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ANITHAParticipant
y u r enabling the interrupt
March 7, 2014 at 6:08 am in reply to: MICRO CONTROLLER BASED ULTRASONIC DISTANCE MEASUREMENT SYSTEM #11226ANITHAParticipant#include<reg52.h>#define First_Line 0x80#define Second_Line 0xc0#define Curser_On 0x0f#define Curser_Off 0x0c#define Clear_Display 0x01#define Data_Port P0sbit Lcd_rs = P2^7;sbit Lcd_rw = P2^6;sbit Lcd_en = P2^5;sbit RX= P3^2;sbit TX= P3^5;void Distance_Measure();void Lcd8_Init();void Lcd8_Command(unsigned char);void Lcd8_Write(unsigned char,unsigned char);void Lcd8_Display(unsigned char,const unsigned char*,unsigned int);void Lcd8_Decimal2(unsigned char,unsigned char);void Lcd8_Decimal3(unsigned char,unsigned char);void Lcd8_Decimal4(unsigned char,unsigned int);void Delay(unsigned int);void del();unsigned char i,inch1,inch2,result,obj_distance,rept,sec,j,a=0,c=0,kc,cu=0xc0,l,e[20],num[20],n,v[20];unsigned long int count=0,count1=0;void main(){EA=1;ET0=1;TMOD=0x01;TH0=TL0=0x00;TR0=1;relay2=0;Lcd8_Init();Delay(65000);Lcd8_Display(0x80,”Ultrasonic “,16);Lcd8_Display(0xc0,” “,16);Delay(65000);Delay(65000);Lcd8_Display(0xC0,”Distance: “,16);while(1){Distance_Measure();}}void Distance_Measure(){count=count1=0;TH0=0x00;TL0=0x00;TR0=0;for(i=0;i<10;i++){TX=0;Delay(1000);TX=1;Delay(10);TX=0;while(RX==0);TR0=1;while(RX==1);TR0=0;count=TH0<<8;count=count|TL0;TH0=TL0=0x00;count1=count1+count;Delay(5000);}count=count1/10;inch1=count%10000/1000;inch2=count%1000/100;result=(inch1*10)+inch2;obj_distance=result-2;Lcd8_Decimal3(0XCb,obj_distance);}void Lcd8_Init(){Lcd8_Command(0x38); //to select function setLcd8_Command(0x06); //entry mode setLcd8_Command(0x0c); //display onLcd8_Command(0x01); //clear display}void Lcd8_Command(unsigned char com){Data_Port=com;Lcd_en=1;Lcd_rs=Lcd_rw=0;Delay(125);Lcd_en=0;Delay(125);}void Lcd8_Write(unsigned char com,unsigned char lr){Lcd8_Command(com);Data_Port=lr; // DataLcd_en=Lcd_rs=1;Lcd_rw=0;Delay(125);Lcd_en=0;Delay(125);}void Lcd8_Display(unsigned char com,const unsigned char *word,unsigned int n){unsigned char Lcd_i;for(Lcd_i=0;Lcd_i<n;Lcd_i++){Lcd8_Write(com+Lcd_i,word[Lcd_i]);}}void Lcd8_Decimal2(unsigned char com,unsigned char val){unsigned int Lcd_hr,Lcd_t,Lcd_o;Lcd_hr=val%100;Lcd_t=Lcd_hr/10;Lcd_o=Lcd_hr%10;Lcd8_Write(com,Lcd_t+0x30);Lcd8_Write(com+1,Lcd_o+0x30);}void Lcd8_Decimal3(unsigned char com,unsigned char val){unsigned int Lcd_h,Lcd_hr,Lcd_t,Lcd_o;Lcd_h=val/100;Lcd_hr=val%100;Lcd_t=Lcd_hr/10;Lcd_o=Lcd_hr%10;Lcd8_Write(com,Lcd_h+0x30);Lcd8_Write(com+1,Lcd_t+0x30);Lcd8_Write(com+2,Lcd_o+0x30);}i am not getting output for this program can u pls explain mevoid Delay(unsigned int del){while(del–);}ANITHAParticipanti need c code for measuring the distance by using ultrasonic sensor……………can u pls send me
