Добавить общие графики, декодер KONOR и порт STM32 bxCAN

c/set-protocol/include/set_spectrum.h

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+/** Shared host-side FFT for Android/JNI and desktop/ctypes; no GUI dependencies. */
+#ifndef SET_SPECTRUM_H
+#define SET_SPECTRUM_H
+#include "pcan_abi.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SET_SPECTRUM_MAX 16384U
+enum { SET_WINDOW_RECT, SET_WINDOW_HANN, SET_WINDOW_HAMMING, SET_WINDOW_BLACKMAN, SET_WINDOW_FLATTOP };
+enum { SET_FILTER_NONE, SET_FILTER_LOW_PASS, SET_FILTER_HIGH_PASS, SET_FILTER_BAND_PASS, SET_FILTER_NOTCH };
+enum { SET_SPECTRUM_OK, SET_SPECTRUM_SHORT, SET_SPECTRUM_INVALID, SET_SPECTRUM_TIMING,
+       SET_SPECTRUM_CUTOFF, SET_SPECTRUM_MEMORY };
+
+/** Analyze the last power-of-two block (16 <= N <= max_size).
+ * times are seconds, strictly increasing; values must be finite. Fs is measured
+ * from timestamps, never taken from the requested acquisition rate. Interval
+ * deviations >50% of the mean are rejected; smaller jitter is linearly resampled.
+ * Filter: second-order Butterworth LP/HP, their cascade for band pass, notch Q=30.
+ * low_hz: HP/band lower cutoff or notch center; high_hz: LP/band upper cutoff.
+ * Each block starts the causal filters at steady state for its first sample.
+ * Processing order: resample, optional mean removal, filter, periodic window, FFT.
+ * Output: one-sided PEAK amplitude, normalized by window sum, DC/Nyquist not doubled.
+ * Caller supplies max_size/2+1 amplitudes; meta = {N, Fs, max relative jitter}.
+ * Inputs are immutable. Scratch memory is bounded by 2*N doubles, allocated here.
+ */
+PCAN_ABI_API int set_spectrum_analyze(const double *times, const double *values, size_t count,
+    size_t max_size, int window, int filter, double low_hz, double high_hz, int remove_mean,
+    double *amplitudes, size_t capacity, double *meta);
+
+#ifdef __cplusplus
+}
+#endif
+#endif