C51 COMPILER V6.12 TX_1BDS18B20 12/01/2006 19:30:57 PAGE 1 C51 COMPILER V6.12, COMPILATION OF MODULE TX_1BDS18B20 OBJECT MODULE PLACED IN C:\DOCUME~1\LD9149~1.XC-\桌面\51\手册程序\八BA6B~1.DS1\TX-1BDS18B20.OBJ COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE C:\DOCUME~1\LD9149~1.XC-\桌面\51\手册程序\八BA6B~1.DS1\TX-1BDS18B20.C DB SB - OE stmt level source 1 //安装目录下的EXE文件打开后可在电脑上显示当前温度值 2 #include 3 #define uchar unsigned char 4 #define uint unsigned int 5 sbit DS=P2^2; //define interface 6 uint temp; // variable of temperature 7 uchar flag1; // sign of the result positive or negative 8 sbit dula=P2^6; 9 sbit wela=P2^7; 10 unsigned char code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d, 11 0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; 12 unsigned char code table1[]={0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd, 13 0x87,0xff,0xef}; 14 15 void delay(uint count) //delay 16 { 17 1 uint i; 18 1 while(count) 19 1 { 20 2 i=200; 21 2 while(i>0) 22 2 i--; 23 2 count--; 24 2 } 25 1 } 26 ///////功能:串口初始化,波特率9600，方式1/////// 27 void Init_Com(void) 28 { 29 1 TMOD = 0x20; 30 1 PCON = 0x00; 31 1 SCON = 0x50; 32 1 TH1 = 0xFd; 33 1 TL1 = 0xFd; 34 1 TR1 = 1; 35 1 } 36 37 void dsreset(void) //send reset and initialization command 38 { 39 1 uint i; 40 1 DS=0; 41 1 i=103; 42 1 while(i>0)i--; 43 1 DS=1; 44 1 i=4; 45 1 while(i>0)i--; 46 1 } 47 48 bit tmpreadbit(void) //read a bit 49 { 50 1 uint i; 51 1 bit dat; 52 1 DS=0;i++; //i++ for delay 53 1 DS=1;i++;i++; 54 1 dat=DS; C51 COMPILER V6.12 TX_1BDS18B20 12/01/2006 19:30:57 PAGE 2 55 1 i=8;while(i>0)i--; 56 1 return (dat); 57 1 } 58 59 uchar tmpread(void) //read a byte date 60 { 61 1 uchar i,j,dat; 62 1 dat=0; 63 1 for(i=1;i<=8;i++) 64 1 { 65 2 j=tmpreadbit(); 66 2 dat=(j<<7)|(dat>>1); //读出的数据最低位在最前面，这样刚好一个字节在DAT里 67 2 } 68 1 return(dat); 69 1 } 70 71 void tmpwritebyte(uchar dat) //write a byte to ds18b20 72 { 73 1 uint i; 74 1 uchar j; 75 1 bit testb; 76 1 for(j=1;j<=8;j++) 77 1 { 78 2 testb=dat&0x01; 79 2 dat=dat>>1; 80 2 if(testb) //write 1 81 2 { 82 3 DS=0; 83 3 i++;i++; 84 3 DS=1; 85 3 i=8;while(i>0)i--; 86 3 } 87 2 else 88 2 { 89 3 DS=0; //write 0 90 3 i=8;while(i>0)i--; 91 3 DS=1; 92 3 i++;i++; 93 3 } 94 2 95 2 } 96 1 } 97 98 void tmpchange(void) //DS18B20 begin change 99 { 100 1 dsreset(); 101 1 delay(1); 102 1 tmpwritebyte(0xcc); // address all drivers on bus 103 1 tmpwritebyte(0x44); // initiates a single temperature conversion 104 1 } 105 106 uint tmp() //get the temperature 107 { 108 1 float tt; 109 1 uchar a,b; 110 1 dsreset(); 111 1 delay(1); 112 1 tmpwritebyte(0xcc); 113 1 tmpwritebyte(0xbe); 114 1 a=tmpread(); 115 1 b=tmpread(); 116 1 temp=b; C51 COMPILER V6.12 TX_1BDS18B20 12/01/2006 19:30:57 PAGE 3 117 1 temp<<=8; //two byte compose a int variable 118 1 temp=temp|a; 119 1 tt=temp*0.0625; 120 1 temp=tt*10+0.5; 121 1 return temp; 122 1 } 123 124 void readrom() //read the serial 125 { 126 1 uchar sn1,sn2; 127 1 dsreset(); 128 1 delay(1); 129 1 tmpwritebyte(0x33); 130 1 sn1=tmpread(); 131 1 sn2=tmpread(); 132 1 } 133 134 135 void delay10ms() //delay 136 { 137 1 uchar a,b; 138 1 for(a=10;a>0;a--) 139 1 for(b=60;b>0;b--); 140 1 } 141 142 void display(uint temp) //显示程序 143 { 144 1 uchar A1,A2,A2t,A3,ser; 145 1 ser=temp/10; 146 1 SBUF=ser; 147 1 A1=temp/100; 148 1 A2t=temp%100; 149 1 A2=A2t/10; 150 1 A3=A2t%10; 151 1 dula=0; 152 1 P0=table[A1]; //显示百位 153 1 dula=1; 154 1 dula=0; 155 1 156 1 wela=0; 157 1 P0=0x7e; 158 1 wela=1; 159 1 wela=0; 160 1 delay(1); 161 1 162 1 dula=0; 163 1 P0=table1[A2]; //显示十位 164 1 dula=1; 165 1 dula=0; 166 1 167 1 wela=0; 168 1 P0=0x7d; 169 1 wela=1; 170 1 wela=0; 171 1 delay(1); 172 1 173 1 P0=table[A3]; //显示个位 174 1 dula=1; 175 1 dula=0; 176 1 177 1 P0=0x7b; 178 1 wela=1; C51 COMPILER V6.12 TX_1BDS18B20 12/01/2006 19:30:57 PAGE 4 179 1 wela=0; 180 1 delay(1); 181 1 } 182 183 184 void main() 185 { 186 1 uchar a; 187 1 Init_Com(); 188 1 do 189 1 { 190 2 tmpchange(); 191 2 // delay(200); 192 2 for(a=10;a>0;a--) 193 2 { display(tmp()); 194 3 } 195 2 } while(1); 196 1 } C51 COMPILER V6.12 TX_1BDS18B20 12/01/2006 19:30:57 PAGE 5 NAME CLASS MSPACE TYPE OFFSET SIZE ==== ===== ====== ==== ====== ==== dsreset. . . . . . . . . . . . . . . . PUBLIC CODE PROC 0000H ----- i. . . . . . . . . . . . . . . . . . * REG * DATA U_INT 0006H 2 P0 . . