DAC

Interfaces for Digital-to-Analog Converters. More...

Topics
	Device-specific DAC API extensions

Files
file	dac.h
	Main header file for DAC (Digital-to-Analog Converter) driver API.

Data Structures
struct	dac_channel_cfg
	Structure for specifying the configuration of a DAC channel. More...

Macros
#define	DAC_CHANNEL_BROADCAST   0xFF
	Broadcast channel identifier for DACs that support it.

Functions
int	dac_channel_setup (const struct device *dev, const struct dac_channel_cfg *channel_cfg)
	Configure a DAC channel.
int	dac_write_value (const struct device *dev, uint8_t channel, uint32_t value)
	Write a single value to a DAC channel.

Detailed Description

Interfaces for Digital-to-Analog Converters.

Since

2.3

Version

1.0.0

Macro Definition Documentation

DAC_CHANNEL_BROADCAST

#define DAC_CHANNEL_BROADCAST   0xFF

#include <zephyr/drivers/dac.h>

Broadcast channel identifier for DACs that support it.

Note

Only for use in dac_write_value().

Function Documentation

dac_channel_setup()

int dac_channel_setup	(	const struct device *	dev,
		const struct dac_channel_cfg *	channel_cfg )

#include <zephyr/drivers/dac.h>

Configure a DAC channel.

It is required to call this function and configure each channel before it is selected for a write request.

Parameters

dev	Pointer to the device structure for the driver instance.
channel_cfg	Channel configuration.

Return values

0	On success.
-EINVAL	If a parameter with an invalid value has been provided.
-ENOTSUP	If the requested resolution is not supported.

dac_write_value()

int dac_write_value	(	const struct device *	dev,
		uint8_t	channel,
		uint32_t	value )

#include <zephyr/drivers/dac.h>

Write a single value to a DAC channel.

Parameters

dev	Pointer to the device structure for the driver instance.
channel	Number of the channel to be used.
value	Data to be written to DAC output registers.

Return values

0	On success.
-EINVAL	If a parameter with an invalid value has been provided.