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this is the code i developed by myself,is that ok?
#include <pic.h>
#define _XTAL_FREQ 20000000
void pwm_init(void);
void timer_init(void);
int counter;
void main()
{
int i;
pwm_init();
timer_init();
TRISC2=0;
while (1){
CCPR1L=0;
__delay_ms(351);
CCPR1L=65...
So I load tmr0=0 something like that to start timer 0 and then how to reload the timer in that line u mentioned?the isr loop no need to call?it will call itself?
after that consider finished? but when i program and transfer to pic,i connect to cro the rc2 pin doesn't give square wave at all...
reloading mean just called the function name? for example:
void interrupt Timer0_ISR(void)
{
// check and reset interrupt flag
if( ++j > 3 )
j = 0...
#include <pic.h>
#define _XTAL_FREQ 20000000
#define OFFSET 117 // You can vary this and try
//Timer0
//Prescaler 1:1; TMR0 Preload = 124; Actual Interrupt Time : 26.3 us
void pwm_init(void);
void timer_init(void);
void interrupt Timer0_ISR(void);
void display(void);
int i,j,counter...
quite confused...is this in hi-tech universal toolsuite?
can i use this step?
1. Set PWM Duty Cycle to 0%
2. Delay 500ms
3. Set PWM Duty Cycle to 50%
4. Clear counter
5. Check if counter > 120, handle no result, repeat from start
(If counter is > 120 then 120ms have elapsed...
the case 0 is for what?offset is what...?can i use timer 0 to interrupt for 200ms?but why 200ms?and i don't understand about the j...Do timer Reloadings mean reload the timer?
void display(void) {
RD1 = RD2 = 0;
if(i<OFFSET)
RD1=1;
else
RD2=1;
__delay_ms(400);
RD1 = RD2 = 0;
}...
i check with the cro when my hand is about 10cm away from the detector, the wave changed..
you mean when i start send square wave, and when output of receiver is low,start the timer and count the time?
i panic already,don't know how to proceed...and i only manage to detect 10-15cm...zzz...
with the code u given can u give me the full code?i got no idea about it -.-
#include <pic.h>
#define _XTAL_FREQ 20000000
//Timer0
//Prescaler 1:1; TMR0 Preload = 124; Actual Interrupt Time : 26.3 us...
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