ad74413r.c File Reference

Source file of AD74413r Driver. More...

#include "ad74413r.h"
#include "no_os_crc8.h"
#include "no_os_delay.h"
#include "no_os_error.h"
#include "no_os_util.h"
#include "no_os_alloc.h"

Include dependency graph for ad74413r.c:

Macros
#define	AD74413R_FRAME_SIZE   4
#define	AD74413R_CRC_POLYNOMIAL   0x7
#define	AD74413R_DIN_DEBOUNCE_LEN   NO_OS_BIT(5)

Functions
	NO_OS_DECLARE_CRC8_TABLE (_crc_table)
int	ad74413r_range_to_voltage_range (enum ad74413r_adc_range range, uint32_t *val)
	Convert the measuring range of the ADC from range enum values to millivolts.
int	ad74413r_range_to_voltage_offset (enum ad74413r_adc_range range, int32_t *val)
	Convert the measuring range of the ADC from range enum values to millivolts.
int	ad74413r_dac_voltage_to_code (uint32_t mvolts, uint32_t *code)
	Converts a millivolt value in the corresponding DAC 13 bit code.
int	ad74413r_reg_read_raw (struct ad74413r_desc *desc, uint32_t addr, uint8_t *val)
	Read a raw communication frame.
int	ad74413r_reg_write (struct ad74413r_desc *desc, uint32_t addr, uint16_t val)
	Write a register's value.
int	ad74413r_reg_read (struct ad74413r_desc *desc, uint32_t addr, uint16_t *val)
	Read a register's value.
int	ad74413r_reg_update (struct ad74413r_desc *desc, uint32_t addr, uint16_t mask, uint16_t val)
	Update a register's field.
int	ad74413r_nb_active_channels (struct ad74413r_desc *desc, uint8_t *nb_channels)
	Get the number of active channels.
int	ad74413r_clear_errors (struct ad74413r_desc *desc)
	Clear the ALERT_STATUS register.
int	ad74413r_set_info (struct ad74413r_desc *desc, uint16_t mode)
	Select which information the device will respond with (in the readback field) when a read operation is performed.
int	ad74413r_reset (struct ad74413r_desc *desc)
	Perform either a software or hardware reset and wait for device reset time.
int	ad74413r_set_channel_function (struct ad74413r_desc *desc, uint32_t ch, enum ad74413r_op_mode ch_func)
	Set the operation mode for a specific channel.
int	ad74413r_get_raw_adc_result (struct ad74413r_desc *desc, uint32_t ch, uint16_t *val)
	Read the raw ADC raw conversion value.
int	ad74413r_set_adc_channel_enable (struct ad74413r_desc *desc, uint32_t ch, bool status)
	Enable/disable a specific ADC channel.
int	ad74413r_set_diag_channel_enable (struct ad74413r_desc *desc, uint32_t ch, bool status)
	Enable conversions on a diagnostic register.
int	ad74413r_get_adc_range (struct ad74413r_desc *desc, uint32_t ch, uint16_t *val)
	Get the ADC measurement range for a specific channel.
int	ad74413r_get_adc_rejection (struct ad74413r_desc *desc, uint32_t ch, enum ad74413r_rejection *val)
	Get the rejection setting for a specific channel.
int	ad74413r_get_adc_diag_rejection (struct ad74413r_desc *desc, enum ad74413r_rejection *val)
	Get the rejection setting for a specific channel.
int	ad74413r_set_adc_rejection (struct ad74413r_desc *desc, uint32_t ch, enum ad74413r_rejection val)
	Set the rejection setting for a specific channel.
int	ad74413r_get_adc_rate (struct ad74413r_desc *desc, uint32_t ch, enum ad74413r_adc_sample *val)
	Get the ADC sample rate.
int	ad74413r_set_adc_rate (struct ad74413r_desc *desc, uint32_t ch, enum ad74413r_adc_sample val)
	Set the ADC sample rate.
int	ad74413r_get_adc_diag_rate (struct ad74413r_desc *desc, uint32_t ch, enum ad74413r_adc_sample *val)
