I'm trying to read a Keyboard Matrix that is connected so that I scan 4
input lines and pulse 4 output lines and when I pulse and check I find the
button that is pressed.  I wrote an E-Mail about this before and I thank
everyone for that answer.  Now my problem is when I press a button (Buttons
has a 270Ohm Pull up resistor) the BIT goes high, then when I let go of the
button the BIT stays high.  Then after about a second or 2 it fades off.
This wasn't a good result.

This Buttons do not have an Normal Open Pull down resistor so I guess the
just float when disconnected.  I tried to activate the internal pull ups.
This didn't help.  This just made all the bits high all the time.  I've been
Thinking of Toggling the TRISB state after a read to reset the Pins states,
but there must be an easier way.

Darren King