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lt8722.h File Reference

Header file for the LT8722 Driver. More...

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "no_os_gpio.h"
#include "no_os_spi.h"
#include "no_os_units.h"
#include "no_os_util.h"
Include dependency graph for lt8722.h:

Classes

struct  lt8722_reg
 LT8722 register structure. More...
 
struct  lt8722_command
 LT8722 command structure. More...
 
struct  lt8722_packet
 LT8722 packet structure. More...
 
struct  lt8722_init_param
 Initialization parameter for the LT8722 device. More...
 
struct  lt8722_dev
 Device descriptor for LT8722. More...
 

Macros

#define LT8722_CRC_POLYNOMIAL   0x07
 
#define LT8722_MAX_REGISTER_SIZE   4
 
#define LT8722_NUM_REGISTERS   8
 
#define LT8722_STATUS_ACQUISITION_COMMAND   0xF0
 
#define LT8722_DATA_WRITE_COMMAND   0xF2
 
#define LT8722_DATA_READ_COMMAND   0xF4
 
#define LT8722_STATUS_ACQUISITION_COMMAND_SIZE   4
 
#define LT8722_DATA_WRITE_COMMAND_SIZE   8
 
#define LT8722_DATA_READ_COMMAND_SIZE   8
 
#define LT8722_ACK_ACKNOWLEDGE   0xA5
 
#define LT8722_ACK_NON_ACKNOWLEDGE   0xC3
 
#define LT8722_ACK_UNSUPPORTED_ADDRESS   0x0F
 
#define LT8722_ACK_STUCK_AT_0   0x00
 
#define LT8722_ACK_STUCK_AT_1   0xFF
 
#define LT8722_SPIS_COMMAND   0x00
 
#define LT8722_SPIS_STATUS   0x01
 
#define LT8722_SPIS_DAC_ILIMN   0x02
 
#define LT8722_SPIS_DAC_ILIMP   0x03
 
#define LT8722_SPIS_DAC   0x04
 
#define LT8722_SPIS_OV_CLAMP   0x05
 
#define LT8722_SPIS_UV_CLAMP   0x06
 
#define LT8722_SPIS_AMUX   0x07
 
#define LT8722_SPIS_COMMAND_SIZE   22
 
#define LT8722_SPIS_STATUS_SIZE   11
 
#define LT8722_SPIS_DAC_ILIMN_SIZE   9
 
#define LT8722_SPIS_DAC_ILIMP_SIZE   9
 
#define LT8722_SPIS_DAC_SIZE   32
 
#define LT8722_SPIS_OV_CLAMP_SIZE   4
 
#define LT8722_SPIS_UV_CLAMP_SIZE   4
 
#define LT8722_SPIS_AMUX_SIZE   7
 
#define LT8722_SPIS_COMMAND_MASK   NO_OS_GENMASK(21, 0)
 
#define LT8722_SPIS_STATUS_MASK   NO_OS_GENMASK(10, 0)
 
#define LT8722_SPIS_DAC_ILIMN_MASK   NO_OS_GENMASK(8, 0)
 
#define LT8722_SPIS_DAC_ILIMP_MASK   NO_OS_GENMASK(8, 0)
 
#define LT8722_SPIS_DAC_MASK   NO_OS_GENMASK(31, 0)
 
#define LT8722_SPIS_OV_CLAMP_MASK   NO_OS_GENMASK(3, 0)
 
#define LT8722_SPIS_UV_CLAMP_MASK   NO_OS_GENMASK(3, 0)
 
#define LT8722_SPIS_AMUX_MASK   NO_OS_GENMASK(6, 0)
 
#define LT8722_SPIS_COMMAND_DEFAULT_VALUE   0x08A214
 
#define LT8722_SPIS_STATUS_DEFAULT_VALUE   0x0
 
#define LT8722_SPIS_DAC_ILIMN_DEFAULT_VALUE   0x1FF
 
#define LT8722_SPIS_DAC_ILIMP_DEFAULT_VALUE   0x000
 
#define LT8722_SPIS_DAC_DEFAULT_VALUE   0xFF000000
 
#define LT8722_SPIS_OV_CLAMP_DEFAULT_VALUE   0xF
 
#define LT8722_SPIS_UV_CLAMP_DEFAULT_VALUE   0x0
 
#define LT8722_SPIS_AMUX_DEFAULT_VALUE   0x00
 
#define LT8722_ENABLE_REQ_MASK   NO_OS_BIT(0)
 
#define LT8722_SWEN_REQ_MASK   NO_OS_BIT(1)
 
#define LT8722_SW_FRQ_SET_MASK   NO_OS_GENMASK(4, 2)
 
#define LT8722_SW_FRQ_ADJ_MASK   NO_OS_GENMASK(6, 5)
 
#define LT8722_SYS_DC_MASK   NO_OS_GENMASK(8, 7)
 
#define LT8722_VCC_VREG_MASK   NO_OS_BIT(9)
 
#define LT8722_SW_VC_INT_MASK   NO_OS_GENMASK(13, 11)
 
#define LT8722_SPI_RST_MASK   NO_OS_BIT(14)
 
#define LT8722_PWR_LIM_POS   15
 
#define LT8722_PWR_LIM_MASK   NO_OS_GENMASK(18, 15)
 
#define LT8722_SPI_RST_RESET   0b1
 
#define LT8722_SWEN_MASK   NO_OS_BIT(0)
 
#define LT8722_SRVO_ILIM_MASK   NO_OS_BIT(1)
 
#define LT8722_SRVO_PLIM_MASK   NO_OS_BIT(2)
 
#define LT8722_MIN_OT_MASK   NO_OS_BIT(3)
 
#define LT8722_POR_OCC_MASK   NO_OS_BIT(4)
 
#define LT8722_OVER_CURRENT_MASK   NO_OS_BIT(5)
 
#define LT8722_TSD_MASK   NO_OS_BIT(6)
 
#define LT8722_VCC_UVLO_MASK   NO_OS_BIT(7)
 
