Issue on Internal oscillator selection in PIC16f886

[ragav4456]

Hi frnds

I have problem in Internal oscillator selection in PIC16f886. I tried the following code, its not working.
Configuration bits declaration error will come.

Code:

#include <htc.h>

// 13-1 12-0 11-0 10-0 9876-0 5-1 4-1 3-0 100
//__CONFIG(0x2034);
//__CONFIG _CONFIG2(0X0100);

__CONFIG _CONFIG1(FOSC_INTRC_NOCLKOUT & WDTE_OFF & PWRTE_OFF & MCLRE_ON & CP_OFF & CPD_OFF & BOREN_ON & IESO_OFF & FCMEN_ON & LVP_ON)
__CONFIG _CONFIG2(BOR4V_BOR40V & WRT_OFF);

void main()
{
int value;
TRISA=0x00;
PORTA=0x00;
TRISB-0x00;
PORTB=0xFF;

OSCCON= 0b01100101;
OSCTUNE= 0x0E;
while(1)
{
PORTB=0xFF;
for(value=0;value<10000;value++);
for(value=0;value<10000;value++);
PORTB=0x00;
for(value=0;value<10000;value++);
for(value=0;value<10000;value++);
}
}

 

[FvM]

Configuration bits declaration error will come.

You didn't report an actual error.

 

[paulfjujo]

hello,


you have analog input on reset !

void main()
{
int value;

TRISA=0x00;
PORTA=0x00;
ANSEL=0;

TRISB-0x00;
PORTB=0xFF;
[B]ANSELH=0;  [/B]   // normal I/O instead of analog

OSCCON= 0b01100101;  // so 4MHz 
OSCTUNE= 0x0E;           // why this Fosc adjustment ? did you check it ?  
while(1)
{
PORTB=0xFF;
for(value=0;value<20000;value++);
PORTB=0x00;
for(value=0;value<20000;value++);
}
}

 

[ragav4456]

Error:
C:\Users\Rams\AppData\Local\Temp\s5k4.:45: error: undefined symbol "LVP_OFF"
make[2]: *** [dist/default/production/Agri_timer.X.production.hex] Error 1
C:\Users\Rams\AppData\Local\Temp\s5k4.:45: error: undefined symbol "FCMEN_OFF"
C:\Users\Rams\AppData\Local\Temp\s5k4.:45: error: undefined symbol "IESO_OFF"
make[1]: *** [.build-conf] Error 2
make: *** [.build-impl] Error 2
C:\Users\Rams\AppData\Local\Temp\s5k4.:45: error: undefined symbol "BOREN_OFF"
C:\Users\Rams\AppData\Local\Temp\s5k4.:45: error: undefined symbol "CPD_ON"
C:\Users\Rams\AppData\Local\Temp\s5k4.:45: error: undefined symbol "CP_ON"
C:\Users\Rams\AppData\Local\Temp\s5k4.:45: error: undefined symbol "MCLRE_ON"
C:\Users\Rams\AppData\Local\Temp\s5k4.:45: error: undefined symbol "PWRTE_OFF"
C:\Users\Rams\AppData\Local\Temp\s5k4.:45: error: undefined symbol "WDTE_OFF"
C:\Users\Rams\AppData\Local\Temp\s5k4.:45: error: undefined symbol "FOSC_INTRC_NOCLKOUT"
C:\Users\Rams\AppData\Local\Temp\s5k4.:49: error: undefined symbol "WRT_OFF"
C:\Users\Rams\AppData\Local\Temp\s5k4.:49: error: undefined symbol "BOR4V_BOR40V"
make[2]: Leaving directory `D:/Parthiban/Working/Droid_Hash/Working/Agri_Timer/Agri_timer.X'
make[1]: Leaving directory `D:/Parthiban/Working/Droid_Hash/Working/Agri_Timer/Agri_timer.X'

BUILD FAILED (exit value 2, total time: 9s)

 

[FvM]

A trivial compiler usage problem. Each compiler has specific symbols for fuse bits and include files that must be imported to make it known. Apparently you didn't get it right.

I presume it's well explained in a compiler user manual and demonstrated in example projects. You didn't tell which compiler was used.

 

[ragav4456]

Iam using MPLAB X IDE, Hitech C compiler