PING Parallax with LCD Display

Simple C Programming Language test PING Parallax with LCD Display16x2 Char

Step to make project :

• Open  CodeVisionAVR C Compiler
• Click  File -> New
• Chose project OK

• Click Yes

• 
• Then  Setting like this picture , “chose Generate,Save and Exit”

             Example : Ping.c (for file source 

                             Ping.prj (for  file project)

                             Ping.cwp (for file Code Wizard Project)

#include <mega8535.h>
#include delay.h>
#include <stdio.h>
// Alphanumeric LCD Module functions
#asm
.equ __lcd_port=0x1B ;PORTA
#endasm
#include <lcd.h>
// Declare your global variables here
#define SigOut PORTB.0
#define SigIn PINB.0
#define DirSig DDRB.0
unsigned int counter;
float distance;
unsigned char Row1[16];
unsigned char Row2[16];
void main(void)
{
// Declare your local variables here
// Input/Output Ports initialization
// Port A initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTA=0x00;
DDRA=0x00;
// Port B initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTB=0x00;
DDRB=0x00;
// Port C initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTC=0x00;
DDRC=0x00;
// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTD=0x00;
DDRD=0x00;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=FFh
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer 1 Stopped
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer 2 Stopped
// Mode: Normal top=FFh
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
MCUCR=0x00;
MCUCSR=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// LCD module initialization
lcd_init(16);
While (1) {
// Place your code here
counter=0; //Initial value
DirSig=1; //Set as output
SigOut=1;
delay_us(5);
SigOut=0;
DirSig=0; //Set as input
SigOut=1; //Pullup activated
while (SigIn==0)
{}
while (SigIn==1)
{counter++;}
// V=344.424m/s
distance=(counter*0.034442); //clock 4,0000 Mhz
//distance=(counter*0.034442)/2; //clock 11,0592 Mhz
sprintf(Row1,"Counter=%5d uS",counter);
sprintf(Row2,"Distance: %3.2f cm",distance);
lcd_gotoxy(0,0);lcd_puts(Row1);
lcd_gotoxy(0,1);lcd_puts(Row2);
delay_ms(200);
lcd_clear();
};
}