	Get the ADC sample rate for the diagnostics channels.
int	ad74413r_set_adc_diag_rate (struct ad74413r_desc *desc, uint32_t ch, enum ad74413r_adc_sample val)
	Set the ADC sample rate for the diagnostics channels.
int	ad74413r_set_adc_conv_seq (struct ad74413r_desc *desc, enum ad74413r_conv_seq status)
	Start or stop ADC conversions.
int	ad74413r_get_adc_single (struct ad74413r_desc *desc, uint32_t ch, uint16_t *val, bool is_diag)
	Get a single ADC raw value for a specific channel, then power down the ADC.
int	ad74413r_adc_get_value (struct ad74413r_desc *desc, uint32_t ch, struct ad74413r_decimal *val)
	Get the ADC real value, according to the operation mode.
int	ad74413r_get_temp (struct ad74413r_desc *desc, uint32_t ch, uint16_t *temp)
	Read the die's temperature from the diagnostic register.
int	ad74413r_set_channel_dac_code (struct ad74413r_desc *desc, uint32_t ch, uint16_t dac_code)
	Set and load a code for the DAC on a specific channel.
int	ad74413r_set_diag (struct ad74413r_desc *desc, uint32_t ch, enum ad74413r_diag_mode diag_code)
	Set which diagnostic value to be loaded in the DIAG_RESULT register.
int	ad74413r_get_diag (struct ad74413r_desc *desc, uint32_t ch, uint16_t *diag_code)
	Get the diagnostic value for a specific channel.
int	ad74413r_set_debounce_mode (struct ad74413r_desc *desc, uint32_t ch, enum ad74413r_debounce_mode mode)
	Set the debounce mode for the IOx inputs when the ADC is running in digital input mode.
int	ad74413r_set_debounce_time (struct ad74413r_desc *desc, uint32_t ch, uint32_t time)
	Set the debounce settle time for the IOx inputs when the ADC is running in digital input mode.
int	ad74413r_gpo_get (struct ad74413r_desc *desc, uint32_t ch, uint8_t *val)
	Get the GPO value for a specific channel.
int	ad74413r_set_gpo_config (struct ad74413r_desc *desc, uint32_t ch, enum ad74413r_gpo_select config)
	Set the GPO operation mode.
int	ad74413r_set_threshold (struct ad74413r_desc *desc, uint32_t ch, uint32_t threshold)
	Set the threshold, for which a signal would be considered high, when the ADC is running in digital input mode.
int	ad74413r_gpo_set (struct ad74413r_desc *desc, uint32_t ch, uint8_t val)
	Set the logic value of a GPO pin.
int	ad74413r_gpo_set_multiple (struct ad74413r_desc *desc, uint32_t mask)
	Set multiple GPO values at once.
int	ad74413r_get_live (struct ad74413r_desc *desc, union ad74413r_live_status *status)
	Read the live status bits.
int	ad74413r_set_dac_clear_code (struct ad74413r_desc *desc, uint32_t ch, uint16_t code)
	The code value will be loaded into the DACs when the CLR_EN bit in the OUTPUT_CONFIGx registers is asserted and the DAC clear key is written.
int	ad74413r_clear_dac (struct ad74413r_desc *desc, uint32_t ch)
	Clear the DAC (to the code in DAC_CLR_CODE register)
int	ad74413r_dac_slew_enable (struct ad74413r_desc *desc, uint32_t ch, enum ad74413r_slew_lin_step step, enum ad74413r_lin_rate rate)
	Configure and enable slew rate control for a DAC on a specific channel.
int	ad74413r_dac_slew_disable (struct ad74413r_desc *desc, uint32_t ch)
	Disable the slew rate control.
int	ad74413r_set_therm_rst (struct ad74413r_desc *desc, bool enable)
	Enable or disable the higher thermal reset.
int	ad74413r_init (struct ad74413r_desc **desc, struct ad74413r_init_param *init_param)
	Initialize the device structure.
int	ad74413r_remove (struct ad74413r_desc *desc)
	Free the device descriptor.

