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[12]Óà¼Ò´º£®Protel 99 SEµç·Éè¼ÆÊµÓý̳Ì[M]£®ÖйúÌúµÀ³ö°æÉ磬2004£® [13]ÕÅÅàÈÊ£®»ùÓÚ»ã±àÓïÑÔ±à³ÌMCS-51µ¥Æ¬»úÔÀíÓëÓ¦Óã®±±¾©£ºÇ廪´óѧ³ö°æÉ磬2003£®
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[16]F£®Rettig£¬R£®Moos£®Direct thermoelectric gas sensors Design aspects and first gas sensors[M]£®Sens Actuators B£¬2007£®
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#include
#define uchar unsigned char #define uint unsigned int sbit lcden=P2^4;//1602¹Ü½Å¶¨Òå sbit lcdrs=P2^6; sbit lcdws=P2^5;
sbit ds=P3^5;//ds18b20ÐźÅÏß sbit beep=P2^3; //·äÃùÆ÷¹Ü½Å¶¨Òå sbit ACC_7 = ACC^7; //λѰַ¼Ä´æÆ÷¶¨Òå
sbit SCLK = P3^2; // DS1302ʱÖÓÐźŠsbit DIO= P3^3; // DS1302Êý¾ÝÐźŠsbit CE = P3^4; // DS1302Ƭѡ sbit key3=P1^0;//¹¦Äܼü¶¨Òå sbit key4=P1^1;//Ôö´ó¼ü¶¨Òå sbit key5=P1^2;//¼õС¼ü¶¨Òå
uchar shi,fen,miao,year,month,day,week; uchar flag,s1num; uint temp;
float f_temp; uint i; uint d;
uchar code table2[]={0x20,0x20,0x2e,0x20,0xdf,0x43}; uchar code table[]=%uchar code table1[]=\void delay(uint z)//ÑÓʱ1ms {
uint x,y; for(x=z;x>0;x--)
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}
for(y=110;y>0;y--);
void write_com(uchar com)//1602дÃüÁî {
lcdrs=0; lcden=0;
P0=com; delay(5); lcden=1; delay(5); lcden=0; }
void write_data(uchar date)//1602дÊý¾Ý {
lcdrs=1; lcden=0; P0=date; delay(5); lcden=1; delay(5); lcden=0; }
void dsreset(void) //DS18B20£¬³õʼ»¯º¯Êý {
uint i; ds=0; i=103;
while(i>0)i--; ds=1;
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i=4;
while(i>0)i--; }
bit tempreadbit(void)//¶Á1λÊý¾Ýº¯Êý {
uint i; bit dat; ds=0;i++;
ds=1;i++;i++;//i++Æðµ½ÑÓʱ×÷Óà dat=ds;
i=8;while(i>0)i--; return(dat); }
uchar tempread(void) //¶ÁÒ»¸ö×Ö½ÚÊý¾Ýº¯Êý {
uchar i,j,dat; dat=0;
for(i=1;i<=8;i++) { }
return(dat); }
void tempwritebyte(uchar dat) //ÏòDS18B20дһ¸ö×Ö½ÚÊý¾Ýº¯Êý {
uint i; uchar j; bit testb; for(j=1;j<=8;j++)
j=tempreadbit(); dat=(j<<7)|(dat>>1);