arm_fir_example_f32.c File Reference

#include <asf.h>
#include "arm_math.h"
#include "math_helper.h"

Macros
#define	BLOCK_SIZE   32
#define	NUM_TAPS   29
#define	SNR_THRESHOLD_F32   140.0f
#define	TEST_LENGTH_SAMPLES   320

Functions
int32_t	main (void)

Variables
uint32_t	blockSize = BLOCK_SIZE
const float32_t	firCoeffs32 [NUM_TAPS]
static float32_t	firStateF32 [BLOCK_SIZE+NUM_TAPS-1]
uint32_t	numBlocks = TEST_LENGTH_SAMPLES/BLOCK_SIZE
float32_t	refOutput [TEST_LENGTH_SAMPLES]
float32_t	snr
float32_t	testInput_f32_1kHz_15kHz [TEST_LENGTH_SAMPLES]
static float32_t	testOutput [TEST_LENGTH_SAMPLES]

#define BLOCK_SIZE   32

#define NUM_TAPS   29

Referenced by main().

#define SNR_THRESHOLD_F32   140.0f

Referenced by main().

#define TEST_LENGTH_SAMPLES   320

Referenced by main().

int32_t main

(

void

)

References arm_snr_f32(), blockSize, firCoeffs32, firStateF32, NUM_TAPS, numBlocks, refOutput, snr, SNR_THRESHOLD_F32, status, TEST_LENGTH_SAMPLES, testInput_f32_1kHz_15kHz, and testOutput.

uint32_t blockSize = BLOCK_SIZE

const float32_t firCoeffs32[NUM_TAPS]

Initial value:

= {
  -0.0018225230f, -0.0015879294f, +0.0000000000f, +0.0036977508f, +0.0080754303f, +0.0085302217f, -0.0000000000f, -0.0173976984f,
  -0.0341458607f, -0.0333591565f, +0.0000000000f, +0.0676308395f, +0.1522061835f, +0.2229246956f, +0.2504960933f, +0.2229246956f,
  +0.1522061835f, +0.0676308395f, +0.0000000000f, -0.0333591565f, -0.0341458607f, -0.0173976984f, -0.0000000000f, +0.0085302217f,
  +0.0080754303f, +0.0036977508f, +0.0000000000f, -0.0015879294f, -0.0018225230f
}

Referenced by main().

float32_t firStateF32[BLOCK_SIZE+NUM_TAPS-1]

static

Referenced by main().

uint32_t numBlocks = TEST_LENGTH_SAMPLES/BLOCK_SIZE

Referenced by main().

float32_t refOutput[TEST_LENGTH_SAMPLES]

Referenced by main().

float32_t snr

Referenced by main().

float32_t testInput_f32_1kHz_15kHz[TEST_LENGTH_SAMPLES]

Referenced by main().

float32_t testOutput[TEST_LENGTH_SAMPLES]

static