----- Original Message -----
From: Quentin <qsc@ICON.CO.ZA>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Friday, April 27, 2001 4:01 AM
Subject: Re: [PIC]: Help! Gotta a bug!

Thanks for responding Quentin!


> What do you mean locks up the program? Does the PIC stop working? Or
> does it stay on one tone?

It stays on tone #2.

> First, I don't see that you __CONFIG your PIC, so you are not switching
> your Watchdog timer off and set your oscilator type (unless you do it in
> another way).

I set these in the programming software (PICALL):
XT, WDT off, PU on, CP off


> What seems strange to me is the way you do your delay routines:
>
>         movlw   0xf6            ;
>         movwf   dlay1           ;
>         movlw   0x03            ;
>         movwf   dlay2           ;
>         call    DLAY            ;
>
> DLAY    decfsz  dlay1, f        ;
>         goto DLAY               ;
>         decfsz  dlay2, f        ;
>         goto DLAY               ;
>         return
>
> The first time you decfsz dlay1 you decrease from 0x0f6 to 0x0. Then you
> decfsz dlay2 once and goto back to decfsz dlay1, which will now decrease
> from 0x0 to 0x0ff and then loop back to decrease dlay1 until 0x0 and
> then decrease dlay2 again once.
> Is this the way you wanted it to work?
> Doing it this way there is not much difference in delay between tone 2
> and 3 (few hunderd microsecs or so).
> You do the same with ctr3 and ctr4. Tone 3 also has no value for ctr4.

I copied this timer routine out of a beginners book.  If you have a better
suggestion, please let me know.

As I am new to programming any other suggestions would be greatly
appreciated!

Thanks.
Mike

> Quentin
>
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>
>

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads