LCDOUT -> Count Value

I'm having a hard time trying to do this. this is my configuration and code so far if anyone can help:

hardware: PIC16F84
PORTB.2 has a pullup resistor to VCC
pushbutton switch connected to PORTB.2 to gnd.


I inserted 'high pushbutton' because once i press the button, the output port did not automatically go back to VCC afterwards (right?, wrong?)

CounterA var Byte 'for counter
PushButton var PORTB.2

If PushButton=0 then
CounterA=CounterA+1
pause 10
high pushbutton
Pause 10
While Pushbutton=0:Wend
Lcdout $fe, 1, "Button Presses =" ' Clear LCD screen
Lcdout $FE, $c0, Countera
Pause 2000
endif

By making the pin High, you have made the port an output !!!

You are then shorting the output to ground and may have damaged your Pic.

ahh!!! so remove the pullup resistor then and hope the chip isn't fried? does the rest of the code look ok?

Keep the resistor - a good value is 10k

CounterA var Byte 'for counter
PushButton var PORTB.2

CounterA=0 ' will be an undefined value on startup

Start:

If PushButton=0 then
CounterA=CounterA+1

Lcdout $fe, 1, "Button Presses =" ' Clear LCD screen
Lcdout $FE, $c0, Countera
While Pushbutton=0:Wend
Pause 2000
endif

goto start ' must tell the program where to go otherwise it will crash

hmm, still not working. i think i need to try to setup an interrupt. this way regardless of what the program is doing it'll record the button press. i'll poke around the forums and see what i can learn ;)

Thanks alot for your help! :)