ICSP not recognizing..

[skimask]

That is a bit wierd, because what I posted should've had a freq of about 36khz (73.5khz int rate, 20mhz/4=5Mhz instruction rate / 68 = 73.5khz toggling the pin).

If anything, the freq should've dropped BELOW 36khz due to not reloading the timer with 'fixed' values and not compensating for the extra cycles in the interrupt loop.
I get the feeling that the 'scope isn't being read right (i.e. only measuring half of the square wave, not the whole thing)

And yes, I agree completely about DT_INT's vs. ON_Interrupt.

[mister_e]

completely untested, should work anyway...

        define OSC 20 
        
        include ".\include_routines\DT_INTS-14.bas"
        
ASM
INT_LIST  macro    ;  IntSource,   Label,  Type, ResetFlag?
        INT_Handler    TMR1_INT,  _SINUS,   ASM,  yes
    endm
    INT_CREATE

endasm  

        
        '------- Configurações iniciais -------------------- 
        TRISA  = %00000000 ' PORTA
        TRISB  = %00000000 ' PORTB 
        TRISC  = %00000000 ' PORTC
        TRISD  = %00000000 ' PORTD 
        TRISE  = %00000000 ' PORTE 
        
        OPTION_REG = %00000000
        ADCON1 = %10001111  ' all digital
        T1CON = %00000000   ' TMR1 1:1 prescaler
        PIE1 = %00000001    ' Henable  TMR1 INT

@TIMER1=TMR1L
        TIMER1      var word EXT

        INT         VAR     PIR1.0  ' OVERFLOW flag
        START       VAR     T1CON.0 ' START TMR1
        
        LOAD        CON     65404 '  INT. 36KHz
        
        TIMER1=LOAD
        START = 1 
@       INT_ENABLE   TMR1_INT     
        PORTB.0 = 1
MAIN:      
        GOTO MAIN    

SINUS:  
        ASM
                MOVE?CT  0, T1CON, TMR1ON ; Stop Timer1
                MOVLW    LOW(_LOAD)       ; Reload timer1
                ADDWF    TMR1L,F          ;   but add current Timer
                BTFSC    STATUS,C         ;       value
                INCF     TMR1H,F          ;
                MOVLW    HIGH(_LOAD)      ;
                ADDWF    TMR1H,F          ;
                MOVE?CT  1, T1CON, TMR1ON ; Start Timer1                      
        ENDASM
        toggle PORTB.0
@       INT_RETURN