[SOLVED] PIC16F877 Basic ADC Problem using C language, MPLAB and ISIS programs

[clarence501]

Hi Guys, can someone help me solve the problem that i have with this program? I can't run the simulation with it and I wonder what's wrong with it.

#include<pic.h>
int tenbit = 0;
void initialize(void);
main()
{
TRISE = 0x4;
ADCON0 = 0xB9;
ADCON1 = 0x80;
}

void initialize(void)
{
ADGO = 1;
while(ADGO)
{}
tenbit = ((ADRESH*256)+ADRESL);
if (tenbit>358)
{
PORTD = 0x00;
}
else
{
PORTD = 0x20;
}
}

These are the links to the ISIS model that I made:
Image - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting

https://obrazki.elektroda.pl/89_1297387134.jpg


I used RE2 as the analog input and my output is RD5.

 

[DineshSL]

Hi clarence501,

You have forgotten to call the function "initialize()" inside main().

Thanks,

 

[clarence501]

This is my new program but still not working. TRISE has 3 ports. How do I configure it if I use RE2?

#include<pic.h>
int x = 0;
int tenbit = 0;
void initialize(void)

{
TRISE = 0x07; //
ADCON0 = 0xB9;
ADCON1 = 0x80;

}
main()

{
initialize();
while(1);
{
ADGO = 1;
while(ADGO)
{}
tenbit = ((ADRESH*256)+ADRESL);
if (tenbit>358)
{
PORTD = 0x00;
}
else
{
PORTD = 0x20;
}
}
}

 

[microlab]

hi

and you did not configured PORTD as output port

ml

 

[clarence501]

guys, i have already solved this problem on my own. hehehe. thanks for the tips though. the only problem was because of the semicolon after "while(1)"