nrf_axon_axpby_24_24_24()

nrf_axon_result_e nrf_axon_axpby_24_24_24	(	const int32_t *	x_ptr,
		const int32_t *	y_ptr,
		const int32_t *	a_scalar,
		const int32_t *	b_scalar,
		int32_t *	out_ptr,
		uint16_t	length,
		uint8_t	rounding_bits,
		nrf_axon_syncmode_blocking_e	block_mode,
		bool	keep_reservation )

#include <include/drivers/axon/nrf_axon_dsp_intrinsics.h>

"axpby"=>"a times x + b times y" Multiplies each x vector value by "a" and adds the product of "b" and the corresponding y vector value.

Parameters

x_ptr	x vector input. 24bit integers unpacked.
y_ptr	y vector input. 24bit integers unpacked.
a_scalar	Pointer to "a" scalar value. 24bit integers unpacked.
b_scalar	Pointer to "b" scalar value. 24bit integers unpacked.
out_ptr	output vector. 24bit integers unpacked, no extra stride, and rounded by rounding_bits. output can overlap either or both inputs.
length	Number of elements in the vectors (data samples). Must be a multiple of 2, at least 4, and no greater than 512. Does not include the stride.
rounding_bits	Number of bits to round the output by. 0 => no rounding, maximum of 31.
block_mode	recommnended to be set to NRF_AXON_SYNC_MODE_BLOCKING_POLLING.
keep_reservation	set to true if there are subsequent axon operations to execute immediately on completion. true prevents axon from be taken by another user and/or being powered off. Set to false if axon will not be used immediately after to free axon for other users and/or power down if idle.

Returns

kAxonResultSuccess on success or a negative error code (see nrf_axon_result_e)