[SOLVED] PIC16f886 adc checking problem

[ragav4456]

Hi

When i call the ReadADC() function, controller will restarted. what is the reason?

im using Hitech c compiler and MPLABX software.

Code:

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Code C - [expand]
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#include<htc.h>
#include "adc.h"
 
 
__CONFIG(0x20A4);
__CONFIG(0X0700);
 
unsigned int ReadADC();
unsigned int ReadADC1();
void InitADC ();
 
 
unsigned char ucMenu_flag=0;
unsigned int uiHigh_volt=0,uilow_volt=0,uiDR_Amps=0,uiON_Time=0;
 
void main()
{
    unsigned int value, ivalue=0,Display=0;
 
    TRISA=0x03;
    PORTA=0x00;
    TRISB=0x00;
    PORTB=0x00;
    TRISC=0x01;
    PORTC=0x00;
 
    ANSEL = 0x03;       /* AN0,AN1 as analog pins */
    ANSELH = 0x00;
 
    OSCCON = 0b01101101;    /*Device runing External Osc*/
    OSCTUNE = 0x00;
 
     /* Initialize the ADC */
    InitADC(0);
 
    GIE=1;
    PEIE=1;
 
    while(1)
    {
        for(value=0;value<60000;value++);  //Delay
        ivalue = ReadADC(); 
 
        for(value=0;value<10000;value++);
        
        Display = ReadADC1();
 
        Lcd_Decimal(2,13,3,Display);
 
        for(value=0;value<20000;value++);
    }
}
 
unsigned int ReadADC()
{
 
      unsigned int ADC_VALUE=0;
//            ADCON1=0b10000000;
        ADCON0=0x43;
 
        ADIE        = 1;                                                    /* Masking the interrupt */
        ADIF        = 0;            /* Resetting the ADC interupt bit */
        ADRESL  = 0;            /* Resetting the ADRES value register */
        ADRESH  = 0;
 
        while(!ADIF);       /* Wait for conversion complete */
 
        ADC_VALUE = (ADRESH*256)+ADRESL;
 
    return (ADC_VALUE);     /* Return the value of the ADC process */
}
 
unsigned int ReadADC1()
{
 
      unsigned int ADC1_VALUE=0;
//            ADCON1=0b10000000;
        ADCON0=0x43;
 
        ADIE        = 1;                                                    /* Masking the interrupt */
        ADIF        = 0;            /* Resetting the ADC interupt bit */
        ADRESL  = 0;            /* Resetting the ADRES value register */
        ADRESH  = 0;
 
        while(!ADIF);       /* Wait for conversion complete */
 
        ADC1_VALUE = (ADRESH*256)+ADRESL;
 
    return (ADC1_VALUE);     /* Return the value of the ADC process */
}
 
void InitADC ()
{
        ADCON1=0b10000000;
}

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[unavezmasysale]

Hi,

I am not using PIC for some time ago so I do not remember it, but do you check the watchdog?

Thanks.

 

[poojarai]

Check Configuration bits properly.Your clock mode is different than your code .You mentioned Internal Osc in Configuration bits and OSCCON = 0b01101101; /*Device runing External Osc*/ in your code