Instant Interrupts - Revisited

[skimask]

I test for 16f877a and it's work.
But for the 18f88 i got the message : Symbol not previously defined (T0IF)
and not compile.Why;

That would be a good trick....compiling for an 18F88. I can't seem to find it on the Microchip website.

Try TMR0IF (a zero after TMR). Or you don't have an up-to-date version of PBP.

Previous Release: 2.45

* Adds support for PIC12F508, 509, 683, PIC16F505, 684, 688, 716, 737, 747, 767, 777, 87, 88, PIC18F2331, 2431, 2515, 2525, 2585, 2610, 2620, 2680, 4331, 4431, 4515, 4525, 4585, 4610, 4620, 4680, 6410, 6490, 8410 and 8490.

[savnik]

Previous Release: 2.45

* Adds support for PIC12F508, 509, 683, PIC16F505, 684, 688, 716, 737, 747, 767, 777, 87, 88, PIC18F2331, 2431, 2515, 2525, 2585, 2610, 2620, 2680, 4331, 4431, 4515, 4525, 4585, 4610, 4620, 4680, 6410, 6490, 8410 and 8490.

I have 2.46

[skimask]

I have 2.46

Well, if TMR0IF (or T0IF for that matter) doesn't work, then just change the code to access the interrupt flag bit directly from the applicable register.

[Darrel Taylor]

Microchip can't make up thier mind on what they want to call things. In most 16F's it's called T0IF, and in the 18F's it's TMR0IF, but for some reason, in a 16F88 it's also called TMR0IF. It's the same with the T0IE/TMR0IE.

Fortunately, we aren't stuck with whatever they decide to call things.

Just add the 2 highlighted lines, and you should be fine. (no spaces before them)

ASM
T0IF = TMR0IF
T0IE = TMR0IE
INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
        INT_Handler    INT_INT,  _ToggleLED1,   PBP,  yes
        INT_Handler   TMR0_INT,  _ToggleLED2,   PBP,  yes
        INT_Handler   TMR1_INT,  _ClockCount,   PBP,  yes
    endm
    INT_CREATE               ; Creates the interrupt processor

    INT_ENABLE   INT_INT     ; enable external (INT) interrupts
    INT_ENABLE  TMR0_INT     ; enable Timer 0 interrupts
    INT_ENABLE  TMR1_INT     ; Enable Timer 1 Interrupts  
ENDASM

[savnik]

Thank you.
Now it's work.