nrf_axon_mar_16_24_32()

nrf_axon_result_e nrf_axon_mar_16_24_32	(	const int16_t *	x_ptr,
		const int32_t *	y_ptr,
		int32_t *	out_ptr,
		uint16_t	length,
		uint8_t	rounding_bits,
		nrf_axon_syncmode_blocking_e	block_mode,
		bool	keep_reservation )

"Mar" => "Multiply, Accumulate, recursive" sums the products of elements in input vector X and input vector Y (ie, dot product)

Parameters

x_ptr	x vector input. 16bit integers packed.
y_ptr	y vector input. 24bit integers unpacked.
out_ptr	output scalar. 32bit integer rounded by rounding_bits.
length	Number of elements in the vectors (data samples). Must be a multiple of 4, at least 8, and no greater than 1024.
rounding_bits	Number of bits to round the output by. 0 => no rounding, maximum of 31.

Returns

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