Detailed Description

Source file of AD74413r Driver.

Author

Ciprian Regus (cipri.nosp@m.an.r.nosp@m.egus@.nosp@m.anal.nosp@m.og.co.nosp@m.m)

Copyright 2022(c) Analog Devices, Inc.

SPDX-License-Identifier: BSD-3-Clause

Macro Definition Documentation

AD74413R_CRC_POLYNOMIAL

#define AD74413R_CRC_POLYNOMIAL   0x7

AD74413R_DIN_DEBOUNCE_LEN

#define AD74413R_DIN_DEBOUNCE_LEN   NO_OS_BIT(5)

AD74413R_FRAME_SIZE

#define AD74413R_FRAME_SIZE   4

Function Documentation

ad74413r_adc_get_value()

int ad74413r_adc_get_value	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		struct ad74413r_decimal *	val )

Get the ADC real value, according to the operation mode.

Parameters

desc	- The device structure.
ch	- The channel index.
val	- The ADC real measurement value (the unit depends on the operation mode).

Returns

0 in case of success, negative error code otherwise.

I_Rsense = (Vmin + (ADC_CODE/65535) * range) / Rsense

ad74413r_clear_dac()

int ad74413r_clear_dac	(	struct ad74413r_desc *	desc,
		uint32_t	ch )

Clear the DAC (to the code in DAC_CLR_CODE register)

Parameters

desc	- The device structure.
ch	- The channel index.

Returns

0 in case of success, negative error code otherwise.

ad74413r_clear_errors()

int ad74413r_clear_errors

(

struct ad74413r_desc *

desc

)

Clear the ALERT_STATUS register.

Parameters

desc	- The device structure.

Returns

0 in case of success, negative error otherwise.

ad74413r_dac_slew_disable()

int ad74413r_dac_slew_disable	(	struct ad74413r_desc *	desc,
		uint32_t	ch )

Disable the slew rate control.

Parameters

desc	- The device structure.
ch	- The channel index.

Returns

0 in case of success, negative error code otherwise.

ad74413r_dac_slew_enable()

int ad74413r_dac_slew_enable	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		enum ad74413r_slew_lin_step	step,
		enum ad74413r_lin_rate	rate )

Configure and enable slew rate control for a DAC on a specific channel.

Parameters

desc	- The device structure.
ch	- The channel index.
step	- Number of codes per increment.
rate	- Number of increments per second.

Returns

0 in case of success, negative error code otherwise.

ad74413r_dac_voltage_to_code()

int ad74413r_dac_voltage_to_code	(	uint32_t	mvolts,
		uint32_t *	code )

Converts a millivolt value in the corresponding DAC 13 bit code.

Parameters

mvolts	- The millivolts value.
code	- The resulting DAC code.

Returns

0 in case of success, -EINVAL otherwise

ad74413r_get_adc_diag_rate()

int ad74413r_get_adc_diag_rate	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		enum ad74413r_adc_sample *	val )

Get the ADC sample rate for the diagnostics channels.

Parameters

desc	- The device structure.
ch	- The diagnostics channel index.
val	- The ADC sample rate value.

Returns

0 in case of success, negative error code otherwise.

ad74413r_get_adc_diag_rejection()

int ad74413r_get_adc_diag_rejection	(	struct ad74413r_desc *	desc,
		enum ad74413r_rejection *	val )

Get the rejection setting for a specific channel.

Parameters

desc	- The device structure.
val	- The ADC rejection setting.

Returns

0 in case of success, negative error code otherwise.

ad74413r_get_adc_range()

int ad74413r_get_adc_range	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		uint16_t *	val )

Get the ADC measurement range for a specific channel.