#define LT8722_VDDIO_UVLO_MASK   NO_OS_BIT(8)
 
#define LT8722_CP_UVLO_MASK   NO_OS_BIT(9)
 
#define LT8722_V2P5_UVLO_MASK   NO_OS_BIT(10)
 
#define LT8722_FAULTS_MASK   NO_OS_GENMASK(10, 5)
 
#define LT8722_SPIS_DAC_ILIMN_MASK   NO_OS_GENMASK(8, 0)
 
#define LT8722_SPIS_DAC_ILIMN_MIN   0x030
 
#define LT8722_SPIS_DAC_ILIMN_MAX   0x1FF
 
#define LT8722_SPIS_DAC_ILIMP_MASK   NO_OS_GENMASK(8, 0)
 
#define LT8722_SPIS_DAC_ILIMP_MIN   0x000
 
#define LT8722_SPIS_DAC_ILIMP_MAX   0x1CE
 
#define LT8722_SPIS_DAC_MASK   NO_OS_GENMASK(31, 0)
 
#define LT8722_SPIS_OV_CLAMP_MASK   NO_OS_GENMASK(3, 0)
 
#define LT8722_SPIS_UV_CLAMP_MASK   NO_OS_GENMASK(3, 0)
 
#define LT8722_AMUX_MASK   NO_OS_GENMASK(3, 0)
 
#define LT8722_AMUX_TEST_MASK   NO_OS_GENMASK(5, 4)
 
#define LT8722_AOUT_EN_MASK   NO_OS_BIT(6)
 
#define LT8722_DAC_RESOLUTION   25
 
#define LT8722_DAC_OFFSET   1250000000LL
 
#define LT8722_DAC_VREF   2500000000LL
 
#define LT8722_VOLTAGE_SCALE   NANO
 

Enumerations

enum  lt8722_enable_req {
  LT8722_ENABLE_REQ_DISABLED ,
  LT8722_ENABLE_REQ_ENABLED
}
 VCC LDO enable bit and linear power stage enable request bit. More...
 
enum  lt8722_swen_req {
  LT8722_SWEN_REQ_DISABLED ,
  LT8722_SWEN_REQ_ENABLED
}
 PWM switch enable request bit. More...
 
enum  lt8722_sw_frq_set {
  LT8722_SW_FRQ_SET_0_5MHZ ,
  LT8722_SW_FRQ_SET_1MHZ ,
  LT8722_SW_FRQ_SET_1_5MHZ ,
  LT8722_SW_FRQ_SET_2MHZ ,
  LT8722_SW_FRQ_SET_2_5MHZ ,
  LT8722_SW_FRQ_SET_3MHZ ,
  LT8722_SW_FRQ_SET_3MHZ_2 ,
  LT8722_SW_FRQ_SET_3MHZ_3
}
 PWM switch frequency control bits. More...
 
enum  lt8722_sw_frq_adj {
  LT8722_SW_FRQ_ADJ_0_PERCENT ,
  LT8722_SW_FRQ_ADJ_POSITIVE_15_PERCENT ,
  LT8722_SW_FRQ_ADJ_NEGATIVE_15_PERCENT ,
  LT8722_SW_FRQ_ADJ_0_PERCENT_2
}
 PWM switch frequency adjustment bits. More...
 
enum  lt8722_vcc_vreg {
  LT8722_VCC_VREG_3_1V ,
  LT8722_VCC_VREG_3_4V
}
 VCC LDO regulation control bits. More...
 
enum  lt8722_sw_vc_int {
  LT8722_SW_VC_INT_0_252A ,
  LT8722_SW_VC_INT_0_594A ,
  LT8722_SW_VC_INT_0_936A ,
  LT8722_SW_VC_INT_1_278A ,
  LT8722_SW_VC_INT_1_620A ,
  LT8722_SW_VC_INT_1_962A ,
  LT8722_SW_VC_INT_2_304A ,
  LT8722_SW_VC_INT_2_646A
}
 Typical peak inductor current after BST-SW refresh period control bits. More...
 
enum  lt8722_pwr_lim {
  LT8722_PWR_LIM_2W ,
  LT8722_PWR_LIM_NO_LIMIT ,
  LT8722_PWR_LIM_3W ,
  LT8722_PWR_LIM_3_5W
}
 Linear power stage MOSFET power limit control bits. More...
 
enum  lt8722_sys_dc {
  LT8722_SYS_DC_20_80_DUTY_CYCLE ,
  LT8722_SYS_DC_15_85_DUTY_CYCLE ,
  LT8722_SYS_DC_10_90_DUTY_CYCLE
}
 PWM duty cycle control bits. More...
 
enum  lt8722_amux {
  LT8722_AMUX_VILIMP ,
  LT8722_AMUX_VILIMN ,
  LT8722_AMUX_VDAC ,
  LT8722_AMUX_VOUT ,
  LT8722_AMUX_IOUT ,
  LT8722_AMUX_V2P5 ,
  LT8722_AMUX_V1P25 ,
  LT8722_AMUX_V1P65 ,
  LT8722_AMUX_VTEMP ,
  LT8722_AMUX_VIN ,
  LT8722_AMUX_VCC ,
  LT8722_AMUX_VDDIO ,
  LT8722_AMUX_VSFB ,
  LT8722_AMUX_VSFB_2 ,
  LT8722_AMUX_VSFB_3 ,
  LT8722_AMUX_VSFB_4
}
 Analog multiplexer control bits. More...
 
enum  lt8722_aout_en {
  LT8722_AOUT_EN_DISABLED ,
  LT8722_AOUT_EN_ENABLED
}
 Analog output buffer enable control bits. More...
 

