CMSIS DSP Software Library: Convert 16-bit Integer value

Functions

# 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] | *pSrc | points to the Q15 input vector
  [out] | *pDst | points to the floating-point output vector
  [in] | blockSize | length 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 66 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] | *pSrc | points to the Q15 input vector
  [out] | *pDst | points to the Q31 output vector
  [in] | blockSize | length 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 59 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] | *pSrc | points to the Q15 input vector
  [out] | *pDst | points to the Q7 output vector
  [in] | blockSize | length 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 60 of file arm_q15_to_q7.c.

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