Parameters

desc	- The device structure.
ch	- The channel index.
val	- The ADC range value.

Returns

0 in case of success, negative error code otherwise.

ad74413r_get_adc_rate()

int ad74413r_get_adc_rate	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		enum ad74413r_adc_sample *	val )

Get the ADC sample rate.

Parameters

desc	- The device structure.
ch	- The channel index.
val	- The ADC sample rate value.

Returns

0 in case of success, negative error code otherwise.

ad74413r_get_adc_rejection()

int ad74413r_get_adc_rejection	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		enum ad74413r_rejection *	val )

Get the rejection setting for a specific channel.

Parameters

desc	- The device structure.
ch	- The channel index.
val	- The ADC rejection setting.

Returns

0 in case of success, negative error code otherwise.

ad74413r_get_adc_single()

int ad74413r_get_adc_single	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		uint16_t *	val,
		bool	is_diag )

Get a single ADC raw value for a specific channel, then power down the ADC.

Parameters

desc	- The device structure.
ch	- The channel index.
val	- The ADC raw result.
is_diag	- Select which channel type does the index refer to (I/O or diagnostics).

Returns

0 in case of success, negative error code otherwise.

Wait for all channels to complete the conversion.

ad74413r_get_diag()

int ad74413r_get_diag	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		uint16_t *	diag_code )

Get the diagnostic value for a specific channel.

Parameters

desc	- The device structure.
ch	- The channel index.
diag_code	- The diagnostic setting.

Returns

0 in case of success, negative error code otherwise.

ad74413r_get_live()

int ad74413r_get_live	(	struct ad74413r_desc *	desc,
		union ad74413r_live_status *	status )

Read the live status bits.

Parameters

desc	- The device structure.
status	- The register's value.

Returns

0 in case of success, negative error code otherwise.

ad74413r_get_raw_adc_result()

int ad74413r_get_raw_adc_result	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		uint16_t *	val )

Read the raw ADC raw conversion value.

Parameters

desc	- The device structure.
ch	- The channel index.
val	- The ADC raw conversion value.

Returns

0 in case of success, negative error code otherwise.

ad74413r_get_temp()

int ad74413r_get_temp	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		uint16_t *	temp )

Read the die's temperature from the diagnostic register.

Parameters

desc	- The device structure.
ch	- The diagnostic channel on which the temperature reading is assigned and enabled.
temp	- The measured temperature (in degrees Celsius).

Returns

0 in case of success, -EINVAL otherwise.

ad74413r_gpo_get()

int ad74413r_gpo_get	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		uint8_t *	val )

Get the GPO value for a specific channel.

Parameters

desc	- The device structure.
ch	- The channel index.
val	- The debounce time.

Returns

0 in case of success, negative error code otherwise.

ad74413r_gpo_set()

int ad74413r_gpo_set	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		uint8_t	val )

Set the logic value of a GPO pin.

Parameters

desc	- The device structure.
ch	- The channel index.
val	- The output logic state.

Returns

0 in case of success, negative error code otherwise.

ad74413r_gpo_set_multiple()

int ad74413r_gpo_set_multiple	(	struct ad74413r_desc *	desc,
		uint32_t	mask )

Set multiple GPO values at once.

Parameters

desc	- The device structure.
mask	- Active channels mask.

Returns

0 in case of success, negative error code otherwise.

ad74413r_init()

int ad74413r_init	(	struct ad74413r_desc **	desc,
		struct ad74413r_init_param *	init_param )

Initialize the device structure.

Parameters

desc	- The device structure to be initialized.
init_param	- Initialization parameter for the device descriptor.

Returns

0 in case of success, negative error code otherwise.

ad74413r_nb_active_channels()

int ad74413r_nb_active_channels	(	struct ad74413r_desc *	desc,
		uint8_t *	nb_channels )

Get the number of active channels.

