kopia lustrzana https://github.com/UU5JPP/Wolf-LITE
52 wiersze
2.4 KiB
C
52 wiersze
2.4 KiB
C
#ifndef FFT_h
|
|
#define FFT_h
|
|
|
|
#include "stm32f4xx_hal.h"
|
|
#include <stdbool.h>
|
|
#include <math.h>
|
|
#include "functions.h"
|
|
#include "wm8731.h"
|
|
#include "screen_layout.h"
|
|
|
|
#define FFT_SIZE 512 // specify the size of the calculated FFT
|
|
#define FFT_USEFUL_SIZE 512 // size after FFT cropping
|
|
#define FFT_DOUBLE_SIZE_BUFFER (FFT_SIZE * 2) // Buffer size for FFT calculation
|
|
#define FFT_MIN 4.0f // MIN threshold of FFT signal
|
|
#define FFT_TARGET 6.0f // average threshold of the FFT signal
|
|
#define FFT_COMPRESS_INTERVAL 0.9f // compress interval of the FFT signal
|
|
#define FFT_MAX 6.0f // MAX FFT signal threshold
|
|
#define FFT_STEP_COEFF 10.0f // step coefficient for auto-calibration of the FFT signal (more - slower)
|
|
#define FFT_HZ_IN_PIXEL (float32_t)((float32_t)TRX_SAMPLERATE / (float32_t)LAY_FFT_PRINT_SIZE) // hertz per pixel
|
|
#define FFT_BW_BRIGHTNESS 10 // pixel brightness on bw bar
|
|
#define FFT_SCALE_LINES_BRIGHTNESS 0.4f // pixel brightness on scale lines
|
|
#define FFT_MAX_GRID_NUMBER 13
|
|
#define ZOOMFFT_DECIM_STAGES 5
|
|
#define FFT_DMA_MAX_BLOCK 65000
|
|
#define FFT_TX_MIN_LEVEL 3.0f //fft tx minimum scale level
|
|
#define FFT_MAX_TOP_SCALE 30 //maximum scale parameter
|
|
|
|
// Public variables
|
|
extern uint32_t FFT_buff_index;
|
|
extern bool FFT_buff_current;
|
|
extern bool FFT_need_fft;
|
|
extern bool FFT_new_buffer_ready;
|
|
extern float32_t FFTInput_I_A[FFT_SIZE];
|
|
extern float32_t FFTInput_Q_A[FFT_SIZE];
|
|
extern float32_t FFTInput_I_B[FFT_SIZE];
|
|
extern float32_t FFTInput_Q_B[FFT_SIZE];
|
|
extern uint16_t FFT_FPS;
|
|
extern uint16_t FFT_FPS_Last;
|
|
|
|
// Public methods
|
|
extern void FFT_Init(void); // FFT initialization
|
|
extern void FFT_PreInit(void); // FFT precalculation
|
|
extern void FFT_bufferPrepare(void); // FFT Buffer process
|
|
extern void FFT_Reset(void); // reset FFT
|
|
extern void FFT_doFFT(void); // FFT calculation
|
|
extern bool FFT_printFFT(void); // FFT output
|
|
extern void FFT_afterPrintFFT(void); // FFT output after callback
|
|
extern void FFT_printWaterfallDMA(void); // waterfall output
|
|
extern uint32_t getFreqOnFFTPosition(uint16_t position); //get frequency from pixel X position
|
|
|
|
#endif
|