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#include<reg51.h>
sbit ADC_DOUT=P3^0;
sbit ADC_CLK=P3^1;
sbit ADC_CS=P3^2;
extern void WriteAddress(unsigned char x,y);
extern void LcdInitiate(void);
extern void display(char *p);
extern void WriteData(unsigned char y);
unsigned char code bt[]=" Max1241 Test! ";
unsigned char code sj[]="Now Date: V";
unsigned char S;
unsigned char a,b,c;
unsigned char tab[]="0123456789";
unsigned int ADC_Data;
int Read_Max1241()
{
char i;
ADC_CLK=0;
ADC_CS=0;
ADC_Data=0;
while(!ADC_DOUT); //當(dāng)CS=0后，開始轉(zhuǎn)換，DOUT輸出0，轉(zhuǎn)換結(jié)束輸出1，再要有一個(gè)時(shí)鐘后才開始傳輸數(shù)據(jù)
//start output the data
ADC_CLK=1;
ADC_CLK=0;
//傳輸數(shù)據(jù)
for(i=0;i<12;i++)
{
ADC_CLK=1;
ADC_Data<<=1;
ADC_Data |= ADC_DOUT;
ADC_CLK=0;
}
ADC_CS=1;
ADC_CLK=0;
return ADC_Data;
}
void ADC_COUNT()
{
S=(Read_Max1241()*0.00122070312)*100;
a=S/100%10;
b=S/10%10;
c=S%10;
WriteAddress(2,11);
WriteData(tab[a]);
WriteAddress(2,13);
WriteData(tab[b]);
WriteData(tab[c]);
}
void main()
{
LcdInitiate();
WriteAddress(1,1);
display(bt);
WriteAddress(2,1);
display(sj);
WriteAddress(2,12);
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…………限于本文篇幅余下代碼請(qǐng)從51黑下載附件…………

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