I had a look at AN4255: FFT-Based Algorithm for Metering Applications available here and would be interested in evaluating this metering library but unfortunately I could not find it anywhere.
There is no associated AN4255SW zip file as for many other application notes and the only resource I could find was the Filter-based variant of the library for another application note (AN4265) --> AN4265SW: http://www.freescale.com/webapp/Download?colCode=AN4265SW
I tried to change the code in the URL to point to AN4255SW but this resource does not exist.
Could someone point me to an archive containing the required sources/library/headers for the meterlibfft.a referenced in Chapter 5 Metering library of the application note ?
Thanks for any hint,