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Convert 8-bit fixed point value

Functions

void arm_q7_to_float (const q7_t *pSrc, float32_t *pDst, uint32_t blockSize)
 Converts the elements of the Q7 vector to floating-point vector. More...
 
void arm_q7_to_q15 (const q7_t *pSrc, q15_t *pDst, uint32_t blockSize)
 Converts the elements of the Q7 vector to Q15 vector. More...
 
void arm_q7_to_q31 (const q7_t *pSrc, q31_t *pDst, uint32_t blockSize)
 Converts the elements of the Q7 vector to Q31 vector. More...
 

Description

Function Documentation

void arm_q7_to_float ( const q7_t pSrc,
float32_t pDst,
uint32_t  blockSize 
)
Parameters
[in]pSrcpoints to the Q7 input vector
[out]pDstpoints to the floating-point output vector
[in]blockSizenumber of samples in each vector
Returns
none
Details
The equation used for the conversion process is:
     pDst[n] = (float32_t) pSrc[n] / 128;   0 <= n < blockSize.
 
void arm_q7_to_q15 ( const q7_t pSrc,
q15_t pDst,
uint32_t  blockSize 
)
Parameters
[in]pSrcpoints to the Q7 input vector
[out]pDstpoints to the Q15 output vector
[in]blockSizenumber of samples in each vector
Returns
none
Details
The equation used for the conversion process is:
    pDst[n] = (q15_t) pSrc[n] << 8;   0 <= n < blockSize.
void arm_q7_to_q31 ( const q7_t pSrc,
q31_t pDst,
uint32_t  blockSize 
)
Parameters
[in]pSrcpoints to the Q7 input vector
[out]pDstpoints to the Q31 output vector
[in]blockSizenumber of samples in each vector
Returns
none
Details
The equation used for the conversion process is:
    pDst[n] = (q31_t) pSrc[n] << 24;   0 <= n < blockSize.