Functions

int32_t lt8722_voltage_to_dac (int64_t voltage)
 Convert voltage to DAC code.
 
int64_t lt8722_dac_to_voltage (int32_t dac)
 Convert DAC code to nanovolts.
 
int lt8722_transaction (struct lt8722_dev *dev, struct lt8722_packet *packet)
 LT8722 device SPI transaction.
 
int lt8722_reg_read (struct lt8722_dev *dev, uint8_t address, uint32_t *data)
 Read data from LT8722 device.
 
int lt8722_reg_write (struct lt8722_dev *dev, uint8_t address, uint32_t data)
 Write data to LT8722 device.
 
int lt8722_reg_write_mask (struct lt8722_dev *dev, uint8_t address, uint32_t mask, uint32_t data)
 Write to LT8722 device register with mask.
 
int lt8722_get_status (struct lt8722_dev *dev, uint16_t *status)
 Get LT8722 device status.
 
int lt8722_clear_faults (struct lt8722_dev *dev)
 Clear LT8722 device faults.
 
int lt8722_set_enable_req (struct lt8722_dev *dev, bool value)
 Set ENABLE_REQ field in LT8722 device.
 
int lt8722_get_enable_req (struct lt8722_dev *dev, bool *value)
 Get ENABLE_REQ field in LT8722 device.
 
int lt8722_set_swen_req (struct lt8722_dev *dev, bool value)
 Set switching enable of LT8722 device.
 
int lt8722_get_swen_req (struct lt8722_dev *dev, bool *value)
 Get switching enable of LT8722 device.
 
int lt8722_set_sw_frq_set (struct lt8722_dev *dev, enum lt8722_sw_frq_set value)
 Set switching frequency of LT8722 device.
 
int lt8722_get_sw_frq_set (struct lt8722_dev *dev, enum lt8722_sw_frq_set *value)
 Get switching frequency of LT8722 device.
 
int lt8722_set_sw_frq_adj (struct lt8722_dev *dev, enum lt8722_sw_frq_adj value)
 Set switching frequency adjustment of LT8722 device.
 
int lt8722_get_sw_frq_adj (struct lt8722_dev *dev, enum lt8722_sw_frq_adj *value)
 Get switching frequency adjustment of LT8722 device.
 
int lt8722_set_vcc_vreg (struct lt8722_dev *dev, enum lt8722_vcc_vreg value)
 Set internal circuitry voltage source of LT8722 device.
 
int lt8722_get_vcc_vreg (struct lt8722_dev *dev, enum lt8722_vcc_vreg *value)
 Get internal circuitry voltage source of LT8722 device.
 
int lt8722_set_sw_vc_int (struct lt8722_dev *dev, enum lt8722_sw_vc_int value)
 Set initial peak inductor current of LT8722 device.
 
int lt8722_get_sw_vc_int (struct lt8722_dev *dev, enum lt8722_sw_vc_int *value)
 Get initial peak inductor current of LT8722 device.
 
int lt8722_set_pwr_lim (struct lt8722_dev *dev, enum lt8722_pwr_lim value)
 Set LDR power dissipation limit of LT8722 device.
 
int lt8722_get_pwr_lim (struct lt8722_dev *dev, enum lt8722_pwr_lim *value)
 Get LDR power dissipation limit of LT8722 device.
 
int lt8722_set_sys_dc (struct lt8722_dev *dev, enum lt8722_sys_dc value)
 Set PWM duty cycle of LT8722 device.
 
int lt8722_get_sys_dc (struct lt8722_dev *dev, enum lt8722_sys_dc *value)
 Get PWM duty cycle of LT8722 device.
 
int lt8722_set_spis_dac_ilimn (struct lt8722_dev *dev, uint16_t value)
 Set negative output current limit of LT8722 device.
 
int lt8722_get_spis_dac_ilimn (struct lt8722_dev *dev, uint16_t *value)
 Get negative output current limit of LT8722 device.
 
int lt8722_set_spis_dac_ilimp (struct lt8722_dev *dev, uint16_t value)
 Set positive output current limit of LT8722 device.
 
int lt8722_get_spis_dac_ilimp (struct lt8722_dev *dev, uint16_t *value)
 Get positive output current limit of LT8722 device.
 
int lt8722_set_dac (struct lt8722_dev *dev, uint32_t value)
 Set DAC code of LT8722 device.
 
int lt8722_get_dac (struct lt8722_dev *dev, uint32_t *value)
 Get DAC code of LT8722 device.
 
int lt8722_set_spis_ov_clamp (struct lt8722_dev *dev, uint8_t value)
 Set positive output voltage limit of LT8722 device.
 
int lt8722_get_spis_ov_clamp (struct lt8722_dev *dev, uint8_t *value)
 Get positive output voltage limit of LT8722 device.
 
int lt8722_set_spis_uv_clamp (struct lt8722_dev *dev, uint8_t value)
 Set negative output voltage limit of LT8722 device.
 
int lt8722_get_spis_uv_clamp (struct lt8722_dev *dev, uint8_t *value)
 Get negative output voltage limit of LT8722 device.
 
int lt8722_set_aout_en (struct lt8722_dev *dev, bool value)
 Set analog output buffer status of LT8722 device.
 
int lt8722_get_aout_en (struct lt8722_dev *dev, bool *value)
 Get analog output buffer status of LT8722 device.
 
int lt8722_set_amux (struct lt8722_dev *dev, enum lt8722_amux value, uint8_t test)
 Set analot output signal source of LT8722 device.
 
int lt8722_get_amux (struct lt8722_dev *dev, enum lt8722_amux *value, uint8_t *test)
 Get analot output signal source of LT8722 device.
 
int lt8722_set_output_voltage (struct lt8722_dev *dev, int64_t value)
 Set output volatge of LT8722 device.
 
int lt8722_get_output_voltage (struct lt8722_dev *dev, int64_t *value)
 Get output volatge of LT8722 device.
 
int lt8722_shutdown (struct lt8722_dev *dev)
 Reset the LT8722 device.
 
int lt8722_reset (struct lt8722_dev *dev)
 Shutdown the LT8722 device.
 
int lt8722_set_swen_pin (struct lt8722_dev *dev, uint8_t value)
 Set SWEN pin of LT8722 device.
 
int lt8722_get_swen_pin (struct lt8722_dev *dev, uint8_t *value)
 Get SWEN pin of LT8722 device.
 
int lt8722_set_en_pin (struct lt8722_dev *dev, uint8_t value)
 Set EN pin of LT8722 device.
 
int lt8722_get_en_pin (struct lt8722_dev *dev, uint8_t *value)
 Get EN pin of LT8722 device.
 
int lt8722_init (struct lt8722_dev **device, struct lt8722_init_param *init_param)
 Initialize the LT8722 device.
 
int lt8722_remove (struct lt8722_dev *dev)
 Free the resources allocated by the lt8722_init()
 

Variables

struct lt8722_reg lt8722_regs [LT8722_NUM_REGISTERS]
 

Detailed Description

Header file for the LT8722 Driver.

