modulator.h File Reference

#include <stdint.h>
#include "fsl_soundcard.h"
#include "fsl_sai_driver.h"
#include "fsl_sai_features.h"
#include "arm_math.h"

Go to the source code of this file.

Data Structures
struct	wave_header_t
struct	wave_file_t

Macros
#define	WAVE_FILE_HEADER_SIZE
#define	WAV_PARTIAL_BUFFER_SIZE
#define	WAV_PI

Enumerations
enum	wav_mods {   kNoModulation,   kSquareWave,   kSawWave,   kTriangleWave }

Functions
void	modulator_init (void)
snd_status_t	get_wav_data (wave_file_t *waveFile)
snd_status_t	play_wav (uint32_t *pcmBuffer, uint8_t divider)
static void	send_wav (uint8_t *dataBuffer, uint32_t length, sai_data_format_t *dataFormat)
snd_status_t	play_mod_wav (uint16_t *pcmBuffer, uint16_t *modPointer, float32_t *fftData, float32_t *fftResult, uint8_t divider, uint8_t modulation, uint32_t srcSizeBytes, uint32_t sampleSize)
float32_t	get_wav_Hz (uint16_t *pcmBuffer, float32_t *fftData, float32_t *fftResult, uint32_t sampleSize)
uint32_t	mod_wav_data (uint16_t *pcmBuffer, uint16_t *modBuffer, float32_t *fftData, float32_t *fftResult, uint16_t startIndex, uint32_t sampleSize, uint8_t modType)
void	play_wav_arpeggio (uint32_t *arpeggioBuffer, uint32_t introLength, uint8_t divider)

---

Data Structure Documentation

struct wave_header_t

Data Fields
uint16_t	bit_samp
uint16_t	bitSamp
uint16_t	block_align
uint16_t	blockAlign
uint32_t	byte_rate
uint32_t	byteRate
uint16_t	channels
uint8_t	data_flag[4]
uint8_t	dataFlag[4]
uint8_t	fmt[4]
uint32_t	fmt_len
uint32_t	fmtLen
uint32_t	length
uint8_t	riff[4]
uint32_t	samp_freq
uint32_t	sampFreq
uint32_t	size
uint16_t	tag
uint8_t	wave_flag[4]
uint8_t	waveFlag[4]

struct wave_file_t

Data Fields
uint32_t *	data
wave_header_t	header
uint32_t *	pData

Macro Definition Documentation

#define WAV_PARTIAL_BUFFER_SIZE

#define WAV_PI

#define WAVE_FILE_HEADER_SIZE

Enumeration Type Documentation

enum wav_mods

Enumerator
kNoModulation
kSquareWave
kSawWave
kTriangleWave

Function Documentation

snd_status_t get_wav_data

(

wave_file_t *

waveFile

)

float32_t get_wav_Hz	(	uint16_t *	pcmBuffer,
		float32_t *	fftData,
		float32_t *	fftResult,
		uint32_t	sampleSize
	)

uint32_t mod_wav_data	(	uint16_t *	pcmBuffer,
		uint16_t *	modBuffer,
		float32_t *	fftData,
		float32_t *	fftResult,
		uint16_t	startIndex,
		uint32_t	sampleSize,
		uint8_t	modType
	)

void modulator_init

(

void

)

snd_status_t play_mod_wav	(	uint16_t *	pcmBuffer,
		uint16_t *	modPointer,
		float32_t *	fftData,
		float32_t *	fftResult,
		uint8_t	divider,
		uint8_t	modulation,
		uint32_t	srcSizeBytes,
		uint32_t	sampleSize
	)

snd_status_t play_wav	(	uint32_t *	pcmBuffer,
		uint8_t	divider
	)

void play_wav_arpeggio	(	uint32_t *	arpeggioBuffer,
		uint32_t	introLength,
		uint8_t	divider
	)

static void send_wav ( uint8_t *  dataBuffer, uint32_t  length, sai_data_format_t *  dataFormat  )

static