Code check -- button not working

[Darrel Taylor]

What's Up DOC?

The SD button is on portb.7, but at the very top TRISB is set to all outputs.

The button command never sees the pin.

HTH,
  Darrel

[RRacer]

Isn't the Button command supposed to take care of TRIS settings?

The manual says "Pin is automatically made an input."


http://www.melabs.com/resources/pbpm...5_4-5_6.htm#56

[docwisdom]

Ill give it a shot. It sounds logical. It may be overriding the button commands ability to make it an input.

[Darrel Taylor]

Yes, someone keeping me in check. Good.

You're right RRacer, it does say that.

And now I'm back to gee, I don't know. Unless ...

Since there isn't a LOADER_USED define, can I assume you are using ICSP?   And, is the programmer always connected?   Is the programmer conflicting with the RB7 input? Just another thought.
<br>
Darrel

P.S. What chip are you using? 16F737? The ADCON1 seems odd. That won't affect PORTB.7, I'm just trying to figure out what chip it is.

[docwisdom]

Yes, I am using ICSP. I only have a pin header connected, I disconnect the programmer after each burn.
Like I said, I tried the same button on a pin on the porta side and still the same issue. The button registers voltage when pressed, so its not a hardware fault.

check out the photos of the LED up and in action! Damn, Lamina makes some really bright stuff.

http://share.shutterfly.com/action/w...=2CcN3DhozYuOg

[docwisdom]

I am back, trying to get this problem solved again. Anyone have any new ideas on why this single button wont work?

[sougata]

Hi,

I would like to see the schematic and know which PIC you are using.

Regards

Sougata