CMSIS DSP Software Library: Convert 16-bit Integer value
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Convert 16-bit Integer value
[Support Functions]
Functions
void arm_q15_to_float (q15_t *pSrc, float32_t *pDst, uint32_t blockSize)
void arm_q15_to_q31 (q15_t *pSrc, q31_t *pDst, uint32_t blockSize)
void arm_q15_to_q7 (q15_t *pSrc, q7_t *pDst, uint32_t blockSize)
Function Documentation
void arm_q15_to_float
(
q15_t *
pSrc,
float32_t *
pDst,
uint32_t
blockSize
)
Converts the elements of the Q15 vector to floating-point vector.
Parameters:
[in]*pSrcpoints to the Q15 input vector
[out]*pDstpoints to the floating-point output vector
[in]blockSizelength of the input vector
Returns:none.
Description:
The equation used for the conversion process is:
pDst[n] = (float32_t) pSrc[n] / 32768; 0 <= n < blockSize.
Definition at line 63 of file arm_q15_to_float.c.
void arm_q15_to_q31
(
q15_t *
pSrc,
q31_t *
pDst,
uint32_t
blockSize
)
Converts the elements of the Q15 vector to Q31 vector.
Parameters:
[in]*pSrcpoints to the Q15 input vector
[out]*pDstpoints to the Q31 output vector
[in]blockSizelength of the input vector
Returns:none.
Description:
The equation used for the conversion process is:
pDst[n] = (q31_t) pSrc[n] << 16; 0 <= n < blockSize.
Definition at line 56 of file arm_q15_to_q31.c.
void arm_q15_to_q7
(
q15_t *
pSrc,
q7_t *
pDst,
uint32_t
blockSize
)
Converts the elements of the Q15 vector to Q7 vector.
Parameters:
[in]*pSrcpoints to the Q15 input vector
[out]*pDstpoints to the Q7 output vector
[in]blockSizelength of the input vector
Returns:none.
Description:
The equation used for the conversion process is:
pDst[n] = (q7_t) pSrc[n] >> 8; 0 <= n < blockSize.
Definition at line 57 of file arm_q15_to_q7.c.
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