#include <pic.h>
#use delay(clock=20000000)
#fuses hs,nowdt,nolvp,noprotect, nobrownout
#use rs232(baud=9600,xmit=pin_c6,rcv=pin_c7, parity=n)
void main()
{
int count=0;
while(true)
{
printf("\f**Welcome to Malaysia**\n\r");
printf("**counter value is %u **", count);
count+=1;
delay_ms(1000);
}
}
Then, PIC need to check the outgoing character from PC to PIC.
#include <pic.h>
#use delay(clock=20000000)
#fuses hs,nowdt,nolvp,noprotect
#byte portb=6
#byte portc=7
#use rs232(baud=9600,xmit=pin_c6,rcv=pin_c7, parity=n)
#include "flex_lcd.c"
int mystatus=0; //here can't declare byte coz not detected by compiler
char mydata;
void main()
{
int count=0;
lcd_init();
printf("Enter your character : A or S or Z or X");
lcd_gotoxy(1,1);
lcd_putc("Testing");
while(true)
{
if(kbhit()) //monitor incoming charactor from RS232
{
mydata=toupper(getch()); //receive charactor dan save in mydata
printf("\n\rYou entered: %c",mydata); //display on hyper terminal
count++;
mystatus=1;
}
if (mystatus==1)
{
if(mydata=='A')
{ output_high(pin_c4);
lcd_gotoxy(1,2);
lcd_putc("led on");
} //led on
if (mydata=='S')
{ output_low(pin_c4);
lcd_gotoxy(1,2);
lcd_putc("led off");
} //led off
if (mydata=='Z')
{ output_high(pin_c3);
lcd_gotoxy(1,2);
lcd_putc("relay on");
} //buzzer on
if (mydata=='X')
{ output_low(pin_c3);
lcd_gotoxy(1,2);
lcd_putc("relay off");
} //buzzer off
mystatus=0;
}//end if
}//end while
}//end void main
