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[feat][nmsis] add nmsis component and nn,dsp demo

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jzlv 2021-09-26 13:38:51 +08:00
parent b2aada479b
commit 5d1126d0f0
989 changed files with 286224 additions and 0 deletions
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44
examples/dsp/ComplexMathFunctions/cmplx_mult_cmplx.c Normal file
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#include "ref.h"
void ref_cmplx_mult_cmplx_f32(float32_t *pSrcA, float32_t *pSrcB,
float32_t *pDst, uint32_t numSamples)
{
uint32_t i;
for (i = 0; i < numSamples * 2; i += 2) {
pDst[i] = pSrcA[i] * pSrcB[i] - pSrcA[i + 1] * pSrcB[i + 1];
pDst[i + 1] = pSrcA[i] * pSrcB[i + 1] + pSrcA[i + 1] * pSrcB[i];
}
}
void ref_cmplx_mult_cmplx_q31(q31_t *pSrcA, q31_t *pSrcB, q31_t *pDst,
uint32_t numSamples)
{
uint32_t i;
q31_t mul1, mul2, mul3, mul4;
for (i = 0; i < numSamples * 2; i += 2) {
mul1 = ((q63_t)pSrcA[i] * pSrcB[i]) >> 33;
mul2 = ((q63_t)pSrcA[i + 1] * pSrcB[i + 1]) >> 33;
mul3 = ((q63_t)pSrcA[i] * pSrcB[i + 1]) >> 33;
mul4 = ((q63_t)pSrcA[i + 1] * pSrcB[i]) >> 33;
pDst[i] = mul1 - mul2;
pDst[i + 1] = mul3 + mul4;
}
}
void ref_cmplx_mult_cmplx_q15(q15_t *pSrcA, q15_t *pSrcB, q15_t *pDst,
uint32_t numSamples)
{
uint32_t i;
q31_t mul1, mul2, mul3, mul4;
for (i = 0; i < numSamples * 2; i += 2) {
mul1 = ((q31_t)pSrcA[i] * pSrcB[i]) >> 17;
mul2 = ((q31_t)pSrcA[i + 1] * pSrcB[i + 1]) >> 17;
mul3 = ((q31_t)pSrcA[i] * pSrcB[i + 1]) >> 17;
mul4 = ((q31_t)pSrcA[i + 1] * pSrcB[i]) >> 17;
pDst[i] = mul1 - mul2;
pDst[i + 1] = mul3 + mul4;
}
}