ad7689_support.c File Reference

AD7689 no-os drivers support file. More...

#include <string.h>
#include "ad7689_support.h"
#include "ad7689_iio.h"
#include "ad7689_user_config.h"
#include "no_os_delay.h"
#include "no_os_spi.h"
#include "no_os_util.h"
#include "no_os_gpio.h"
#include "no_os_error.h"

Include dependency graph for ad7689_support.c:

Macros
#define	BYTE_SIZE   8
#define	CONFIG_OVERRIDE_BIT_POS   13
#define	CHN_CONFIG_SELECT_BIT_POS   10
#define	CHN_SELECT_BIT_POS   7
#define	REF_SRC_SELECT_BIT_POS   3

Functions
int32_t	ad7689_read_single_sample (uint8_t input_chn, uint32_t *raw_data)
	Read the single ADC sample (raw data) for input channel. More...
int32_t	ad7689_read_converted_sample (uint8_t *adc_data, uint8_t next_chn)
	Read ADC raw data for recently sampled channel and trigger new conversion. More...
int32_t	ad7689_perform_init_cnv (uint8_t first_active_chn, uint8_t second_active_chn, uint8_t num_of_active_channels)
	Perform the 2 dummy conversions after device initialization. More...

Detailed Description

AD7689 no-os drivers support file.

Copyright (c) 2022 Analog Devices, Inc. All rights reserved.

This software is proprietary to Analog Devices, Inc. and its licensors. By using this software you agree to the terms of the associated Analog Devices Software License Agreement.

Macro Definition Documentation

BYTE_SIZE

#define BYTE_SIZE   8

CHN_CONFIG_SELECT_BIT_POS

#define CHN_CONFIG_SELECT_BIT_POS   10

CHN_SELECT_BIT_POS

#define CHN_SELECT_BIT_POS   7

CONFIG_OVERRIDE_BIT_POS

#define CONFIG_OVERRIDE_BIT_POS   13

REF_SRC_SELECT_BIT_POS

#define REF_SRC_SELECT_BIT_POS   3

Function Documentation

ad7689_perform_init_cnv()

int32_t ad7689_perform_init_cnv	(	uint8_t	first_active_chn,
		uint8_t	second_active_chn,
		uint8_t	num_of_active_channels
	)

Perform the 2 dummy conversions after device initialization.

Parameters

first_active_chn[in]	- First ADC channel in sequencer
second_active_chn[in]	- Second ADC channel in sequencer
num_of_active_channels[in]	- Number of ADC channels in sequencer

Returns

0 in case of success, negative error code otherwise

ad7689_read_converted_sample()

int32_t ad7689_read_converted_sample	(	uint8_t *	adc_data,
		uint8_t	next_chn
	)

Read ADC raw data for recently sampled channel and trigger new conversion.

Parameters

adc_data[in,out]	- Pointer to adc data read variable
next_chn[in]	- Next channel in sequence

Returns

0 in case of success, negative error code otherwise

Note

This function is intended to call from the conversion end trigger event. Therefore, this function should just read raw ADC data without further monitoring conversion end event

ad7689_read_single_sample()

int32_t ad7689_read_single_sample	(	uint8_t	input_chn,
		uint32_t *	raw_data
	)

Read the single ADC sample (raw data) for input channel.

Parameters

input_chn[in]	- Input channel to be sampled and read data for
raw_data[in,out]-	ADC raw data

Returns

0 in case of success, negative error code otherwise