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CMSIS-DSP
Version 1.4.7
CMSIS DSP Software Library
|
| const uint16_t armBitRevTable[1024] |
for(l=1;l <= N/4;l++)
{
for(i=0;i<logN2;i++)
{
a[i]=l&(1<<i);
}
for(j=0; j<logN2; j++)
{
if (a[j]!=0)
y[l]+=(1<<((logN2-1)-j));
}
y[l] = y[l] >> 1;
} Referenced by arm_cfft_radix2_init_f32(), arm_cfft_radix2_init_q15(), arm_cfft_radix2_init_q31(), arm_cfft_radix4_init_f32(), arm_cfft_radix4_init_q15(), and arm_cfft_radix4_init_q31().
| const float32_t twiddleCoef_1024[2048] |
for(i = 0; i< N/; i++)
{
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
} Referenced by arm_rfft_fast_init_f32().
| const q15_t twiddleCoef_1024_q15[1536] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefq15[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefq15[2*i+1]= sin(i * 2*PI/(float)N);
} | const q31_t twiddleCoef_1024_q31[1536] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefQ31[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefQ31[2*i+1]= sin(i * 2*PI/(float)N);
} | const float32_t twiddleCoef_128[256] |
for(i = 0; i< N/; i++)
{
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
} Referenced by arm_rfft_fast_init_f32().
| const q15_t twiddleCoef_128_q15[192] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefq15[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefq15[2*i+1]= sin(i * 2*PI/(float)N);
} | const q31_t twiddleCoef_128_q31[192] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefQ31[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefQ31[2*i+1]= sin(i * 2*PI/(float)N);
} | const float32_t twiddleCoef_16[32] |
for(i = 0; i< N/; i++)
{
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
} Referenced by arm_rfft_fast_init_f32().
| const q15_t twiddleCoef_16_q15[24] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefq15[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefq15[2*i+1]= sin(i * 2*PI/(float)N);
} | const q31_t twiddleCoef_16_q31[24] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefQ31[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefQ31[2*i+1]= sin(i * 2*PI/(float)N);
} | const float32_t twiddleCoef_2048[4096] |
for(i = 0; i< N/; i++)
{
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
} Referenced by arm_rfft_fast_init_f32().
| const q15_t twiddleCoef_2048_q15[3072] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefq15[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefq15[2*i+1]= sin(i * 2*PI/(float)N);
} | const q31_t twiddleCoef_2048_q31[3072] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefQ31[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefQ31[2*i+1]= sin(i * 2*PI/(float)N);
} | const float32_t twiddleCoef_256[512] |
for(i = 0; i< N/; i++)
{
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
} Referenced by arm_rfft_fast_init_f32().
| const q15_t twiddleCoef_256_q15[384] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefq15[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefq15[2*i+1]= sin(i * 2*PI/(float)N);
} | const q31_t twiddleCoef_256_q31[384] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefQ31[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefQ31[2*i+1]= sin(i * 2*PI/(float)N);
} | const float32_t twiddleCoef_32[64] |
for(i = 0; i< N/; i++)
{
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
} Referenced by arm_rfft_fast_init_f32().
| const q15_t twiddleCoef_32_q15[48] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefq15[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefq15[2*i+1]= sin(i * 2*PI/(float)N);
} | const q31_t twiddleCoef_32_q31[48] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefQ31[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefQ31[2*i+1]= sin(i * 2*PI/(float)N);
} | const float32_t twiddleCoef_4096[8192] |
for(i = 0; i< N/; i++)
{
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
} | const q15_t twiddleCoef_4096_q15[6144] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefq15[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefq15[2*i+1]= sin(i * 2*PI/(float)N);
} Referenced by arm_cfft_radix2_init_q15(), and arm_cfft_radix4_init_q15().
| const q31_t twiddleCoef_4096_q31[6144] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefQ31[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefQ31[2*i+1]= sin(i * 2*PI/(float)N);
} Referenced by arm_cfft_radix2_init_q31(), and arm_cfft_radix4_init_q31().
| const float32_t twiddleCoef_512[1024] |
for(i = 0; i< N/; i++)
{
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
} Referenced by arm_rfft_fast_init_f32().
| const q15_t twiddleCoef_512_q15[768] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefq15[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefq15[2*i+1]= sin(i * 2*PI/(float)N);
} | const q31_t twiddleCoef_512_q31[768] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefQ31[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefQ31[2*i+1]= sin(i * 2*PI/(float)N);
} | const float32_t twiddleCoef_64[128] |
for(i = 0; i< N/; i++)
{
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
} Referenced by arm_rfft_fast_init_f32().
| const q15_t twiddleCoef_64_q15[96] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefq15[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefq15[2*i+1]= sin(i * 2*PI/(float)N);
} | const q31_t twiddleCoef_64_q31[96] |
for(i = 0; i< 3N/4; i++)
{
twiddleCoefQ31[2*i]= cos(i * 2*PI/(float)N);
twiddleCoefQ31[2*i+1]= sin(i * 2*PI/(float)N);
}