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AD5677R NanDAC+无操作系统驱动程序

2512819 2021-03-23 | pdf | 83.58KB | 次下载 | 免费

资料介绍

This version (22 Apr 2020 07:32) was approved by Mircea Caprioru.The Previously approved version (29 Jan 2020 12:14) is available.

nanoDAC+ No-OS Driver

nanoDAC+ No-OS Driver

Supported Devices

Overview

The AD5673R, AD5674R, AD5676, AD5676R, AD5675, AD5675R, AD5677R, AD5679R,AD5686, AD5686R, AD5696, AD5696R / AD5685R, AD5695R / AD5672R, AD5671R, AD5684, AD5684R, AD5694, AD5694R, AD5681R, AD5682R, AD5683R, AD5683, AD5691R, AD5692R, AD5693R, AD5693 are low power, single-channel/octal/quad, 16-/14-/12-bit, buffered voltage output digital-to-analog converter (DAC). All devices operate from a single 2.7 V to 5.5 V supply and are guaranteed monotonic by design.

The AD5673R, AD5674R, AD5676, AD5676R, AD5675, AD5675R, AD5672R, AD5671R,AD5677R, AD5679R, AD5686, AD5686R, AD5685R, AD5684, AD5684R, AD5695R, AD5694, AD5694R, AD5696, AD5696R,AD5681R, AD5682R, AD5683R, AD5683, AD5691R, AD5692R, AD5693R, AD5693 also incorporates a power-on reset circuit and a RSTSEL pin that ensures that the DAC outputs power up to zero scale or midscale and remain there until a valid write takes place. Each device contains a per channel power-down feature that reduces the current consumption of the device to 2 µA/2.5 µA / 4 µA while in power-down mode.

The AD5674R, AD5676, AD5676R, AD5672R, AD5679R, AD5686, AD5686R, AD5685R, AD5684, AD5684R, AD5681R, AD5682R, AD5683R, AD5683 employs a versatile serial peripheral interface (SPI) that operates at clock rates up to 50 MHz.

The AD5673R, AD5675, AD5675R, AD5677R, AD5695R, AD5671R, AD5694, AD5694R, AD5696, AD5696R, AD5691R, AD5692R, AD5693R, AD5693 use a versatile 2-wire serial interface that operates at clock rates up to 400 kHz.

All devices contain a VLOGIC pin intended for 1.8 V/3 V/5 V logic.

Applications:

Optical transceivers
Base-station power amplifiers
Process control (programmable logic control [PLC] input/output cards)
Industrial automation
Data acquisition systems

Driver Description

Functions Declarations

Function	Description
int32_t ad5686_init(struct ad5686_dev **device, struct ad5686_init_param init_param);	Initialize the device.
int32_t ad5686_remove(struct ad5686_dev *dev);	Free the resources allocated by ad5686_init().
uint16_t ad5686_set_shift_reg(struct ad5686_dev *dev, uint8_t command, uint8_t address, uint16_t data);	Write to input register.
void ad5686_write_register(struct ad5686_dev *dev, enum ad5686_dac_channels channel, uint16_t data);	Write to Input Register n (dependent on LDAC).
void ad5686_update_register(struct ad5686_dev *dev, enum ad5686_dac_channels channel);	Update DAC Register n with contents of Input Register n
void ad5686_write_update_register(struct ad5686_dev *dev, enum ad5686_dac_channels channel, uint16_t data);	Write to and update DAC channel n .
uint16_t ad5686_read_back_register(struct ad5686_dev *dev, enum ad5686_dac_channels channel);	Read back Input Register n.
void ad5686_power_mode(struct ad5686_dev *dev, enum ad5686_dac_channels channel, uint8_t mode);	Power down the selected channels.
void ad5686_ldac_mask(struct ad5686_dev *dev, enum ad5686_dac_channels channel, uint8_t enable);	Set up LDAC mask register.
void ad5686_software_reset(struct ad5686_dev *dev);	Software reset (power-on reset)
void ad5686_internal_reference(struct ad5686_dev *dev, uint8_t value);	Write to Internal reference setup register
void ad5686_daisy_chain_en(struct ad5686_dev *dev, uint8_t value);	Set up DCEN register (daisy-chain enable)
void ad5686_read_back_en(struct ad5686_dev *dev, uint8_t value);	Set up readback register (readback enable)
int32_t ad5686_gain_mode(struct ad5686_dev *dev, uint8_t value);	Set gain mode (AD5683 family specific)

Types Declarations

enum ad5686_type {
	ID_AD5671R,
	ID_AD5672R,
       ID_AD5673R,
	ID_AD5674R,
	ID_AD5675R,
	ID_AD5676,
	ID_AD5676R,
       ID_AD5677R,
	ID_AD5679R,
	ID_AD5686,
	ID_AD5684R,
	ID_AD5685R,
	ID_AD5686R,
	ID_AD5694,
	ID_AD5694R,
	ID_AD5695R,
	ID_AD5696,
	ID_AD5696R,
	ID_AD5681R,
	ID_AD5682R,
	ID_AD5683R,
	ID_AD5683,
	ID_AD5691R,
	ID_AD5692R,
	ID_AD5693R,
	ID_AD5693
};
 
enum comm_type {
	SPI,
	I2C,
};
 
enum ad5686_dac_channels {
	AD5686_CH_0 = 0,
	AD5686_CH_1,
	AD5686_CH_2,
	AD5686_CH_3,
	AD5686_CH_4,
	AD5686_CH_5,
	AD5686_CH_6,
	AD5686_CH_7,
	AD5686_CH_8,
	AD5686_CH_9,
	AD5686_CH_10,
	AD5686_CH_11,
	AD5686_CH_12,
	AD5686_CH_13,
	AD5686_CH_14,
	AD5686_CH_15,
};
 
struct ad5686_chip_info {
	uint8_t		resolution;
	uint8_t		register_map;
	enum comm_type	communication;
	const uint32_t *channel_addr;
};
 
struct ad5686_dev {
	/* I2C */
	i2c_desc	*i2c_desc;
	/* SPI */
	spi_desc	*spi_desc;
	/* GPIO */
	gpio_desc	*gpio_reset;
	gpio_desc	*gpio_ldac;
	/* Device Settings */
	enum ad5686_type	act_device;
	uint32_t power_down_mask;
	uint32_t ldac_mask;
};
 
struct ad5686_init_param {
	/* I2C */
	i2c_init_param	i2c_init;
	/* SPI */
	spi_init_param	spi_init;
	/* GPIO */
	int8_t		gpio_reset;
	int8_t		gpio_ldac;
	/* Device Settings */
	enum ad5686_type	act_device;
};