Parameters

desc	- The device structure.
nb_channels	- The number of active channels

Returns

0 in case of success, negative error otherwise.

ad74413r_range_to_voltage_offset()

int ad74413r_range_to_voltage_offset	(	enum ad74413r_adc_range	range,
		int32_t *	val )

Convert the measuring range of the ADC from range enum values to millivolts.

Parameters

range	- ADC sample rate
val	- Rejection register value

Returns

0 in case of success, -EINVAL otherwise

ad74413r_range_to_voltage_range()

int ad74413r_range_to_voltage_range	(	enum ad74413r_adc_range	range,
		uint32_t *	val )

Convert the measuring range of the ADC from range enum values to millivolts.

Parameters

range	- ADC sample rate
val	- Rejection register value

Returns

0 in case of success, -EINVAL otherwise

ad74413r_reg_read()

int ad74413r_reg_read	(	struct ad74413r_desc *	desc,
		uint32_t	addr,
		uint16_t *	val )

Read a register's value.

Parameters

desc	- The device structure.
addr	- The register's address.
val	- The register's read value.

Returns

0 in case of success, negative error otherwise

ad74413r_reg_read_raw()

int ad74413r_reg_read_raw	(	struct ad74413r_desc *	desc,
		uint32_t	addr,
		uint8_t *	val )

Read a raw communication frame.

Parameters

desc	- The device structure.
addr	- The register's address.
val	- A raw comm frame.

Returns

0 in case of success, negative error otherwise.

Reading a register on AD74413r requires writing the address to the READ_SELECT register first and then doing another spi read, which will contain the requested register value.

ad74413r_reg_update()

int ad74413r_reg_update	(	struct ad74413r_desc *	desc,
		uint32_t	addr,
		uint16_t	mask,
		uint16_t	val )

Update a register's field.

Parameters

desc	- The device structure.
addr	- The register's address.
val	- The register's value.
mask	- The mask for a specific register field.

Returns

0 in case of success, negative error otherwise.

ad74413r_reg_write()

int ad74413r_reg_write	(	struct ad74413r_desc *	desc,
		uint32_t	addr,
		uint16_t	val )

Write a register's value.

Parameters

desc	- The device structure.
addr	- The register's address.
val	- The register's value.

Returns

0 in case of success, negative error otherwise

ad74413r_remove()

int ad74413r_remove

(

struct ad74413r_desc *

desc

)

Free the device descriptor.

Parameters

desc	- The device structure.

Returns

0 in case of success, -EINVAL otherwise.

ad74413r_reset()

int ad74413r_reset

(

struct ad74413r_desc *

desc

)

Perform either a software or hardware reset and wait for device reset time.

Parameters

desc	- The device structure.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_adc_channel_enable()

int ad74413r_set_adc_channel_enable	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		bool	status )

Enable/disable a specific ADC channel.

Parameters

desc	- The device structure.
ch	- The channel index.
status	- Enabled or disabled status.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_adc_conv_seq()

int ad74413r_set_adc_conv_seq	(	struct ad74413r_desc *	desc,
		enum ad74413r_conv_seq	status )

Start or stop ADC conversions.

Parameters

desc	- The device structure.
status	- The ADC conversion sequence.

Returns

0 in case of success, negative error code otherwise.

The write to CONV_SEQ powers up the ADC. If the ADC was powered down, the user must wait for 100us before the ADC starts doing conversions.

ad74413r_set_adc_diag_rate()

int ad74413r_set_adc_diag_rate	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		enum ad74413r_adc_sample	val )

Set the ADC sample rate for the diagnostics channels.

Parameters

desc	- The device structure.
ch	- The diagnostics channel index.
val	- The ADC sample rate value.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_adc_rate()

int ad74413r_set_adc_rate	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		enum ad74413r_adc_sample	val )

Set the ADC sample rate.

