ruben91
Junior Member level 3
Hello everyone, im totally new to this pic microcontroller programming, I have tried to do a project
to obtain distance from HC-SR04 ultrasonic sensor. I Have start with the basic to display the timer value for the certain distance first. But i'm stucked here not getting the out put displayed in hypeterminal, Please some one help ..
im getting out like this
im using microchip pic18f4580 with sk40c cytron board and HC-SR04 ultrasonic sensor
software:mplab ide c18 compiler and pickit2
to obtain distance from HC-SR04 ultrasonic sensor. I Have start with the basic to display the timer value for the certain distance first. But i'm stucked here not getting the out put displayed in hypeterminal, Please some one help ..
im getting out like this
im using microchip pic18f4580 with sk40c cytron board and HC-SR04 ultrasonic sensor
software:mplab ide c18 compiler and pickit2
Code:
#include <p18f4580.h>
#include <usart.h>
#include <delays.h>
#include <stdio.h>
#include <stdlib.h>
#pragma config OSC= HS
#pragma config WDT=OFF
#pragma config LVP=OFF
void T0Delay10us(void);
void T0Delay5ms(void);
void uart(void);
void Call_Init_PIC (void);
void Call_Init_USART (void);
void uart(void);
#define Trig PORTCbits.RC0
//ECHO is TRISCbits.TRISC2=1; //CCP1 input pin
void main(void)
{
unsigned char a,b;
CCP1CON=0x05;
T3CON=0x0;
T1CON=0x0;
TRISCbits.TRISC2=1; //CCP1 input pin
CCPR1L=0;
CCPR1H=0;
while(1)
{
uart();
Call_Init_PIC ();
TMR1H=0;
TMR1L=0;
Trig=1;
T0Delay10us();
Trig=0;
PIR1bits.CCP1IF=0;
while(PIR1bits.CCP1IF=0);
T1CONbits.TMR1ON=1;
PIR1bits.CCP1IF=0;
while(PIR1bits.CCP1IF=0);
T1CONbits.TMR1ON=0;
a=CCPR1L;
b=CCPR1H;
while (1)
{
printf("ULTRA SONIC SENSOR = %5d",a);
printf("XXXXXX");
printf("ULTRA SONIC SENSOR = %5d",b);
Delay10KTCYx(255);
}
}
//PIR1bits.TMR1IF=0;
T0Delay5ms();
}
void Call_Init_PIC (void)
{
TRISCbits.TRISC2=0;
TRISCbits.TRISC0=0;
}
void uart(void)
{
TXSTA=0B00100000;
SPBRG=32;
TRISCbits.RC6=0;
TXSTAbits.TXEN=1;
RCSTAbits.SPEN=1;
}
void T0Delay10us()
{
T0CON=0x08;
TMR0H=0XFF;
TMR0L=0XCE;
T0CONbits.TMR0ON=1;
while(INTCONbits.TMR0IF==0);
T0CONbits.TMR0ON=0;
INTCONbits.TMR0IF=0;
}
void T0Delay5ms()
{
T0CON=0x08;
TMR0H=0X9E;
TMR0L=0X58;
T0CONbits.TMR0ON=1;
while(INTCONbits.TMR0IF==0);
T0CONbits.TMR0ON=0;
INTCONbits.TMR0IF=0;
}