Author
Ramon Cristopher Calam (ramon.nosp@m.cris.nosp@m.tophe.nosp@m.r.ca.nosp@m.lam@a.nosp@m.nalo.nosp@m.g.com)

Copyright 2024(c) Analog Devices, Inc.

SPDX-License-Identifier: BSD-3-Clause

Macro Definition Documentation

◆ LT8722_ACK_ACKNOWLEDGE

#define LT8722_ACK_ACKNOWLEDGE   0xA5

◆ LT8722_ACK_NON_ACKNOWLEDGE

#define LT8722_ACK_NON_ACKNOWLEDGE   0xC3

◆ LT8722_ACK_STUCK_AT_0

#define LT8722_ACK_STUCK_AT_0   0x00

◆ LT8722_ACK_STUCK_AT_1

#define LT8722_ACK_STUCK_AT_1   0xFF

◆ LT8722_ACK_UNSUPPORTED_ADDRESS

#define LT8722_ACK_UNSUPPORTED_ADDRESS   0x0F

◆ LT8722_AMUX_MASK

#define LT8722_AMUX_MASK   NO_OS_GENMASK(3, 0)

◆ LT8722_AMUX_TEST_MASK

#define LT8722_AMUX_TEST_MASK   NO_OS_GENMASK(5, 4)

◆ LT8722_AOUT_EN_MASK

#define LT8722_AOUT_EN_MASK   NO_OS_BIT(6)

◆ LT8722_CP_UVLO_MASK

#define LT8722_CP_UVLO_MASK   NO_OS_BIT(9)

◆ LT8722_CRC_POLYNOMIAL

#define LT8722_CRC_POLYNOMIAL   0x07

◆ LT8722_DAC_OFFSET

#define LT8722_DAC_OFFSET   1250000000LL

◆ LT8722_DAC_RESOLUTION

#define LT8722_DAC_RESOLUTION   25

◆ LT8722_DAC_VREF

#define LT8722_DAC_VREF   2500000000LL

◆ LT8722_DATA_READ_COMMAND

#define LT8722_DATA_READ_COMMAND   0xF4

◆ LT8722_DATA_READ_COMMAND_SIZE

#define LT8722_DATA_READ_COMMAND_SIZE   8

◆ LT8722_DATA_WRITE_COMMAND

#define LT8722_DATA_WRITE_COMMAND   0xF2

◆ LT8722_DATA_WRITE_COMMAND_SIZE

#define LT8722_DATA_WRITE_COMMAND_SIZE   8

◆ LT8722_ENABLE_REQ_MASK

#define LT8722_ENABLE_REQ_MASK   NO_OS_BIT(0)

◆ LT8722_FAULTS_MASK

#define LT8722_FAULTS_MASK   NO_OS_GENMASK(10, 5)

◆ LT8722_MAX_REGISTER_SIZE

#define LT8722_MAX_REGISTER_SIZE   4

◆ LT8722_MIN_OT_MASK

#define LT8722_MIN_OT_MASK   NO_OS_BIT(3)

◆ LT8722_NUM_REGISTERS

#define LT8722_NUM_REGISTERS   8

◆ LT8722_OVER_CURRENT_MASK

#define LT8722_OVER_CURRENT_MASK   NO_OS_BIT(5)

◆ LT8722_POR_OCC_MASK

#define LT8722_POR_OCC_MASK   NO_OS_BIT(4)

◆ LT8722_PWR_LIM_MASK

#define LT8722_PWR_LIM_MASK   NO_OS_GENMASK(18, 15)

◆ LT8722_PWR_LIM_POS

#define LT8722_PWR_LIM_POS   15

◆ LT8722_SPI_RST_MASK

#define LT8722_SPI_RST_MASK   NO_OS_BIT(14)

◆ LT8722_SPI_RST_RESET

#define LT8722_SPI_RST_RESET   0b1

◆ LT8722_SPIS_AMUX

#define LT8722_SPIS_AMUX   0x07

◆ LT8722_SPIS_AMUX_DEFAULT_VALUE

#define LT8722_SPIS_AMUX_DEFAULT_VALUE   0x00

◆ LT8722_SPIS_AMUX_MASK

#define LT8722_SPIS_AMUX_MASK   NO_OS_GENMASK(6, 0)

◆ LT8722_SPIS_AMUX_SIZE

#define LT8722_SPIS_AMUX_SIZE   7

◆ LT8722_SPIS_COMMAND

#define LT8722_SPIS_COMMAND   0x00

◆ LT8722_SPIS_COMMAND_DEFAULT_VALUE

#define LT8722_SPIS_COMMAND_DEFAULT_VALUE   0x08A214

◆ LT8722_SPIS_COMMAND_MASK

#define LT8722_SPIS_COMMAND_MASK   NO_OS_GENMASK(21, 0)

◆ LT8722_SPIS_COMMAND_SIZE

#define LT8722_SPIS_COMMAND_SIZE   22

◆ LT8722_SPIS_DAC

#define LT8722_SPIS_DAC   0x04

◆ LT8722_SPIS_DAC_DEFAULT_VALUE

#define LT8722_SPIS_DAC_DEFAULT_VALUE   0xFF000000

◆ LT8722_SPIS_DAC_ILIMN

#define LT8722_SPIS_DAC_ILIMN   0x02

◆ LT8722_SPIS_DAC_ILIMN_DEFAULT_VALUE

#define LT8722_SPIS_DAC_ILIMN_DEFAULT_VALUE   0x1FF

◆ LT8722_SPIS_DAC_ILIMN_MASK [1/2]

