Brody Kellish
lib for working with ltc2991s
Fork of
ltc2991_test
by 
Logan Rooper
Diff: LTC2991.h
- Revision:
- 0:1473318f27b6
- Child:
- 1:4e4194db7cd6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/LTC2991.h Wed Nov 16 15:54:08 2016 +0000
@@ -0,0 +1,356 @@
+/*!
+LTC2991: 14-bit ADC octal I2C voltage, current, and temperature monitor.
+
+@verbatim
+
+The LTC2991 is used to monitor system temperatures, voltages and currents.
+Through the I2C serial interface, the eight monitors can individually measure
+supply voltages and can be paired for differential measurements of current sense
+resistors or temperature sensing transistors. Additional measurements include
+internal temperature and internal VCC. The internal 10ppm reference minimizes
+the number of supporting components and area required. Selectable address and
+configurable functionality give the LTC2991 flexibility to be incorporated in
+various systems needing temperature, voltage or current data. The LTC2991 fits
+well in systems needing submillivolt voltage resolution, 1% current measurement
+and 1 degree Celsius temperature accuracy or any combination of the three.
+
+I2C DATA FORMAT (MSB FIRST);
+
+Data Out:
+Byte #1 Byte #2 Byte #3
+
+START SA6 SA5 SA4 SA3 SA2 SA1 SA0 W SACK X X X X C3 C2 C1 C0 SACK D7 D6 D5 D4 D3 D2 D1 D0 SACK STOP
+
+Data In:
+Byte #1 Byte #2 Byte #3
+
+START SA6 SA5 SA4 SA3 SA2 SA1 SA0 W SACK X X X X C3 C2 C1 C0 SACK REPEAT START SA6 SA5 SA4 SA3 SA2 SA1 SA0 R SACK
+
+Byte #4 Byte #5
+MSB LSB
+D15 D14 D13 D12 D11 D10 D9 D8 MACK D7 D6 D5 D4 D3 D2 D1 D0 MNACK STOP
+
+START : I2C Start
+REPEAT Start : I2C Repeat Start
+STOP : I2C Stop
+SACK : I2C Slave Generated Acknowledge (Active Low)
+MACK : I2C Master Generated Acknowledge (Active Low)
+MNACK : I2C Master Generated Not Acknowledge
+SAx : I2C Address
+W : I2C Write (0)
+R : I2C Read (1)
+Cx : Command Code
+Dx : Data Bits
+X : Don't care
+
+
+Example Code:
+
+Read single-ended voltage from V1.
+
+ // Enable Single-Ended Mode
+ ack |= LTC2991_register_set_clear_bits(LTC2991_I2C_ADDRESS, LTC2991_CONTROL_V1234_REG, 0x00, LTC2991_V1_V2_DIFFERENTIAL_ENABLE | LTC2991_V1_V2_TEMP_ENABLE);
+
+ // Flush one ADC reading in case it is stale. Then, take a new fresh reading.
+ ack |= LTC2991_adc_read_new_data(LTC2991_I2C_ADDRESS, LTC2991_V1_MSB_REG, &code, &data_valid, LTC2991_TIMEOUT);
+
+ voltage = LTC2991_code_to_single_ended_voltage(code, LTC2991_SINGLE_ENDED_lsb); // Converts code to voltage from single-ended lsb
+
+Read current from V3-V4.
+
+ resistor = 1; // R_sense across V3-V4 in ohms
+
+ // Enable Differential Mode
+ ack |= LTC2991_register_set_clear_bits(LTC2991_I2C_ADDRESS, LTC2991_CONTROL_V1234_REG, LTC2991_V3_V4_DIFFERENTIAL_ENABLE, LTC2991_V3_V4_TEMP_ENABLE);
+
+ // Flush one ADC reading in case it is stale. Then, take a new fresh reading.
+ ack |= LTC2991_adc_read_new_data(LTC2991_I2C_ADDRESS, LTC2991_V4_MSB_REG, &code, &data_valid, LTC2991_TIMEOUT);
+
+ voltage = LTC2991_code_to_differential_voltage(code, LTC2991_DIFFERENTIAL_lsb); // Converts code to voltage from differential lsb
+ current = voltage / resistor; // Calculates current
+
+Read temperature from diode connected to V7-V8.
+
+ // Enable temperature mode.