Parameters

desc	- The device structure.
ch	- The channel index.
val	- The ADC sample rate value.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_adc_rejection()

int ad74413r_set_adc_rejection	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		enum ad74413r_rejection	val )

Set the rejection setting for a specific channel.

Parameters

desc	- The device structure.
ch	- The channel index.
val	- The ADC rejection setting.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_channel_dac_code()

int ad74413r_set_channel_dac_code	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		uint16_t	dac_code )

Set and load a code for the DAC on a specific channel.

Parameters

desc	- The device structure.
ch	- The channel index.
dac_code	- The code for the DAC.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_channel_function()

int ad74413r_set_channel_function	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		enum ad74413r_op_mode	ch_func )

Set the operation mode for a specific channel.

Parameters

desc	- The device structure.
ch	- The channel index.
ch_func	- The operation mode.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_dac_clear_code()

int ad74413r_set_dac_clear_code	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		uint16_t	code )

The code value will be loaded into the DACs when the CLR_EN bit in the OUTPUT_CONFIGx registers is asserted and the DAC clear key is written.

Parameters

desc	- The device structure.
ch	- The channel index.
code	- The DAC code to be loaded

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_debounce_mode()

int ad74413r_set_debounce_mode	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		enum ad74413r_debounce_mode	mode )

Set the debounce mode for the IOx inputs when the ADC is running in digital input mode.

Parameters

desc	- The device structure.
ch	- The channel index.
mode	- The debounce mode.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_debounce_time()

int ad74413r_set_debounce_time	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		uint32_t	time )

Set the debounce settle time for the IOx inputs when the ADC is running in digital input mode.

Parameters

desc	- The device structure.
ch	- The channel index.
time	- The debounce time.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_diag()

int ad74413r_set_diag	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		enum ad74413r_diag_mode	diag_code )

Set which diagnostic value to be loaded in the DIAG_RESULT register.

Parameters

desc	- The device structure.
ch	- The channel index.
diag_code	- The diagnostic setting.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_diag_channel_enable()

int ad74413r_set_diag_channel_enable	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		bool	status )

Enable conversions on a diagnostic register.

Parameters

desc	- The device structure.
ch	- Diagnostic channel index.
status	- Enabled or disabled status.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_gpo_config()

int ad74413r_set_gpo_config	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		enum ad74413r_gpo_select	config )

Set the GPO operation mode.

Parameters

desc	- The device structure.
ch	- The channel index.
config	- The configuration setting.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_info()

int ad74413r_set_info	(	struct ad74413r_desc *	desc,
		uint16_t	mode )

Select which information the device will respond with (in the readback field) when a read operation is performed.

Parameters

desc	- The device structure.
mode	- Possible values: 0 - Respond with the readback address. 1 - Respond with status bits.

Returns

0 in case of success, negative error otherwise.

ad74413r_set_therm_rst()

int ad74413r_set_therm_rst	(	struct ad74413r_desc *	desc,
		bool	enable )

Enable or disable the higher thermal reset.

Parameters

desc	- The device structure.
enable	- The thermal reset status. false: reset at 110 deg. Celsius. true: reset at 140 deg. Celsius.

Returns

0 in case of success, negative error code otherwise.

ad74413r_set_threshold()

int ad74413r_set_threshold	(	struct ad74413r_desc *	desc,
		uint32_t	ch,
		uint32_t	threshold )

Set the threshold, for which a signal would be considered high, when the ADC is running in digital input mode.

Parameters

desc	- The device structure.
ch	- The channel index.
threshold	- The threshold value (in millivolts). The actual threshold set might not match this value (~500mV max. error), since it's fairly low resolution (29 possible values).

Returns

0 in case of success, negative error code otherwise.

Set a fixed range (0 - 16 V) for the threshold, so it would not depend on Vadd.

NO_OS_DECLARE_CRC8_TABLE()

NO_OS_DECLARE_CRC8_TABLE

(

_crc_table

)