DT_instantINT 16f690 not working... what am I doing wrong?


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    Default Re: DT_instantINT 16f690 not working... what am I doing wrong?

    Thanks Hank...
    I added what you suggested and it is working better... BUT LED0 is still not ON fully when it is on. I looked at it with an O-scope and it is actually a square wave at 2.9 KHz... which makes me think it is constantly re-triggering the interrupt at that 2.9KHz rate (or something??)

    Here is my code as it stands...
    Code:
    #CONFIG
      __CONFIG _INTRC_OSC_NOCLKOUT & _WDT_OFF & _PWRTE_OFF & _MCLRE_OFF & _CP_OFF & _CPD_OFF & _BOD_OFF & _IESO_OFF & _FCMEN_OFF
    #endconfig
    
    
    include "ALLDIGITAL.pbp"
    INCLUDE "DT_INTS-14.bas"        ; Base Interrupt System
    INCLUDE "ReEnterPBP.bas"        ; Include if using PBP interrupts
    
    wsave   VAR BYTE    $70 SYSTEM  ' alternate save location for W 
    
    DEFINE OSC 4
    
    TrisA = 00000000
    TrisB = 00000000
    TrisC = 00000000
    OPTION_REG.7=0        'Turn On weak pull ups
    WPUB.7 = 1
    
    LED0   VAR  PORTC.0   'this LED is controlled by the "INT" pin, 16F690=RA2
    LED1   var  PortC.1   'this LED is controlled by the Main program loop
    IOC_FLAG VAR INTCON.0
    
    IOCB.7=1
     
    ASM
    INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
            INT_Handler    RABC_INT,  _ToggleLED1,   PBP,  yes
        endm
        INT_CREATE               ; Creates the interrupt processor
    ENDASM
    
    IOC_FLAG = 0
    @   INT_ENABLE   RABC_INT     ; enable external (INT) interrupts
    
    Main:
      PAUSE 500
      Toggle led1
    GOTO Main
    
    '---[INT - interrupt handler]---------------------------------------------------
    ToggleLED1:
    IOC_FLAG = 0
    toggle LED0
    
    @ INT_RETURN
    Also... i am using a pulse generator that allows me to generate 1,10,100,1000 Hz and that is what I am using to feed RB7 (the source of the INT)

    I have looked at the pulse signal feeding the INT and it is clean.

    anyone?

    PS. when you post code to the forum it seems to not like "%" and deletes some of the bits after the %. There are %'s in my actual code.
    Last edited by Heckler; - 6th November 2011 at 06:53.
    Dwight
    These PIC's are like intricate puzzles just waiting for one to discover their secrets and MASTER their capabilities.

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