- Display on PB8/PB9 for SCL/SDA
- Analog is on PA7
First, use FFT, then look in the middle for the highest bin @. This is the # of pixels from the left side of the screen you are.
Then edit ttest.c,
g_goertzel_omega_per_sample = (47.0/256) * 3.1415926535*2.0*65536;
where 47.0 in this case is the bin # from the FFT.
Change this, make test
Then copy the values: const int32_t g_goertzel_omega_per_sample = 75599; const int32_t g_goertzel_coefficient = 870257651; const int32_t g_goertzel_coefficient_s = 1963246708;
into the top of adcgoertzel.c
TODO: TODO: Test HTML values.
TODO: TODO: g_goertzel_omega_per_sample lokos WRONG.
Extra notes: .87996033 = 880 AM, why?