#define LT8722_SPIS_DAC_ILIMN_MASK   NO_OS_GENMASK(8, 0)

◆ LT8722_SPIS_DAC_ILIMN_MASK [2/2]

#define LT8722_SPIS_DAC_ILIMN_MASK   NO_OS_GENMASK(8, 0)

◆ LT8722_SPIS_DAC_ILIMN_MAX

#define LT8722_SPIS_DAC_ILIMN_MAX   0x1FF

◆ LT8722_SPIS_DAC_ILIMN_MIN

#define LT8722_SPIS_DAC_ILIMN_MIN   0x030

◆ LT8722_SPIS_DAC_ILIMN_SIZE

#define LT8722_SPIS_DAC_ILIMN_SIZE   9

◆ LT8722_SPIS_DAC_ILIMP

#define LT8722_SPIS_DAC_ILIMP   0x03

◆ LT8722_SPIS_DAC_ILIMP_DEFAULT_VALUE

#define LT8722_SPIS_DAC_ILIMP_DEFAULT_VALUE   0x000

◆ LT8722_SPIS_DAC_ILIMP_MASK [1/2]

#define LT8722_SPIS_DAC_ILIMP_MASK   NO_OS_GENMASK(8, 0)

◆ LT8722_SPIS_DAC_ILIMP_MASK [2/2]

#define LT8722_SPIS_DAC_ILIMP_MASK   NO_OS_GENMASK(8, 0)

◆ LT8722_SPIS_DAC_ILIMP_MAX

#define LT8722_SPIS_DAC_ILIMP_MAX   0x1CE

◆ LT8722_SPIS_DAC_ILIMP_MIN

#define LT8722_SPIS_DAC_ILIMP_MIN   0x000

◆ LT8722_SPIS_DAC_ILIMP_SIZE

#define LT8722_SPIS_DAC_ILIMP_SIZE   9

◆ LT8722_SPIS_DAC_MASK [1/2]

#define LT8722_SPIS_DAC_MASK   NO_OS_GENMASK(31, 0)

◆ LT8722_SPIS_DAC_MASK [2/2]

#define LT8722_SPIS_DAC_MASK   NO_OS_GENMASK(31, 0)

◆ LT8722_SPIS_DAC_SIZE

#define LT8722_SPIS_DAC_SIZE   32

◆ LT8722_SPIS_OV_CLAMP

#define LT8722_SPIS_OV_CLAMP   0x05

◆ LT8722_SPIS_OV_CLAMP_DEFAULT_VALUE

#define LT8722_SPIS_OV_CLAMP_DEFAULT_VALUE   0xF

◆ LT8722_SPIS_OV_CLAMP_MASK [1/2]

#define LT8722_SPIS_OV_CLAMP_MASK   NO_OS_GENMASK(3, 0)

◆ LT8722_SPIS_OV_CLAMP_MASK [2/2]

#define LT8722_SPIS_OV_CLAMP_MASK   NO_OS_GENMASK(3, 0)

◆ LT8722_SPIS_OV_CLAMP_SIZE

#define LT8722_SPIS_OV_CLAMP_SIZE   4

◆ LT8722_SPIS_STATUS

#define LT8722_SPIS_STATUS   0x01

◆ LT8722_SPIS_STATUS_DEFAULT_VALUE

#define LT8722_SPIS_STATUS_DEFAULT_VALUE   0x0

◆ LT8722_SPIS_STATUS_MASK

#define LT8722_SPIS_STATUS_MASK   NO_OS_GENMASK(10, 0)

◆ LT8722_SPIS_STATUS_SIZE

#define LT8722_SPIS_STATUS_SIZE   11

◆ LT8722_SPIS_UV_CLAMP

#define LT8722_SPIS_UV_CLAMP   0x06

◆ LT8722_SPIS_UV_CLAMP_DEFAULT_VALUE

#define LT8722_SPIS_UV_CLAMP_DEFAULT_VALUE   0x0

◆ LT8722_SPIS_UV_CLAMP_MASK [1/2]

#define LT8722_SPIS_UV_CLAMP_MASK   NO_OS_GENMASK(3, 0)

◆ LT8722_SPIS_UV_CLAMP_MASK [2/2]

#define LT8722_SPIS_UV_CLAMP_MASK   NO_OS_GENMASK(3, 0)

◆ LT8722_SPIS_UV_CLAMP_SIZE

#define LT8722_SPIS_UV_CLAMP_SIZE   4

◆ LT8722_SRVO_ILIM_MASK

#define LT8722_SRVO_ILIM_MASK   NO_OS_BIT(1)

◆ LT8722_SRVO_PLIM_MASK

#define LT8722_SRVO_PLIM_MASK   NO_OS_BIT(2)

◆ LT8722_STATUS_ACQUISITION_COMMAND

#define LT8722_STATUS_ACQUISITION_COMMAND   0xF0

◆ LT8722_STATUS_ACQUISITION_COMMAND_SIZE

#define LT8722_STATUS_ACQUISITION_COMMAND_SIZE   4

◆ LT8722_SW_FRQ_ADJ_MASK

#define LT8722_SW_FRQ_ADJ_MASK   NO_OS_GENMASK(6, 5)

◆ LT8722_SW_FRQ_SET_MASK

#define LT8722_SW_FRQ_SET_MASK   NO_OS_GENMASK(4, 2)

◆ LT8722_SW_VC_INT_MASK

#define LT8722_SW_VC_INT_MASK   NO_OS_GENMASK(13, 11)

◆ LT8722_SWEN_MASK

#define LT8722_SWEN_MASK   NO_OS_BIT(0)

◆ LT8722_SWEN_REQ_MASK

#define LT8722_SWEN_REQ_MASK   NO_OS_BIT(1)

◆ LT8722_SYS_DC_MASK

#define LT8722_SYS_DC_MASK   NO_OS_GENMASK(8, 7)

◆ LT8722_TSD_MASK

#define LT8722_TSD_MASK   NO_OS_BIT(6)

◆ LT8722_V2P5_UVLO_MASK

#define LT8722_V2P5_UVLO_MASK   NO_OS_BIT(10)

◆ LT8722_VCC_UVLO_MASK

#define LT8722_VCC_UVLO_MASK   NO_OS_BIT(7)

◆ LT8722_VCC_VREG_MASK

#define LT8722_VCC_VREG_MASK   NO_OS_BIT(9)

◆ LT8722_VDDIO_UVLO_MASK

#define LT8722_VDDIO_UVLO_MASK   NO_OS_BIT(8)

◆ LT8722_VOLTAGE_SCALE

#define LT8722_VOLTAGE_SCALE   NANO

Enumeration Type Documentation

◆ lt8722_amux

Analog multiplexer control bits.