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 0080H 1 P1 . . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 0090H 1 P2 . . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 00A0H 1 P3 . . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 00B0H 1 T0 . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00B4H 1 AC . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00D6H 1 T1 . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00B5H 1 T2 . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 0090H 1 EA . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00AFH 1 table. . . . . . . . . . . . . . . . . PUBLIC CODE ARRAY 0000H 16 IE . . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 00A8H 1 EXF2 . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00CEH 1 RD . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00B7H 1 Init_Com . . . . . . . . . . . . . . . PUBLIC CODE PROC 0000H ----- DS . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00A2H 1 ES . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00ACH 1 _tmpwritebyte. . . . . . . . . . . . . PUBLIC CODE PROC 0000H ----- dat. . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0007H 1 i. . . . . . . . . . . . . . . . . . * REG * DATA U_INT 0002H 2 j. . . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0006H 1 testb. . . . . . . . . . . . . . . . AUTO DATA BIT 0000H 1 IP . . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 00B8H 1 RI . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 0098H 1 INT0 . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00B2H 1 CY . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00D7H 1 TI . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 0099H 1 INT1 . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00B3H 1 PS . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00BCH 1 T2EX . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 0091H 1 OV . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00D2H 1 main . . . . . . . . . . . . . . . . . PUBLIC CODE PROC 0000H ----- a. . . . . . . . . . . . . . . . . . AUTO DATA U_CHAR 0000H 1 dula . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00A6H 1 C_T2 . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00C9H 1 WR . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00B6H 1 wela . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00A7H 1 RCLK . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00CDH 1 TCLK . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00CCH 1 SBUF . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 0099H 1 PCON . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 0087H 1 tmpreadbit . . . . . . . . . . . . . . PUBLIC CODE PROC 0000H ----- i. . . . . . . . . . . . . . . . . . * REG * DATA U_INT 0006H 2 dat. . . . . . . . . . . . . . . . . AUTO DATA BIT 0000H 1 SCON . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 0098H 1 TMOD . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 0089H 1 TCON . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 0088H 1 temp . . . . . . . . . . . . . . . . . PUBLIC DATA U_INT 0000H 2 table1 . . . . . . . . . . . . . . . . PUBLIC CODE ARRAY 0010H 10 tmpchange. . . . . . . . . . . . . . . PUBLIC CODE PROC 0000H ----- IE0. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 0089H 1 IE1. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 008BH 1 CP_RL2 . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00C8H 1 ET0. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00A9H 1 ET1. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00ABH 1 TF0. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 008DH 1 C51 COMPILER V6.12 TX_1BDS18B20 12/01/2006 19:30:57 PAGE 6 NAME CLASS MSPACE TYPE OFFSET SIZE ==== ===== ====== ==== ====== ==== ET2. