//产生RLC A指令
bit choose=0;
unsigned char data1;
unsigned char count;
unsigned char cycle;
uint ge,xiao1,xiao2;
unsigned long data2;
unsigned char code tablewe[]=
{
0xFE,0xFD,0xFB,0xF7,
0xEF,0xDF,0xBF,0x7F
};//自己写的
void delay_18b20(unsigned int i)
{
while(i--);
}
//函数区域水位
void Delayus(uchar i)
{
while(--i);
}
void ad(void)
{ uchar i;
//data1=0;
bADcs = 0;//当ADC0832未工作时其CS输入端应为高电平，此时芯片禁用.
bADcl=0;
bADda=1;
bADcl=1;
bADcl=0;//i down
bADda=1;
bADcl=1;
bADcl=0; // 2 down
bADda=0;
bADcl=1;
bADcl=0; // 3 down
bADda=1;
bADcl=1;
bADcl=0; // 4 down
for(i=8;i>0;i--)
{
data10;i--)
{
DQ=0; // 给脉冲信号
dat>>=1;
DQ=1; // 给脉冲信号
if(DQ)
dat|=0x80 ;
delay_18b20(4) ;
}
return (dat) ;
}
WriteOneChar(unsigned char dat)
{
unsigned char i=0;
for(i=8;i>0;i--)
{
DQ=0;
DQ=dat&0x01;
delay_18b20(5);
DQ=1;
dat>>=1;
}
}
Read_Temperature(void)
{
Init_DS18B20() ;
WriteOneChar(0xCC) ; // 跳过读序号列号的操作
WriteOneChar(0x44) ; // 启动温度转换
Init_DS18B20() ;
WriteOneChar(0xCC) ; //跳过读序号列号的操作
WriteOneChar(0xBE) ; //读取温度寄存器
temp_data[0] = ReadOneChar(); //温度低8位
temp_data[1] = ReadOneChar(); //温度高8位
}
Disp_Temperature()
{
display[4]=temp_data[0]&0x0f;
display[0]=ditab[display[4]]; //查表得小数位的值
display[4]=((temp_data[0]&0xf0)>>4)|((temp_data[1]&0x0f)
