ADC C programming using PIC18 and SK40C

[ghostajip]

can anyone help me to solve this problem. it's always failed to build and i dont know what wrong with my program. maybe i miss something..

for your reference.
- MPLAB IDE v8.85
- im using infrared sensor 5v from cytron
- using vcc = VDD SK40c, GND and Singal from ir sensor i connect to RA0
- im try to make LED at port C on when sensor detect something.


this my first program.

CODE: SELECT_ALL_CODE

#include<p18f4580.h>
void DelayADC(unsigned int);
void main (void);
   {
   TRISB=0;
   TRISD=0;
   TRISAbits.TRISA0=0;
   ADCON0=0x81;
   ADCCON1=0xCE;      //right justify,AN0=analog

   while(1);
      {
      DelayADC(1);
      ADCONbits.GO=1;   //start converting
      while (ADCONbits.DONE == 1)
      PORTC=ADRESL;
      PORTD=ADRESH;
      DelayADC(250);
      }   
            
      
         
   }



void DelayADC(unsigned int itime)
{
   unsigned int i,j;
   for(i=0;i<itime;i++)
      for(j=0;j<300;j++);
}

[zhenning]

can anyone help me to solve this problem. it's always failed to build and i dont know what wrong with my program. maybe i miss something..

for your reference.
- MPLAB IDE v8.85
- im using infrared sensor 5v from cytron
- using vcc = VDD SK40c, GND and Singal from ir sensor i connect to RA0
- im try to make LED at port C on when sensor detect something.


this my first program.

CODE: SELECT_ALL_CODE

#include<p18f4580.h>
void DelayADC(unsigned int);
void main (void);
   {
   TRISB=0;
   TRISD=0;
   TRISAbits.TRISA0=0;
   ADCON0=0x81;
   ADCCON1=0xCE;      //right justify,AN0=analog

   while(1);
      {
      DelayADC(1);
      ADCONbits.GO=1;   //start converting
      while (ADCONbits.DONE == 1)
      PORTC=ADRESL;
      PORTD=ADRESH;
      DelayADC(250);
      }   
            
      
         
   }



void DelayADC(unsigned int itime)
{
   unsigned int i,j;
   for(i=0;i<itime;i++)
      for(j=0;j<300;j++);
}

Whats the errors? Did you download C compiler for MPLAB: HiTech C,or MCC18?

[ghostajip]

of course im using MCC18. the program failed to build because syntax error. i dont know what wrong or missing.

CODE: SELECT_ALL_CODE

Executing: "C:\Program Files (x86)\Microchip\mplabc18\v3.43\bin\mcc18.exe" -p=18F4580 /i"C:\MCC18\H" "xx.c" -fo="xx.o" -D__DEBUG -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa-
C:\Users\User\Desktop\C prgram mini\xx.c:4:Error: syntax error
Halting build on first failure as requested.BUILD FAILED

when i click at blue link to identify the problem, it show me to this line

CODE: SELECT_ALL_CODE

#include<p18f4580.h>
void DelayADC(unsigned int);
void main (void);
  {                      //  <<<<<<<< this line >>
   TRISB=0;
   TRISD=0;
   TRISAbits.TRISA0=0;
   ADCON0=0x81;
   ADCCON1=0xCE;   

[zhenning]

void main (void);

void main(void){ } ? No?

Why there is a semi-colon after the (void)?

[ghostajip]

void main (void);

void main(void){ } ? No?

Why there is a semi-colon after the (void)?

ok i delete semi colon, sory i forget about that.
yes but syntax error again

CODE: SELECT_ALL_CODE

void main (void)
{
   TRISB=0;
   TRISD=0;
   TRISAbits.TRISA0=0;
   ADCON0=0x81;
   ADCCON1=0xCE;
   {
      //same program
   }
}

[ghostajip]

can anyone show me how to program ADC in c programming..
i can learn my mistake

[zhenning]

void main (void);

void main(void){ } ? No?

Why there is a semi-colon after the (void)?

ok i delete semi colon, sory i forget about that.
yes but syntax error again

CODE: SELECT_ALL_CODE

void main (void)
{
   TRISB=0;
   TRISD=0;
   TRISAbits.TRISA0=0;
   ADCON0=0x81;
   ADCCON1=0xCE;
   {
      //same program
   }
}

Please post the error also

[ghostajip]

for your info.

[zhenning]

for your info.

Right. Where is your semi-colon after your function declaration: void DelayADC(unsigned int);? after your #include

[robosang]

I spotted a few too... please take care of the semi-colon..... You miss a few in your code.