DTMF Decoding?

[muddy0409]

Has anyone heard of DTMF decoding directly with a PIC, without need for a dedicated DTMF chip??

[skimask]

Has anyone heard of DTMF decoding directly with a PIC, without need for a dedicated DTMF chip??

There's a Microchip App Note about just that subject, app note #049 I think, but don't quote me on that.
But...I don't think I'd trust that code too much. I haven't tried it myself, but I've seen a number of message on the microchip site that says the code basically sucks.
On the other hand, there's always this:
http://web.ndak.net/jdgrotte/picalyzer/picalyzer.htm