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TIMER FOR PIC 16f877a using mikroC

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Danishmehmood

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Hi all,

i am new in PIC for 16f877a, can anyone have any example on how to have a timer triggering in this PIC.

I want to make a system which will check value of Current, and then attach loads according to requirement.

There are three loads, when current increases from 10A, one of the load turns off.

I need a program which will check value of Current after every 5 or 10 Seconds using timer Interrupt. I cannot use Delay command because it will stop micro-controller from all other works. :sad:

Kindly tell me, some program so I can use it to run my project.

(In the CCT, Instead of placing MCU i wrote 'Logic to MCU' etc. EMR01.... is relay).







Untitled.png
 

Danishmehmood said:
Hi all,

i am new in PIC for 16f877a, can anyone have any example on how to have a timer triggering in this PIC.

I want to make a system which will check value of Current, and then attach loads according to requirement.

There are three loads, when current increases from 10A, one of the load turns off.

I need a program which will check value of Current after every 5 or 10 Seconds using timer Interrupt. I cannot use Delay command because it will stop micro-controller from all other works. :sad:

Kindly tell me, some program so I can use it to run my project.

(In the CCT, Instead of placing MCU i wrote 'Logic to MCU' etc. EMR01.... is relay).







View attachment 95051
Click to expand...


I have C code for timer but it is for Hi-Tech compiler so is it possible to use Hi-tech instead of Micro C.
 

Code C - [expand]
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unsigned int time = 0;
 
//Timer1
//Prescaler 1:8; TMR1 Preload = 3035; Actual Interrupt Time : 500 ms
 
//Place/Copy this part in declaration section
void InitTimer1(){
  T1CON  = 0x39;
  TMR1IF_bit     = 0;
  TMR1H  = 0x0B;
  TMR1L  = 0xDB;
  TMR1IE_bit     = 1;
  INTCON     = 0xC0;
}
 
void Interrupt(){
  if (TMR1IF_bit){ 
    TMR1IF_bit = 0;
    TMR1H    = 0x0B;
    TMR1L    = 0xDB;
    //Enter your code here
    time++;
    if(time == 10){   //10 == 5 sec, 20 == 10 sec
 
        //do something
    }
 
  }
}
 
Thanks jayanth.devarayanadurga, i will learn it, n try to use it in mikroc. thanks alot.
 

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