I start my code with this (got it of the net somewhere).

        movlw b'00000000'       ; all port pins =3D low
        movwf PORTA
        movlw b'00000000'
        movwf PORTB
        movlw b'00000000'
        movwf PORTC
        movlw b'00000000'
        movwf PORTD
        movlw b'00000000'
        movwf PORTE

        bsf STATUS,RP0  ; set RAM Page 1 for TRIS registers

        movlw b'00000000'       ; all IO pins =3D outputs
        movwf TRISA
        movlw b'00000000'
        movwf TRISB
        movlw b'00000000'
        movwf TRISC
        movlw b'00000000'
        movwf TRISD
        movlw b'00000000'
        movwf TRISE

        movlw b'00000110'       ; all analog pins =3D digital
        movwf ADCON1

        bcf STATUS,RP0  ; back to RAM page 0

/Fredrik

----- Original Message -----=20
From: "Tony Nixon" <Tony.Nixon@ENG.MONASH.EDU.AU>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Tuesday, August 06, 2002 1:58 AM
Subject: Re: [PIC][EE]: Unstable circuit


> Fredrik Axtelius wrote:
> >
> > Hi!!
> >
> > I have a PIC16F877 circuit and im having big problems to get it =
stable.
>=20
> Try setting all unused IO pins as outputs.
>=20
> --
> Best regards
>=20
> Tony
>=20
> mICros
> http://www.bubblesoftonline.com
> mailto:sales@bubblesoftonline.com
>=20
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>=20
>=20
>

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