the code is as following already, forgot to add sorry;

sbit BTN1 at RB1_bit;
sbit PROT at RB2_bit;
sbit  TEST at RB3_bit;

void main() {

TRISB =3D  00001110;
PORTB =3D 00001010;
PROT =3D 0;

while(1){
if( BTN1 =3D=3D  0){
PROT =3D ~PROT }  }

On Mon, Oct 24, 2011 at 7:17 PM, Bob Ammerman <picram@roadrunner.com> wrote=
:
> As written your code simply executes once and then does who knows what...
>
> You probably want
>
> for (;;)
> {
> =A0 =A0if ( BTN1 =3D=3D 0 )
> =A0 =A0{
> =A0 =A0 =A0 =A0PORT =3D ~PORT
> =A0 =A0}
> }
>
> ----- Original Message -----
> From: "Yigit Turgut" <y.turgut@gmail.com>
> To: "Microcontroller discussion list - Public." <piclist@mit.edu>
> Sent: Monday, October 24, 2011 12:01 PM
> Subject: [PIC] Pushbutton Trigger
>
>
>> Hi all,
>>
>> /*
>> sbit BTN1 at RB1_bit;
>> sbit PROT at RB2_bit;
>> sbit =A0TEST at RB3_bit;
>>
>> void main() {
>>
>> TRISB =3D =A000001110;
>> PORTB =3D 00001010;
>> PROT =3D 0;
>>
>> if( BTN1 =3D=3D =A00){
>> PROT =3D ~PROT } */
>>
>> BTN1 is active high and when pressed it shorts the pin to ground. But
>> when I run the test code above, PROT converts into its complement even
>> if the button is not pressed. Also when I type if(BTN1 !=3D 1) instead
>> of if(BTN1 =3D=3D 0), all logic levels are drawn to low, not responsive.
>> It's a very annoying thing, has anyone encountered such a behavior ?
>> --
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> http://mailman.mit.edu/mailman/listinfo/piclist
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