Hi,

----- Original Message -----
From: Christian Dorner <doc@AUSTROSOL.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Tuesday, December 18, 2001 5:48 AM
Subject: Re: [PIC] Ghost in my PIC


| Hi!
|
|
| > I have a very strange thing happending with my PIC.
| > I mounted it in a proto-board and recorded a simple programa.
| > At first it doesn't work.
| > Waiting aprox. 1 minute, it beguins to work (sometimes).
| > Sometimes, when I touch GND, it works again. Sometimes, not.
| > It works when it wants...
|
| I can remember at the beginning of my PIC expirience i had a similar
| problem. In my case i could solve it with a better startup routine like
| this:
|
|  org 0x0000
|
|  clrf PCLATH
|  clrf INTCON
|  clrf STATUS
|  goto start   ; Jump to Program entry point
|
| It seems that the PIC sometimes starts up with unexepted values in some
| registers. If your program don't use interrupts then add a RETFIE at
offset
| 0x0004 to let the program countinue even when a unexepted interrupt
occures.
|
| Christian


This is nosense. The SFR's are initialized to their default values on reset.


Best Regards,

S.-

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