ad4134_support.c File Reference

Source file for for AD4134 IIO Application. More...

#include "ad4134_support.h"
#include "no_os_error.h"
#include "no_os_delay.h"
#include "app_config.h"
#include "stm32_tdm_support.h"

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Macros
#define	GPIO_MIN_DBNCE_CNT   (2U)
#define	ODR_TRIGGER_WAIT_DBNCE_CNT   (20000U)
#define	DUAL_CHN_MODE_OFFSET   (2)
#define	LT6373_GPIO_DIR_CTRL_VAL   0xFF
#define	LT6373_GPIO_DATA_VAL   0x84
#define	DCLK_FREQ_SELECT   5
#define	MCLK_FREQ   (48000000)
#define	MCLK_DIVISOR   (2)
#define	ODR_INT_VAL   (uint32_t)(MCLK_FREQ / MCLK_DIVISOR / SAMPLING_RATE)
#define	ODR_VAL_INT_LSB   (uint8_t)(ODR_INT_VAL)
#define	ODR_VAL_INT_MID   (uint8_t)(ODR_INT_VAL >> 8)
#define	ODR_VAL_INT_MSB   (uint8_t)(ODR_INT_VAL >> 16)
#define	ODR_VAL_FLT_LSB   0x00
#define	ODR_VAL_FLT_MID0   0x00
#define	ODR_VAL_FLT_MID1   0x00
#define	ODR_VAL_FLT_MSB   0x00

Functions
enum ad4134_interface_modes	ad4134_get_interface_mode (void)
	Get the interface mode.
enum ad4134_data_capture_modes	ad4134_get_data_capture_mode (void)
	Get the data capture mode.
enum ad4134_asrc_modes	ad4134_get_asrc_mode (void)
	Get the ASRC mode.
int32_t	ad7134_data_capture_init (struct ad713x_dev *dev)
	Perform the data capture initialization.
int32_t	ad7134_read_all_channels_bit_banging (uint16_t *chn_data, bool check_odr_state)
	Read ADC data over DOUT0 and DOUT1 pins using bit-banging method for all channels.
int32_t	ad7134_perform_conv_and_read_sample (uint16_t *adc_data, uint8_t ch)
	Read ADC single sample data.

Detailed Description

Source file for for AD4134 IIO Application.

Copyright (c) 2023,2025 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

DCLK_FREQ_SELECT

#define DCLK_FREQ_SELECT   5

DUAL_CHN_MODE_OFFSET

#define DUAL_CHN_MODE_OFFSET   (2)

GPIO_MIN_DBNCE_CNT

#define GPIO_MIN_DBNCE_CNT   (2U)

LT6373_GPIO_DATA_VAL

#define LT6373_GPIO_DATA_VAL   0x84

LT6373_GPIO_DIR_CTRL_VAL

#define LT6373_GPIO_DIR_CTRL_VAL   0xFF

MCLK_DIVISOR

#define MCLK_DIVISOR   (2)

MCLK_FREQ

#define MCLK_FREQ   (48000000)

ODR_INT_VAL

#define ODR_INT_VAL   (uint32_t)(MCLK_FREQ / MCLK_DIVISOR / SAMPLING_RATE)

ODR_TRIGGER_WAIT_DBNCE_CNT

#define ODR_TRIGGER_WAIT_DBNCE_CNT   (20000U)

ODR_VAL_FLT_LSB

#define ODR_VAL_FLT_LSB   0x00

ODR_VAL_FLT_MID0

#define ODR_VAL_FLT_MID0   0x00

ODR_VAL_FLT_MID1

#define ODR_VAL_FLT_MID1   0x00

ODR_VAL_FLT_MSB

#define ODR_VAL_FLT_MSB   0x00

ODR_VAL_INT_LSB

#define ODR_VAL_INT_LSB   (uint8_t)(ODR_INT_VAL)

ODR_VAL_INT_MID

#define ODR_VAL_INT_MID   (uint8_t)(ODR_INT_VAL >> 8)

ODR_VAL_INT_MSB

#define ODR_VAL_INT_MSB   (uint8_t)(ODR_INT_VAL >> 16)

Function Documentation

ad4134_get_asrc_mode()

enum ad4134_asrc_modes ad4134_get_asrc_mode ( void  )

inline

Get the ASRC mode.

Returns

ASRC mode

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ad4134_get_data_capture_mode()

enum ad4134_data_capture_modes ad4134_get_data_capture_mode ( void  )

inline

Get the data capture mode.

Returns

Data capture mode

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ad4134_get_interface_mode()

enum ad4134_interface_modes ad4134_get_interface_mode ( void  )

inline

Get the interface mode.

Returns

Interface mode

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ad7134_data_capture_init()

int32_t ad7134_data_capture_init

(

struct ad713x_dev *

dev

)

Perform the data capture initialization.

Parameters

dev[in]

- AD7134 Device descriptor.

Returns

0 in case of success, negative error code otherwise

This function configures the AD7134 registers to capture the data

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ad7134_perform_conv_and_read_sample()

int32_t ad7134_perform_conv_and_read_sample	(	uint16_t *	adc_data,
		uint8_t	ch
	)

Read ADC single sample data.

Parameters

adc_data[in,out]	- Pointer to adc data read variable
ch[in]	- Channel for which data is to read

Returns

0 in case of success, negative error code otherwise

ad7134_read_all_channels_bit_banging()

int32_t ad7134_read_all_channels_bit_banging	(	uint16_t *	chn_data,
		bool	check_odr_state
	)

Read ADC data over DOUT0 and DOUT1 pins using bit-banging method for all channels.

Parameters

chn_data[in,out]	- Pointer to array for adc data for all channels
check_odr_state[in]	- Whether to check for ODR state change

Returns

0 in case of success, negative error code otherwise

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