Pic te Cikis Sorunu

[yoket]

S.A arkadaslar programi pic e yukluyorum (16f877) ama tum bacaklar 0.2 ile 1.2 arasi rasgele degerler aliyor acaba programimda mi sorun var diye basini burada paylasiyorum simdiden cok tesekkurler

#include <htc.h>
#include "delay.h"   // Gecikme kütüphanesi tanımlanıyor
#include "lcd.h"   // LCD kütüphanesi tanımlanıyor

int voltaj_1;
int voltaj_2;
int gonderr;
char i=1;
   
void main(void)      // Ana fonksiyon alanı
{   
   TRISA=0x03;      // Analog giriş için
   TRISB=0x00;      // LCD için çıkış
   TRISC=0x00;
   PORTB=0x00;
   PORTC=0x00;
   
   PCFG3=0;      // AN0 ve AN1 analog
   PCFG2=1;
   PCFG1=0;
   PCFG0=0;
   
   ADFM=1;         // Sağa dayalı yazılıyor
   ADON=1;         // ADC açılıyor
   
   ADIF=0;         // ADC bayrağı temizleniyor
   ADIE=1;         // ADC kesmesi izni veriliyor
   PEIE=1;         // Genel ve yardımcı kesme izinleri veriliyor
   GIE=1;
   
   lcd_init();            // LCD ilk ayarları yapılıyor


.....

buda hex

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:00000001FF

[dnacikaya]

bu durum benim başımada gelmişti. program başlangıcında 250ms bir zaman gecikmesi kulanmama rağmen pin çıkış voltajları 2 voltu geçmiyordu. ana program ve alt programların başlangıçlarına 20ms gecikme ekledim ve bütün pinlerden 5 volt almayı başarmıştım.

birde pic16f877nin besleme uçlarını kontrol edin ondan emin olmak lazım. kolaygelsin.

[mustafa_cmbz]

SEma ve ozellikle pcb cizimini paylasirsan o kisimlaria da bir goz atabiliriz...

[yoket]

yok hocam sadece cikis olmasi gereken bacaklar degil tum bacaklar 0.2 1 arasi gidip geliyo besleme dogru sorun yok pic ucmus desem program yuklerken sorun cikmiyo acaba programda atladigim birsey mi var birde kristali kondansatorsuz kullaniyorum kondansatorle kullanirkende ayni sorun var gerci