PIC - Goertzel - Tone Decoding - etc
PIC - Goertzel - Tone Decoding - etc
(OP)
Hi all!
I'm wondering if a Goertzel Algoritm can be implemented in a PIC microcontroler with ADC convertion...
What I would expect in terms of detection speed?
Can the Goertzel A. able to give us the streng of signal detected?
Any other ideias/opinions?
Thanks in advance.
bye,
KS
I'm wondering if a Goertzel Algoritm can be implemented in a PIC microcontroler with ADC convertion...
What I would expect in terms of detection speed?
Can the Goertzel A. able to give us the streng of signal detected?
Any other ideias/opinions?
Thanks in advance.
bye,
KS





RE: PIC - Goertzel - Tone Decoding - etc
Here is a modified version of the algorithm.
http://www.geocities.com/constantinescuradu/content/dtmf.htm
Here is the c code. Needs some mods for running on a pic.
ftp://ftp.embedded.com/pub/2002/09banks/
May want to try the walsh transform.
http://www.embedded.com/code/master.htm
Have not tried any of these so I don't know what kind of
preformence you'll get, but it should be enough to get started.
RE: PIC - Goertzel - Tone Decoding - etc
RE: PIC - Goertzel - Tone Decoding - etc
Were my comments to your thread on the MicroChip forum not enough to get you up and running?
Your highest frequency detectable is dependant upon the sampling frequency... if your chip is stuck at 20MHz (which locks in your max sampling rate), then there's not much else you can do.
Dan
Owner
http://www.Hi-TecDesigns.com
RE: PIC - Goertzel - Tone Decoding - etc