Enumerator
LT8722_AMUX_VILIMP 
LT8722_AMUX_VILIMN 
LT8722_AMUX_VDAC 
LT8722_AMUX_VOUT 
LT8722_AMUX_IOUT 
LT8722_AMUX_V2P5 
LT8722_AMUX_V1P25 
LT8722_AMUX_V1P65 
LT8722_AMUX_VTEMP 
LT8722_AMUX_VIN 
LT8722_AMUX_VCC 
LT8722_AMUX_VDDIO 
LT8722_AMUX_VSFB 
LT8722_AMUX_VSFB_2 
LT8722_AMUX_VSFB_3 
LT8722_AMUX_VSFB_4 

◆ lt8722_aout_en

Analog output buffer enable control bits.

Enumerator
LT8722_AOUT_EN_DISABLED 

Disable

LT8722_AOUT_EN_ENABLED 

Enable

◆ lt8722_enable_req

VCC LDO enable bit and linear power stage enable request bit.

Enumerator
LT8722_ENABLE_REQ_DISABLED 

Disable bit

LT8722_ENABLE_REQ_ENABLED 

Enable bit

◆ lt8722_pwr_lim

Linear power stage MOSFET power limit control bits.

Enumerator
LT8722_PWR_LIM_2W 

2W

LT8722_PWR_LIM_NO_LIMIT 

No limit

LT8722_PWR_LIM_3W 

3W

LT8722_PWR_LIM_3_5W 

3.5W

◆ lt8722_sw_frq_adj

PWM switch frequency adjustment bits.

Enumerator
LT8722_SW_FRQ_ADJ_0_PERCENT 

0%

LT8722_SW_FRQ_ADJ_POSITIVE_15_PERCENT 

+15%

LT8722_SW_FRQ_ADJ_NEGATIVE_15_PERCENT 

-15%

LT8722_SW_FRQ_ADJ_0_PERCENT_2 

0%

◆ lt8722_sw_frq_set

PWM switch frequency control bits.

Enumerator
LT8722_SW_FRQ_SET_0_5MHZ 

0.5 MHz

LT8722_SW_FRQ_SET_1MHZ 

1 MHz

LT8722_SW_FRQ_SET_1_5MHZ 

1.5 MHz

LT8722_SW_FRQ_SET_2MHZ 

2 MHz

LT8722_SW_FRQ_SET_2_5MHZ 

2.5 MHz

LT8722_SW_FRQ_SET_3MHZ 

3 MHz

LT8722_SW_FRQ_SET_3MHZ_2 

3 MHz

LT8722_SW_FRQ_SET_3MHZ_3 

3 MHz

◆ lt8722_sw_vc_int

Typical peak inductor current after BST-SW refresh period control bits.

Enumerator
LT8722_SW_VC_INT_0_252A 

0.252A

LT8722_SW_VC_INT_0_594A 

0.594A

LT8722_SW_VC_INT_0_936A 

0.936A

LT8722_SW_VC_INT_1_278A 

1.278A

LT8722_SW_VC_INT_1_620A 

1.620A

LT8722_SW_VC_INT_1_962A 

1.962A

LT8722_SW_VC_INT_2_304A 

2.304A

LT8722_SW_VC_INT_2_646A 

2.646A

◆ lt8722_swen_req

PWM switch enable request bit.

Enumerator
LT8722_SWEN_REQ_DISABLED 

Disable bit

LT8722_SWEN_REQ_ENABLED 

Enable bit

◆ lt8722_sys_dc

PWM duty cycle control bits.

Enumerator
LT8722_SYS_DC_20_80_DUTY_CYCLE 

20% - 80%

LT8722_SYS_DC_15_85_DUTY_CYCLE 

15% - 85%

LT8722_SYS_DC_10_90_DUTY_CYCLE 

10% - 90%

◆ lt8722_vcc_vreg

VCC LDO regulation control bits.

Enumerator
LT8722_VCC_VREG_3_1V 

3.1V

LT8722_VCC_VREG_3_4V 

3.4V

Function Documentation

◆ lt8722_clear_faults()

int lt8722_clear_faults ( struct lt8722_dev * dev)

Clear LT8722 device faults.

Clear LT8722 faults

Parameters
dev- LT8722 device descriptor
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_dac_to_voltage()

int64_t lt8722_dac_to_voltage ( int32_t dac)

Convert DAC code to nanovolts.

Convert DAC code to voltage

Parameters
dac- DAC code.
Returns
Voltage value in nanovolts.

◆ lt8722_get_amux()

int lt8722_get_amux ( struct lt8722_dev * dev,
enum lt8722_amux * value,
uint8_t * test )

Get analot output signal source of LT8722 device.

Get analog output signal source

Parameters
dev- LT8722 device descriptor
value- Analog output signal source value.
test- AMUX_TEST value.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_aout_en()

int lt8722_get_aout_en ( struct lt8722_dev * dev,
bool * value )

Get analog output buffer status of LT8722 device.

Get analog output buffer status

Parameters
dev- LT8722 device descriptor
value- Analog output buffer status value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_dac()

int lt8722_get_dac ( struct lt8722_dev * dev,
uint32_t * value )

Get DAC code of LT8722 device.

