PIC never reacts to Button

[Acetronics2]

Hi,

The problem could be ... at first, once you release you button ... value comes back to the default.

you ,may be, have to memorize the last button press action ...


Now ... dependinding on your PIC ( BTW ... Which one do you use ??? ) PortB.6 and 7 can be shared with ADC, ( ADCON1 <> 7 !!! ) , clock ... or sthg else.

Osc settings are also necessary to understand how your circuit is REALLY working ...

Your scheme could be useful, in the end, to see if any pulldown on your inputs ...

Alain

[AlfonsoB]

Hi again
Thanks a lot for the reply and to all,

I use the pic16f876, PortB outputs an LCD pins 0 to 5, pulse out are on 6 and 7.
PORTA.0 input where a button with a 10 K pull up resistor connected.
No master clear connection.

But even with or without pull ups or master clears nothing changes. I think I have to learn how to activate or disable internal pullups too.

I'll consider your remarks and try them out and come back later.

Regards

Alfonso