hemnath
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Sorry for posting this post again. I did get any solution from my recent post. So i think re-posting the post again will get some results. Please help in configuring the registers with PIC CCP module in Capture mode.
HTML:
#include "18f2520.h"
#include "f2420_regs.h"
#fuses INTRC
#use delay(clock=4000000)
#define RS PIN_A2
#define EN PIN_A1
void lcd_init();
void lcd_cmd(unsigned char);
void lcd_data(unsigned char);
unsigned int16 value;
unsigned int8 high_byte, low_byte;
void main()
{
lcd_init();
TRIS_C2 = 1; // PIN C2 configured as input for capture mode
TRISB = 0;
CCP1CON = 0b00000101; // Capture mode, every rising edge
CCPR1H = 0;
CCPR1L = 0;
T1CON = 0b11001000; // 16-Bit, 1:1 Prescale value
while(1)
{
TMR1H = 0;
TMR1L = 0;
CCP1IF = 0; // Interrupt flag is cleared
while(CCP1IF == 0); // waits till Interrupt flag gets cleared
TMR1ON = 1; // Timer1 ON
CCP1IF = 0; // Interrupt flag is cleared
while(CCP1IF == 0); // waits till Interrupt flag gets cleared
TMR1ON = 0; // Timer1 OFF
low_byte = CCPR1L;
high_byte = CCPR1H;
value = ((high_byte * 256) + low_byte);
CCP1IE = 0;
CCP1IF = 0;
lcd_cmd(0x01);
lcd_cmd(0x80);
printf(lcd_data,"%lu secs",value);
delay_ms(1000);
}
}
void lcd_init()
{
lcd_cmd(0x30); // Configure the LCD in 8-bit mode, 1 line and 5x7 font
//lcd_cmd(0x28);
lcd_cmd(0x0c); // display on and cursor off
lcd_cmd(0x01); // clear display screen
lcd_cmd(0x06); // increment cursor
lcd_cmd(0x80); // set cursor to 1st line
}
void lcd_cmd(unsigned char c)
{
output_b(c);
output_low(RS);
output_high(EN);
delay_ms(15);
output_low(EN);
}
void lcd_data(unsigned char z)
{
output_b(z);
output_high(RS);
output_high(EN);
delay_ms(15);
output_low(EN);
}