Get output voltage

Parameters
dev- LT8722 device descriptor
value- DAC value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_en_pin()

int lt8722_get_en_pin ( struct lt8722_dev * dev,
uint8_t * value )

Get EN pin of LT8722 device.

Get EN pin

Parameters
dev- LT8722 device descriptor
value- EN pin value.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_enable_req()

int lt8722_get_enable_req ( struct lt8722_dev * dev,
bool * value )

Get ENABLE_REQ field in LT8722 device.

Get ENABLE_REQ

Parameters
dev- LT8722 device descriptor
value- Enable if true, disabled otherwise
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_output_voltage()

int lt8722_get_output_voltage ( struct lt8722_dev * dev,
int64_t * value )

Get output volatge of LT8722 device.

Get output voltage

Parameters
dev- LT8722 device descriptor
value- Output voltage value in nanovolts.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_pwr_lim()

int lt8722_get_pwr_lim ( struct lt8722_dev * dev,
enum lt8722_pwr_lim * value )

Get LDR power dissipation limit of LT8722 device.

Get LDR power dissipation limit

Parameters
dev- LT8722 device descriptor
value- LDR power dissipation limit value
Returns
0 in case of success, negative error code otherwise

◆ lt8722_get_spis_dac_ilimn()

int lt8722_get_spis_dac_ilimn ( struct lt8722_dev * dev,
uint16_t * value )

Get negative output current limit of LT8722 device.

Get positive output current limit

Parameters
dev- LT8722 device descriptor
value- Negative output current limit value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_spis_dac_ilimp()

int lt8722_get_spis_dac_ilimp ( struct lt8722_dev * dev,
uint16_t * value )

Get positive output current limit of LT8722 device.

Get positive output current limit

Parameters
dev- LT8722 device descriptor
value- Positive output current limit value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_spis_ov_clamp()

int lt8722_get_spis_ov_clamp ( struct lt8722_dev * dev,
uint8_t * value )

Get positive output voltage limit of LT8722 device.

Get positive output voltage limit

Parameters
dev- LT8722 device descriptor
value- Positive output voltage limit value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_spis_uv_clamp()

int lt8722_get_spis_uv_clamp ( struct lt8722_dev * dev,
uint8_t * value )

Get negative output voltage limit of LT8722 device.

Get negative output voltage limit

Parameters
dev- LT8722 device descriptor
value- Negative output voltage limit value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_status()

int lt8722_get_status ( struct lt8722_dev * dev,
uint16_t * status )

Get LT8722 device status.

Get LT8722 status

Parameters
dev- LT8722 device descriptor
status- Status value to be returned.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_sw_frq_adj()

int lt8722_get_sw_frq_adj ( struct lt8722_dev * dev,
enum lt8722_sw_frq_adj * value )

Get switching frequency adjustment of LT8722 device.

Get switching frequency adjustment

Parameters
dev- LT8722 device descriptor
value- Switching frequency value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_sw_frq_set()

int lt8722_get_sw_frq_set ( struct lt8722_dev * dev,
enum lt8722_sw_frq_set * value )

Get switching frequency of LT8722 device.

Get switching frequency

Parameters
dev- LT8722 device descriptor
value- Switching frequency value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_sw_vc_int()

int lt8722_get_sw_vc_int ( struct lt8722_dev * dev,
enum lt8722_sw_vc_int * value )

Get initial peak inductor current of LT8722 device.

Get initial peak inductor current

Parameters
dev- LT8722 device descriptor
value- Peak inductor current value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_swen_pin()

int lt8722_get_swen_pin ( struct lt8722_dev * dev,
uint8_t * value )

Get SWEN pin of LT8722 device.

Get SWEN pin

Parameters
dev- LT8722 device descriptor
value- SWEN pin value.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_swen_req()

int lt8722_get_swen_req ( struct lt8722_dev * dev,
bool * value )

Get switching enable of LT8722 device.

Get SWEN_REQ

Parameters
dev- LT8722 device descriptor
value- Enable if true, disabled otherwise
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_sys_dc()

int lt8722_get_sys_dc ( struct lt8722_dev * dev,
enum lt8722_sys_dc * value )

Get PWM duty cycle of LT8722 device.

Get PWM duty cycle

Parameters
dev- LT8722 device descriptor
value- PWM duty cycle value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_get_vcc_vreg()

int lt8722_get_vcc_vreg ( struct lt8722_dev * dev,
enum lt8722_vcc_vreg * value )

Get internal circuitry voltage source of LT8722 device.

Get internal circuitry voltage source

Parameters
dev- LT8722 device descriptor
value- VCC voltage regulator output
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_init()

int lt8722_init ( struct lt8722_dev ** device,
struct lt8722_init_param * init_param )

Initialize the LT8722 device.

Initialize the LT8722 device descriptor.

Parameters
device- LT8722 device descriptor
init_param- Initialization parameter containing information about the LT8722 device to be initialized.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_reg_read()

int lt8722_reg_read ( struct lt8722_dev * dev,
uint8_t address,
uint32_t * data )

Read data from LT8722 device.

Read data from LT8722 device.

Parameters
dev- LT8722 device descriptor
address- Register address.
data- Received data.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_reg_write()

int lt8722_reg_write ( struct lt8722_dev * dev,
uint8_t address,
uint32_t data )

Write data to LT8722 device.

Write data to LT8722 device.

Parameters
dev- LT8722 device descriptor
address- Register address.
data- Data to be written.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_reg_write_mask()

int lt8722_reg_write_mask ( struct lt8722_dev * dev,
uint8_t address,
uint32_t mask,
uint32_t data )

Write to LT8722 device register with mask.

Write data to LT8722 device with mask.

Parameters
dev- LT8722 device descriptor
address- Register address.
mask- Mask to be applied.
data- Data to be written.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_remove()

int lt8722_remove ( struct lt8722_dev * dev)

Free the resources allocated by the lt8722_init()

Remove resources allocated by the init function.

