Hi,
If your write the debounce code to work out in which
direction the key is going, i.e. key_down or key_up,
Then when a key_down is received start a timer and
if after a preset time a key_up has not cancelled it then
do a key_held operation.

I have some C code for a non-PIC micro if you are
interested.

Regards
Peter Mcalpine
petermca@ozemail.com.au - www.ozemail.com.au/~petermca
mcalpine@gme.net.au - www.gme.net.au
www.wrx.org.au

----- Original Message -----
From: Bob Wake & RenŽe McMeeken <rwake@PATHCOM.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Thursday, 8 July 1999 3:57
Subject: Single switch, two functions


> Any idea where to start writing code to enable a single switch to
> perform two functions? I've seen switches that do one thing if pressed
> briefly and another if held down for 1 sec. or more.
>  Can this be achieved only with a timer interrupt, or is there a better
> way?