You need to use a RJ45 that supports POE. I.E. it brings out the POE pins.
something like ARJM11D7-114-AB-EW2
For the POE power supply I have use the AG9903-MTB.

He brings up a good idea. I dont know if it could be implemented in menuconfig. It would be a nice feature to enable/disable those bootstrap pins.

As far as I know, printf will not work in Arduino frameworks. Rather it should be Serial.print()

FYI, printf works just fine in Arduino.

I got it working. Thank you guys for the help!

Seems pretty trivial to me: the functions take int16_t types

FWIW, in the example this function " dsps_tone_gen_f32(x1, N, 1.0, 0.16, 0); "
fills x1 with float values from -1.0 to 1.0. Why do you say it takes int16_t types ?

I apologize if that is how my statement came off. It's intention was just to explain I am under the gun on something I know very little about, and could use some help in a big way is all. You'r expiation was very helpful. Embarrassing obvious now that it was pointed out. If I take the fft example as...

I have thank you, but its not clear to me what is the min/max values my data needs to be to pass to the functions.

FWIW, The company decided way to late to attend a show in Jan. They decided to make a new product in 2 months. I have 1/2 of the project and the DSP guy had the other 1/2. I have been already working 16-18 hour days for weeks now just on my 1/2. So to now have the other 1/2 given to me with the curr...

If you know so much about it wouldn't it have been better to shed some light than to make a comment like that ?
That's why its called learning.

Thanks, that is where I started. But it's clear as mud to me as for how I inject my data.