about Hi-Tech PicC-lite

[bjerkely]

I'm currently using Hi-Tech PicC-lite , I compile my code with no error and use Proteus as simulator and they all work, everything is so fine in theory but when I try the same code in a circuit on bread board nothing seems to work,I can't even blink a LED .But When I use assembly instead of C , I get the LED blinking.

I can't guess the problem!!!

 

[Cortex]

check TrisX
Mclr
and post ur code if this dont resolve ur problem

 

[Davood Amerion]

Errorless compiling does not mean your code is correct!
you may forgot something. or dont initialize correctly.
if you post your code we can help you better.

 

[bjerkely]

I just tried the code below on board,led on RB1 in continually ON,it's not blinking.

#include <pic.h>
#include <delay.h>
#include <delay.c>

unsigned char i;
void main(void){
TRISB=0;

for(i=20 ; i>=0;--i){
RB1=1;
DelayMs(500); /*500ms delay*/
RB1=0;
DelayMs(500);
}
while(1){}
}

Thanx in advance...

 

[Davood Amerion]

Hi bjerkely,
First:
DelayMs(unsigned char) get integer not grater than 255
you can try two of them with value 250.

Second:
in your code you do not define microcontroller (for examle)
#define _16F877

Third:
I dont remember how RB1 (RBx) used, so
i suggest try using " PORTB = 0x02; " instead of " RB1 = 1 "

Regards,
داود عامریون

 

[bjerkely]

Thank you Davood. I'll try again with remarks in hand...Besides how can I define the crystal or the exact configuration word ??

( __config _XT_OSC & _WDT_OFF & _PWRTE_OFF)

 

[rfmw]

check that your oscillator is running. If you didn't change default clock frequency setting, you should have 4MHz crystal for 500Ms to be correct