[SOLVED] [moved] facing problems to implement a timer interrupt in P33FJ12GP202

//void Timer1Int() org IVT_ADDR_T1INTERRUPT { // Timer1 interrupt handler
void Interrupt() {
if(T1IF == 1) {
 if (DONE_bit){                          // If ADC is not busy
    SAMP_bit  = 1;                       // Start new sample
  }
  PORTA.b1 ^= 1; // ~ PORTA.b1;                  // You can put oscilloscope on PORTD
                                         //  to measure sampling frequency
  T1IF_bit    = 0;
  }
}

void main() {
  TRISB = 0;
  TRISA.b1=0;


  // Interrupts setup
  IFS0    = 0;                           // Clear interrupt flags
  IFS1    = 0;                           // Clear interrupt flags
 // IFS2    = 0;                           // Clear interrupt flags
  NSTDIS_bit = 1;                        // Nested interrupts DISABLED
  INTCON2    = 0;                        // Other interrupt settings
  T1IE_bit   = 1;                        // Timer1 and
  AD1IE_bit   = 1;                        // ADC interrupts ENABLED
  T1IP0_bit  = 1;                        // Timer1 interrupt priority level = 1
  //ADIP1_bit  = 1;                        // ADC interrupt priority level = 1
 

 //TON_bit    = 1;                        // Start Timer1, internal clock FCY, prescaler 1:1
 TCKPS_1_bit =0;
  TCKPS_0_bit = 0;
  TGATE_bit = 0;
  TSYNC_bit = 0;
  TCS_bit = 0;
  PR1        = 0x03E8;                   // Sampling ~= 80 kHz. The value of 250 is calculated for 80MHz clock.


  


  while (1);                             // Infinite loop,
                                         //   wait for interrupts
}

//Timer1
//Prescaler 1:64; PR1 Preload = 31250; Actual Interrupt Time = 100 ms

//Place/Copy this part in declaration section
void InitTimer1(){
  T1CON         = 0x8010;
  T1IE_bit         = 1;
  T1IF_bit         = 0;
  IPC0                 = IPC0 | 0x1000;
  PR1                 = 62500;
  TON_bit    = 1;
}

void main() {
  TRISB = 0;
  TRISA=0;
  PORTA=0;
   // Interrupts setup
  IFS0    = 0;                           // Clear interrupt flags
  IFS1    = 0;                           // Clear interrupt flags
 // IFS2    = 0;                           // Clear interrupt flags
  NSTDIS_bit = 1;                        // Nested interrupts DISABLED
  INTCON2    = 0;                        // Other interrupt settings
  T1IE_bit   = 1;                        // Timer1 and
  AD1IE_bit   = 1;                        // ADC interrupts ENABLED
  T1IP0_bit  = 1;                        // Timer1 interrupt priority level = 1
  //ADIP1_bit  = 1;                        // ADC interrupt priority level = 1

InitTimer1();

}

void Timer1Interrupt() iv IVT_ADDR_T1INTERRUPT{
  T1IF_bit         = 0;
  PORTA.b1 ^= 1; // ~ PORTA.b1;
  //Enter your code here
}

void Timer1Interrupt() iv IVT_ADDR_T1INTERRUPT {
if(IFS0bits.T1IF == 1) {
  PORTA.b4 ^= 1; // ~ PORTA.b4;                  // You can put oscilloscope on PORTA.b4
                                                //  to measure sampling frequency
  IFS0bits.T1IF = 0;
  }
}

void main() {
  TRISA = 0;
  PORTA = 0;
  TRISB = 0;
  PORTB = 0;


  // Interrupts setup
  IFS0    = 0;                           // Clear interrupt flags
  IFS1    = 0;                           // Clear interrupt flags
 // IFS2    = 0;                           // Clear interrupt flags
  NSTDIS_bit = 1;                        // Nested interrupts DISABLED
  INTCON2    = 0;                        // Other interrupt settings
  T1IE_bit   = 1;                        // Timer1 and
  AD1IE_bit   = 1;                        // ADC interrupts ENABLED
  T1IP0_bit  = 1;                        // Timer1 interrupt priority level = 1
  //ADIP1_bit  = 1;                        // ADC interrupt priority level = 1


  
    T1CONbits.TON = 0; // Disable Timer
    T1CONbits.TCS = 0; // Select internal instruction cycle clock
    T1CONbits.TGATE = 0; // Disable Gated Timer mode
    T1CONbits.TCKPS = 0b00; // Select 1:1 Prescaler
    TMR1 = 0x0000; // Clear timer register
    PR1 = 5000; // Load the period value  //
    IPC0bits.T1IP = 0x01; // Set Timer1 Interrupt Priority Level
    IFS0bits.T1IF = 0; // Clear Timer1 Interrupt Flag
    IEC0bits.T1IE = 1; // Enable Timer1 interrupt
    T1CONbits.TON = 1; // Start Timer





  while (1) {
  PORTB = TMR1;
  }
}

if(T1IF_bit) {

}