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00ADH 1 TF1. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 008FH 1 TF2. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00CFH 1 RB8. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 009AH 1 flag1. . . . . . . . . . . . . . . . . PUBLIC DATA U_CHAR 0002H 1 EX0. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00A8H 1 IT0. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 0088H 1 TH1. . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 008DH 1 TB8. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 009BH 1 EX1. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00AAH 1 IT1. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 008AH 1 P. . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00D0H 1 SM0. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 009FH 1 SM1. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 009EH 1 TL1. . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 008BH 1 tmp. . . . . . . . . . . . . . . . . . PUBLIC CODE PROC 0000H ----- tt . . . . . . . . . . . . . . . . . AUTO DATA FLOAT 0000H 4 a. . . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0003H 1 b. . . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0007H 1 SM2. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 009DH 1 PT0. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00B9H 1 delay10ms. . . . . . . . . . . . . . . PUBLIC CODE PROC 0000H ----- a. . . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0007H 1 b. . . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0006H 1 PT1. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00BBH 1 RS0. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00D3H 1 PT2. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00BDH 1 TR0. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 008CH 1 RS1. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00D4H 1 TR1. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 008EH 1 TR2. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00CAH 1 PX0. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00B8H 1 PX1. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00BAH 1 _display . . . . . . . . . . . . . . . PUBLIC CODE PROC 0000H ----- temp . . . . . . . . . . . . . . . . * REG * DATA U_INT 0002H 2 A1 . . . . . . . . . . . . . . . . . AUTO DATA U_CHAR 0000H 1 A2 . . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0003H 1 A2t. . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0007H 1 A3 . . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0002H 1 ser. . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0007H 1 EXEN2. . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00CBH 1 REN. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 009CH 1 T2CON. . . . . . . . . . . . . . . . . SFR DATA U_CHAR 00C8H 1 readrom. . . . . . . . . . . . . . . . PUBLIC CODE PROC 0000H ----- sn1. . . . . . . . . . . . . . . . . AUTO DATA U_CHAR 0000H 1 sn2. . . . . . . . . . . . . . . . . AUTO DATA U_CHAR 0001H 1 RXD. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00B0H 1 TXD. . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00B1H 1 tmpread. . . . . . . . . . . . . . . . PUBLIC CODE PROC 0000H ----- i. . . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0004H 1 j. . . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0007H 1 dat. . . . . . . . . . . . . . . . . * REG * DATA U_CHAR 0005H 1 _delay . . . . . . . . . . . . . . . . PUBLIC CODE PROC 0008H ----- count. . . . . . . . . . . . . . . . * REG * DATA U_INT 0006H 2 i. . . . . . . . . . . . . . . . . . * REG * DATA U_INT 0004H 2 F0 . . . . . . . . . . . . . . . . . . ABSBIT ----- BIT 00D5H 1 PSW. . . . . . . . . . . . . . . . . . SFR DATA U_CHAR 00D0H 1 C51 COMPILER V6.12 TX_1BDS18B20 12/01/2006 19:30:57 PAGE 7 MODULE INFORMATION: STATIC OVERLAYABLE CODE SIZE = 515 ---- CONSTANT SIZE = 26 ---- XDATA SIZE = ---- ---- PDATA SIZE = ---- ---- DATA SIZE = 3 8 IDATA SIZE = ---- ---- BIT SIZE = ---- 2 END OF MODULE INFORMATION. C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)