HI!
MY CODE IS GIVEN BELOW.
HERE IS THE PROBLEM WITH #INCLUDE <P18F452.INC>
WHAT IS THIS PROBLEM.???

////////////////////

Processor 18f458
#include <18f458.INC>    
org 00
BCF     TRISB,5        
    MOVLW    0x08            
    MOVWF    T0CON            
HERE    MOVLW    0xFF            
    MOVWF    TMR0H            
    MOVLW    0xF2            
    MOVWF    TMR0L            
    BCF    INTCON, TMR0IF    
    BTG    PORTB,5        
    BSF     T0CON, TMR0ON    
AGAIN    BTFSS    INTCON, TMR0IF    
    BRA    AGAIN            
    BCF    T0CON, TMR0ON     
    BRA    HERE            
////////////////////////////////////

I ALSO ATTACH THE IMAGE OF ERROR PLEASE HELP ME.
ACTUALLY AM NEW WITH MPLAB.

 

What compiler are you using? In the build window, it looks like you're trying to use C18, but you wrote the code in ASM. Also, try including the .h instead of '.inc'

Or, another thought, try ".inc" rather than ".INC". I think it's case-sensitive.

 

Well metlab. It looks like the problem is that the inlude file 18f459.inc can not be found. Have you done a serch on your HD trying to locate it? If MPLAB is correct installed and you have made a project. MPLAB should have able to locate the correct inc file

 

What compiler are you using? In the build window, it looks like you're trying to use C18, but you wrote the code in ASM. Also, try including the .h instead of '.inc'

Or, another thought, try ".inc" rather than ".INC". I think it's case-sensitive.

Good catch I think metlab have selected the wrong toolsuite then creating the project. The correct toolsuite for an assembler project is "Microchip MPASM toolsuite"

 

Thank you so much.
you guide in a right a way.
i have done it..

 

Thank you so much.
you guide in a right a way.
i have done it..

I am very glad to hear of your success!

 

Thank you sir.
its my pleasure,nice

 

T0CON=0x08;
TMR0H=0x35;
TMR0L=0x00;
i want to discuss them.please help me.

 

and what is the difference between timer0,timer1,timer2...

 

and what is the difference between timer0,timer1,timer2...

Have you read the datasheet? You can find relevant information here. In this case your question is to wide to answer. Be more specific

 

>how to set the value of TMR0H and TMR0L
>prescale of timer....

 

>how to set the value of TMR0H and TMR0L
>prescale of timer....

It's all in the datasheet. It basically gives you the directions necessary to do it