TMR2 not working..

[Darrel Taylor]

What pins are the LCD hooked up to?

Without the DEFINES, the LCD defaults to PORTA 0-3 for the data, but those pins are configured for analog.

You had the same settings before and said it was working so I assumed there were defines that you didn't show. But now it looks like there aren't any.
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[sirvo]

The lcd defines are the same. It's hooked up on PORTB. I did not change defines.
I've added the two .bas instant interrupt files, added the asm code and changed all the interrupt statement to the instant interrupt. I have no ideia where the problem is located to.. i'm still trying to do so..

I still have some doubts about instant interrupts and timer using, like reloading and also configuring Option_reg or intcon...

did not you really read anything wrong in the code posted?

Thanks for the attention Darrel.

[Darrel Taylor]

The lcd defines are the same. It's hooked up on PORTB. I did not change defines.

That's the part I don't get. There are no DEFINEs for the LCD. So it won't work on PORTB. Unless you just didn't include them in the post.

did not you really read anything wrong in the code posted?

No I don't.
I've run the program here, with a few changes. Using a 16F877.

I did change the $A0 in the LCDOUT statement.
Changed it to $80. All works fine.
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[sirvo]

That's the part I don't get. There are no DEFINEs for the LCD. So it won't work on PORTB. Unless you just didn't include them in the post.

I'm sorry. I did not post them here, but they are correct.
I'll try again later...I'm sleepy now..

Thank you very much..

[sirvo]

As I have said, the LCD gets a cleared screen. IN order to test the ASM routine of instant interrupt, I have added 2 LCDOUT commands. The first before the ASM routine and the Second after the ASM ROUTINE.

' LCD defines on portB
' All registers set
' just like the code posted before

Pause 1000

LCDOUT $FE, $80, "TEST 1"

ASM
;T0IF = TMR0IF
;T0IE = TMR0IE
INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
        INT_Handler   TMR2_INT,  _tick,   PBP,  yes
    endm
    INT_CREATE               ; Creates the interrupt processor
ENDASM
@    INT_ENABLE  TMR2_INT     ; Enable Timer 1 Interrupts 

LCDOUT $FE, $80, "TEST 2"

'and the rest of the code goes i here..

Well.. Now the LCD displays only "TEST 1".. it seems that the pointer is stuck in the ASM lines... Anything to say?

Thanks!

[sirvo]

Darrel.... are you there?

I 'discovered' that if I set PR2 to any number it DO NOT interrupt...
If I let PR2 'unset' it interrupts normal...

In this case I am going to use it in this way, letting TMR2 count until 0FFh. Anyway, do you know what is hapening?

Thanks...

[Darrel Taylor]

Working on it.

Building a 16F88 breadboard now. (Last couple hours)

I'll get back to you.
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