ANITHAParticipant#include<reg52.h>#define First_Line 0x80#define Second_Line 0xc0#define Curser_On 0x0f#define Curser_Off 0x0c#define Clear_Display 0x01#define Data_Port P0sbit Lcd_rs = P2^7;sbit Lcd_rw = P2^6;sbit Lcd_en = P2^5;sbit RX= P3^2;sbit TX= P3^5;void Distance_Measure();void Lcd8_Init();void Lcd8_Command(unsigned char);void Lcd8_Write(unsigned char,unsigned char);void Lcd8_Display(unsigned char,const unsigned char*,unsigned int);void Lcd8_Decimal2(unsigned char,unsigned char);void Lcd8_Decimal3(unsigned char,unsigned char);void Lcd8_Decimal4(unsigned char,unsigned int);void Delay(unsigned int);void del();unsigned char i,inch1,inch2,result,obj_distance,rept,sec,j,a=0,c=0,kc,cu=0xc0,l,e[20],num[20],n,v[20];unsigned long int count=0,count1=0;void main(){EA=1;ET0=1;TMOD=0x01;TH0=TL0=0x00;TR0=1;relay2=0;Lcd8_Init();Delay(65000);Lcd8_Display(0x80,”Ultrasonic “,16);Lcd8_Display(0xc0,” “,16);Delay(65000);Delay(65000);Lcd8_Display(0xC0,”Distance: “,16);while(1){Distance_Measure();}}void Distance_Measure(){count=count1=0;TH0=0x00;TL0=0x00;TR0=0;for(i=0;i<10;i++){TX=0;Delay(1000);TX=1;Delay(10);TX=0;while(RX==0);TR0=1;while(RX==1);TR0=0;count=TH0<<8;count=count|TL0;TH0=TL0=0x00;count1=count1+count;Delay(5000);}count=count1/10;inch1=count%10000/1000;inch2=count%1000/100;result=(inch1*10)+inch2;obj_distance=result-2;Lcd8_Decimal3(0XCb,obj_distance);}void Lcd8_Init(){Lcd8_Command(0x38); //to select function setLcd8_Command(0x06); //entry mode setLcd8_Command(0x0c); //display onLcd8_Command(0x01); //clear display}void Lcd8_Command(unsigned char com){Data_Port=com;Lcd_en=1;Lcd_rs=Lcd_rw=0;Delay(125);Lcd_en=0;Delay(125);}void Lcd8_Write(unsigned char com,unsigned char lr){Lcd8_Command(com);Data_Port=lr; // DataLcd_en=Lcd_rs=1;Lcd_rw=0;Delay(125);Lcd_en=0;Delay(125);}void Lcd8_Display(unsigned char com,const unsigned char *word,unsigned int n){unsigned char Lcd_i;for(Lcd_i=0;Lcd_i<n;Lcd_i++){Lcd8_Write(com+Lcd_i,word[Lcd_i]);}}void Lcd8_Decimal2(unsigned char com,unsigned char val){unsigned int Lcd_hr,Lcd_t,Lcd_o;Lcd_hr=val%100;Lcd_t=Lcd_hr/10;Lcd_o=Lcd_hr%10;Lcd8_Write(com,Lcd_t+0x30);Lcd8_Write(com+1,Lcd_o+0x30);}void Lcd8_Decimal3(unsigned char com,unsigned char val){unsigned int Lcd_h,Lcd_hr,Lcd_t,Lcd_o;Lcd_h=val/100;Lcd_hr=val%100;Lcd_t=Lcd_hr/10;Lcd_o=Lcd_hr%10;Lcd8_Write(com,Lcd_h+0x30);Lcd8_Write(com+1,Lcd_t+0x30);Lcd8_Write(com+2,Lcd_o+0x30);}void Delay(unsigned int del){while(del–);}i am not getting output for this code.here u r using timer 1 pin is tx=P3^5; but tx pin will always high then u r using rx=P3^2;it is low after detecting the object it will be high.ET0=1;u r not using the timer 1 pin then how the interrupt will enable…………….while i am debugging this program i got access violation error at lcd int();….can you please explain for me sir i cannot understand sir.pls sirMarch 7, 2014 at 5:26 am in reply to: MICRO CONTROLLER BASED ULTRASONIC DISTANCE MEASUREMENT SYSTEM #11223ANITHAParticipantcan you give me code for measuring the ultrasonic distance
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Viewing 5 posts - 1 through 5 (of 5 total)