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4.0.0-rc3
A Scalable Open Source RTOS
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ina237.h
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/*
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* Copyright (c) 2021 Grinn
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_INA237_H_
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#define ZEPHYR_INCLUDE_DT_BINDINGS_INA237_H_
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#include <
zephyr/dt-bindings/dt-util.h
>
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/* Operating Mode */
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#define INA237_CFG_HIGH_PRECISION BIT(4)
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#define INA237_OPER_MODE_SHUTDOWN 0x00
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#define INA237_OPER_MODE_BUS_VOLTAGE_TRIG 0x01
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#define INA237_OPER_MODE_SHUNT_VOLTAGE_TRIG 0x02
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#define INA237_OPER_MODE_SHUNT_BUS_VOLTAGE_TRIG 0x03
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#define INA237_OPER_MODE_TEMP_TRIG 0x04
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#define INA237_OPER_MODE_TEMP_BUS_VOLTAGE_TRIG 0x05
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#define INA237_OPER_MODE_TEMP_SHUNT_VOLTAGE_TRIG 0x06
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#define INA237_OPER_MODE_BUS_SHUNT_VOLTAGE_TEMP_TRIG 0x07
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#define INA237_OPER_MODE_BUS_VOLTAGE_CONT 0x09
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#define INA237_OPER_MODE_SHUNT_VOLTAGE_CONT 0x0A
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#define INA237_OPER_MODE_SHUNT_BUS_VOLTAGE_CONT 0x0B
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#define INA237_OPER_MODE_TEMP_CONT 0x0C
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#define INA237_OPER_MODE_BUS_VOLTAGE_TEMP_CONT 0x0D
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#define INA237_OPER_MODE_TEMP_SHUNT_VOLTAGE_CONT 0x0E
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#define INA237_OPER_MODE_BUS_SHUNT_VOLTAGE_TEMP_CONT 0x0F
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/* Conversion time for bus, shunt and temp in micro-seconds */
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#define INA237_CONV_TIME_50 0x00
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#define INA237_CONV_TIME_84 0x01
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#define INA237_CONV_TIME_150 0x02
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#define INA237_CONV_TIME_280 0x03
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#define INA237_CONV_TIME_540 0x04
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#define INA237_CONV_TIME_1052 0x05
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#define INA237_CONV_TIME_2074 0x06
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#define INA237_CONV_TIME_4120 0x07
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/* Averaging Mode */
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#define INA237_AVG_MODE_1 0x00
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#define INA237_AVG_MODE_4 0x01
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#define INA237_AVG_MODE_16 0x02
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#define INA237_AVG_MODE_64 0x03
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#define INA237_AVG_MODE_128 0x04
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#define INA237_AVG_MODE_256 0x05
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#define INA237_AVG_MODE_512 0x06
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#define INA237_AVG_MODE_1024 0x07
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/* Reset Mode */
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#define INA237_RST_NORMAL_OPERATION 0x00
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#define INA237_RST_SYSTEM_RESET 0x01
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/* Delay for initial ADC conversion in steps of 2 ms */
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#define INA237_INIT_ADC_DELAY_0_S 0x00
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#define INA237_INIT_ADC_DELAY_2_MS 0x01
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#define INA237_INIT_ADC_DELAY_510_MS 0xFF
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/* Shunt full scale range selection across IN+ and IN–. */
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#define INA237_ADC_RANGE_163_84 0x00
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#define INA237_ADC_RANGE_40_96 0x01
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#define INA237_CONFIG(rst_mode, \
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convdly, \
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adc_range) \
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(((rst_mode) << 15) | ((convdly) << 6) | ((adc_range) << 4))
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#define INA237_ADC_CONFIG(mode, \
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vshct, \
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vbusct, \
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vtct, \
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avg) \
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(((mode) << 12) | ((vbusct) << 9) | ((vshct) << 6) | ((vtct) << 3) | (avg))
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#endif
/* ZEPHYR_INCLUDE_DT_BINDINGS_INA237_H_ */
dt-util.h
zephyr
dt-bindings
sensor
ina237.h
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