Parameters
dev- LT8722 device descriptor
Returns
- 0 in case of succes, negative error code otherwise

◆ lt8722_reset()

int lt8722_reset ( struct lt8722_dev * dev)

Shutdown the LT8722 device.

Reset device

Parameters
dev- LT8722 device descriptor
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_amux()

int lt8722_set_amux ( struct lt8722_dev * dev,
enum lt8722_amux value,
uint8_t test )

Set analot output signal source of LT8722 device.

Set analog output signal source

Parameters
dev- LT8722 device descriptor
value- Analog output signal source value
test- AMUX_TEST value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_aout_en()

int lt8722_set_aout_en ( struct lt8722_dev * dev,
bool value )

Set analog output buffer status of LT8722 device.

Set analog output buffer status

Parameters
dev- LT8722 device descriptor
value- Analog output buffer status value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_dac()

int lt8722_set_dac ( struct lt8722_dev * dev,
uint32_t value )

Set DAC code of LT8722 device.

Set output voltage

Parameters
dev- LT8722 device descriptor
value- DAC value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_en_pin()

int lt8722_set_en_pin ( struct lt8722_dev * dev,
uint8_t value )

Set EN pin of LT8722 device.

Set EN pin

Parameters
dev- LT8722 device descriptor
value- EN pin value.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_enable_req()

int lt8722_set_enable_req ( struct lt8722_dev * dev,
bool value )

Set ENABLE_REQ field in LT8722 device.

Set ENABLE_REQ

Parameters
dev- LT8722 device descriptor
value- Enable if true, disabled otherwise
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_output_voltage()

int lt8722_set_output_voltage ( struct lt8722_dev * dev,
int64_t value )

Set output volatge of LT8722 device.

Set output voltage

Parameters
dev- LT8722 device descriptor
value- Output voltage value in nanovolts.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_pwr_lim()

int lt8722_set_pwr_lim ( struct lt8722_dev * dev,
enum lt8722_pwr_lim value )

Set LDR power dissipation limit of LT8722 device.

Set LDR power dissipation limit

Parameters
dev- LT8722 device descriptor
value- LDR power dissipation limit value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_spis_dac_ilimn()

int lt8722_set_spis_dac_ilimn ( struct lt8722_dev * dev,
uint16_t value )

Set negative output current limit of LT8722 device.

Set negative output current limit

Parameters
dev- LT8722 device descriptor
value- Negative output current limit value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_spis_dac_ilimp()

int lt8722_set_spis_dac_ilimp ( struct lt8722_dev * dev,
uint16_t value )

Set positive output current limit of LT8722 device.

Set positive output current limit

Parameters
dev- LT8722 device descriptor
value- Positive output current limit value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_spis_ov_clamp()

int lt8722_set_spis_ov_clamp ( struct lt8722_dev * dev,
uint8_t value )

Set positive output voltage limit of LT8722 device.

Set positive output voltage limit

Parameters
dev- LT8722 device descriptor
value- Positive output voltage limit value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_spis_uv_clamp()

int lt8722_set_spis_uv_clamp ( struct lt8722_dev * dev,
uint8_t value )

Set negative output voltage limit of LT8722 device.

Set negative output voltage limit

Parameters
dev- LT8722 device descriptor
value- Negative output voltage limit value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_sw_frq_adj()

int lt8722_set_sw_frq_adj ( struct lt8722_dev * dev,
enum lt8722_sw_frq_adj value )

Set switching frequency adjustment of LT8722 device.

Set switching frequency adjustment

Parameters
dev- LT8722 device descriptor
value- Switching frequency adjustment value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_sw_frq_set()

int lt8722_set_sw_frq_set ( struct lt8722_dev * dev,
enum lt8722_sw_frq_set value )

Set switching frequency of LT8722 device.

Set switching frequency

Parameters
dev- LT8722 device descriptor
value- Switching frequency value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_sw_vc_int()

int lt8722_set_sw_vc_int ( struct lt8722_dev * dev,
enum lt8722_sw_vc_int value )

Set initial peak inductor current of LT8722 device.

Set initial peak inductor current

Parameters
dev- LT8722 device descriptor
value- Peak inductor current value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_swen_pin()

int lt8722_set_swen_pin ( struct lt8722_dev * dev,
uint8_t value )

Set SWEN pin of LT8722 device.

Set SWEN pin

Parameters
dev- LT8722 device descriptor
value- SWEN pin value.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_swen_req()

int lt8722_set_swen_req ( struct lt8722_dev * dev,
bool value )

Set switching enable of LT8722 device.

Set SWEN_REQ

Parameters
dev- LT8722 device descriptor
value- Enable if true, disabled otherwise
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_sys_dc()

int lt8722_set_sys_dc ( struct lt8722_dev * dev,
enum lt8722_sys_dc value )

Set PWM duty cycle of LT8722 device.

Set PWM duty cycle

Parameters
dev- LT8722 device descriptor
value- PWM duty cycle value
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_set_vcc_vreg()

int lt8722_set_vcc_vreg ( struct lt8722_dev * dev,
enum lt8722_vcc_vreg value )

Set internal circuitry voltage source of LT8722 device.

Set internal circuitry voltage source

Parameters
dev- LT8722 device descriptor
value- VCC voltage regulator output
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_shutdown()

int lt8722_shutdown ( struct lt8722_dev * dev)

Reset the LT8722 device.

Shutdown device

Parameters
dev- LT8722 device descriptor
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_transaction()

int lt8722_transaction ( struct lt8722_dev * dev,
struct lt8722_packet * packet )

LT8722 device SPI transaction.

LT8722 device SPI transaction

Parameters
dev- LT8722 device descriptor
packet- LT8722 packet.
Returns
0 in case of succes, negative error code otherwise

◆ lt8722_voltage_to_dac()

int32_t lt8722_voltage_to_dac ( int64_t voltage)

Convert voltage to DAC code.

Convert voltage to DAC code

Parameters
voltage- Voltage value in nanovolts.
Returns
DAC code.

Variable Documentation

◆ lt8722_regs

struct lt8722_reg lt8722_regs[LT8722_NUM_REGISTERS]
extern