Implementation of LTC2686/8 Driver. More...

#include <stdlib.h>
#include <stdio.h>
#include "no_os_error.h"
#include "no_os_alloc.h"
#include "ltc268x.h"

Include dependency graph for ltc268x.c:

Functions
int32_t	ltc268x_set_pwr_dac (struct ltc268x_dev *dev, uint16_t setting)

int32_t	ltc268x_set_dither_toggle (struct ltc268x_dev *dev, uint16_t setting)

int32_t	ltc268x_set_dither_mode (struct ltc268x_dev *dev, uint8_t channel, bool en)

int32_t	ltc268x_set_span (struct ltc268x_dev *dev, uint8_t channel, enum ltc268x_voltage_range range)

int32_t	ltc268x_set_dither_phase (struct ltc268x_dev *dev, uint8_t channel, enum ltc268x_dither_phase phase)

int32_t	ltc268x_set_dither_period (struct ltc268x_dev *dev, uint8_t channel, enum ltc268x_dither_period period)

int32_t	ltc268x_select_reg (struct ltc268x_dev *dev, uint8_t channel, enum ltc268x_a_b_register sel_reg)

int32_t	ltc268x_select_tg_dith_clk (struct ltc268x_dev *dev, uint8_t channel, enum ltc268x_clk_input clk_input)

int32_t	ltc268x_software_toggle (struct ltc268x_dev *dev, uint8_t channel)

int32_t	ltc268x_software_reset (struct ltc268x_dev *dev)

int32_t	ltc268x_set_voltage (struct ltc268x_dev *dev, uint8_t channel, float voltage)

int32_t	ltc268x_init (struct ltc268x_dev **device, struct ltc268x_init_param init_param)

int32_t	ltc268x_remove (struct ltc268x_dev *dev)
	Free the resources allocated by ltc268x_init(). More...

Detailed Description

Implementation of LTC2686/8 Driver.

Author: Mircea Caprioru (mirce.nosp@m.a.ca.nosp@m.prior.nosp@m.u@an.nosp@m.alog..nosp@m.com)

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of Analog Devices, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Function Documentation

◆ ltc268x_init()

int32_t ltc268x_init	(	struct ltc268x_dev **	device,
		struct ltc268x_init_param	init_param
	)

Initialize the device.

Parameters

device	- The device structure.
init_param	- The structure that contains the device initial parameters.

Returns: 0 in case of success, negative error code otherwise.

◆ ltc268x_remove()

int32_t ltc268x_remove ( struct ltc268x_dev * dev )

Free the resources allocated by ltc268x_init().

Parameters

dev	- The device structure.

Returns: 0 in case of success, negative error code otherwise.

◆ ltc268x_select_reg()

int32_t ltc268x_select_reg	(	struct ltc268x_dev *	dev,
		uint8_t	channel,
		enum ltc268x_a_b_register	sel_reg
	)

Select register A or B for value.

Parameters

dev	- The device structure.
channel	- The channel for which to change the mode.
sel_reg	- Select register A or B to store DAC output value.

Returns: 0 in case of success, negative error code otherwise.

◆ ltc268x_select_tg_dith_clk()

int32_t ltc268x_select_tg_dith_clk	(	struct ltc268x_dev *	dev,
		uint8_t	channel,
		enum ltc268x_clk_input	clk_input
	)

Select dither/toggle clock input.

Parameters

dev	- The device structure.
channel	- The channel for which to change the mode.
clk_input	- Select the source for the clock input.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc268x_set_dither_mode()

int32_t ltc268x_set_dither_mode	(	struct ltc268x_dev *	dev,
		uint8_t	channel,
		bool	en
	)

Set channel to dither mode.

Parameters

dev	- The device structure.
channel	- The channel for which to change the mode.
en	- enable or disable dither mode

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc268x_set_dither_period()

int32_t ltc268x_set_dither_period	(	struct ltc268x_dev *	dev,
		uint8_t	channel,
		enum ltc268x_dither_period	period
	)

Set channel dither period.

Parameters

dev	- The device structure.
channel	- The channel for which to change the mode.
period	- Dither period.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc268x_set_dither_phase()

int32_t ltc268x_set_dither_phase	(	struct ltc268x_dev *	dev,
		uint8_t	channel,
		enum ltc268x_dither_phase	phase
	)

Set channel dither phase.

Parameters

dev	- The device structure.
channel	- The channel for which to change the mode.
phase	- Dither phase.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc268x_set_dither_toggle()

int32_t ltc268x_set_dither_toggle	(	struct ltc268x_dev *	dev,
		uint16_t	setting
	)

Enable dither/toggle for selected channels.

Parameters

dev	- The device structure.
setting	- The setting. Accepted values: LTC268X_DITH_EN(x) \| LTC268X_DITH_EN(y) \| ...

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc268x_set_pwr_dac()

int32_t ltc268x_set_pwr_dac	(	struct ltc268x_dev *	dev,
		uint16_t	setting
	)

Power down the selected channels.

Parameters

dev	- The device structure.
setting	- The setting. Accepted values: LTC268X_PWDN(x) \| LTC268X_PWDN(y) \| ...

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc268x_set_span()

int32_t ltc268x_set_span	(	struct ltc268x_dev *	dev,
		uint8_t	channel,
		enum ltc268x_voltage_range	range
	)

Set channel span.

Parameters

dev	- The device structure.
channel	- The channel for which to change the mode.
range	- Voltage range.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc268x_set_voltage()

int32_t ltc268x_set_voltage	(	struct ltc268x_dev *	dev,
		uint8_t	channel,
		float	voltage
	)

Sets the output voltage of a channel.

Parameters

dev	- The device structure.
channel	- Channel option.
voltage	- Value to be outputted by the DAC(Volts).

Returns: The actual voltage value that can be outputted by the channel.

◆ ltc268x_software_reset()

int32_t ltc268x_software_reset ( struct ltc268x_dev * dev )

Software reset the device.

Parameters

dev	- The device structure.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc268x_software_toggle()

int32_t ltc268x_software_toggle	(	struct ltc268x_dev *	dev,
		uint8_t	channel
	)

Toggle the software source for dither/toggle.

Parameters

dev	- The device structure.
channel	- The channel for which to change the mode.

Returns: 0 in case of success, negative error code otherwise.

Functions

Detailed Description

Function Documentation

◆ ltc268x_init()

◆ ltc268x_remove()

◆ ltc268x_select_reg()

◆ ltc268x_select_tg_dith_clk()

◆ ltc268x_set_dither_mode()

◆ ltc268x_set_dither_period()

◆ ltc268x_set_dither_phase()

◆ ltc268x_set_dither_toggle()

◆ ltc268x_set_pwr_dac()

◆ ltc268x_set_span()

◆ ltc268x_set_voltage()

◆ ltc268x_software_reset()

◆ ltc268x_software_toggle()