+ ack |= LTC2991_register_set_clear_bits(LTC2991_I2C_ADDRESS, LTC2991_CONTROL_V5678_REG, LTC2991_V7_V8_TEMP_ENABLE, 0x00);
+
+ // Flush one ADC reading in case it is stale. Then, take a new fresh reading.
+ ack |= LTC2991_adc_read_new_data(LTC2991_I2C_ADDRESS, LTC2991_V7_MSB_REG, &adc_code, &data_valid, LTC2991_TIMEOUT);
+
+ // Converts code to temperature from adc code and temperature lsb
+ temperature = LTC2991_temperature(adc_code, LTC2991_TEMPERATURE_lsb);
+
+@endverbatim
+
+http://www.linear.com/product/LTC2991
+
+http://www.linear.com/product/LTC2991#demoboards
+
+REVISION HISTORY
+$Revision: 3659 $
+$Date: 2015-07-01 10:19:20 -0700 (Wed, 01 Jul 2015) $
+
+Copyright (c) 2013, Linear Technology Corp.(LTC)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+2. 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.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS 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.
+
+The views and conclusions contained in the software and documentation are those
+of the authors and should not be interpreted as representing official policies,
+either expressed or implied, of Linear Technology Corp.
+
+The Linear Technology Linduino is not affiliated with the official Arduino team.
+However, the Linduino is only possible because of the Arduino team's commitment
+to the open-source community. Please, visit http://www.arduino.cc and
+http://store.arduino.cc , and consider a purchase that will help fund their
+ongoing work.
+
+*/
+/*! @file
+ @ingroup LTC2991
+ Library Header File for LTC2991: 14-bit Octal I2C Voltage, Current, and Temperature Monitor
+*/
+
+#ifndef LTC2991_H
+#define LTC2991_H
+
+typedef bool boolean;
+//#include <Wire.h>
+
+// Calibration Variables
+//! Typical single-ended LSB weight in volts
+const float LTC2991_SINGLE_ENDED_lsb = 3.05176E-04;
+//! Typical differential LSB weight in volts
+const float LTC2991_DIFFERENTIAL_lsb = 1.90735E-05;
+//! Typical VCC LSB weight in volts
+const float LTC2991_VCC_lsb = 3.05176E-04;
+//! Typical temperature LSB weight in degrees Celsius (and Kelvin).
+//! Used for internal temperature as well as remote diode temperature measurements.
+const float LTC2991_TEMPERATURE_lsb = 0.0625;
+//! Typical remote diode LSB weight in volts.
+//! Used to readback diode voltage when in temperature measurement mode.
+const float LTC2991_DIODE_VOLTAGE_lsb = 3.815E-05;
+
+/*! @name I2C_Addresses
+@{ */
+
+//! I2C address of the LTC2991.
+//! Configured by tying the ADR0, ADR1, and ADR2 pins high or low. See Table 1 of datasheet.
+//! Uncomment LTC2991_I2C_ADDRESS to match demo board configuration.
+// Address assignment
+// LTC2991 I2C Address // AD2 AD1 AD0
+#define LTC2991_I2C_ADDRESS 0x48 // Low Low Low
+// #define LTC2991_I2C_ADDRESS 0x49 // Low Low High
+// #define LTC2991_I2C_ADDRESS 0x4A // Low High Low
+// #define LTC2991_I2C_ADDRESS 0x4B // Low High High
+// #define LTC2991_I2C_ADDRESS 0x4C // High Low Low
+// #define LTC2991_I2C_ADDRESS 0x4D // High Low High
+// #define LTC2991_I2C_ADDRESS 0x4E // High High Low
+// #define LTC2991_I2C_ADDRESS 0x4F // High High High
+
+//! LTC2991 Global I2C Address.
+#define LTC2991_I2C_GLOBAL_ADDRESS 0x77 // Global Address
+
+/*! @} */
+/*! @name REGISTERS
+@{ */
+
+#define LTC2991_STATUS_LOW_REG 0x00 //!< Data_Valid Bits(V1 Through V8)
+#define LTC2991_STATUS_HIGH_REG 0x01 //!< Data_valid bits
+#define LTC2991_CHANNEL_ENABLE_REG 0x01 //!< Channel Enable, Vcc, T_internal Conversion Status, Trigger
+#define LTC2991_CONTROL_V1234_REG 0x06 //!< V1, V2, V3, and V4 Control Register
+#define LTC2991_CONTROL_V5678_REG 0x07 //!< V5, V6, V7, AND V8 Control Register
+#define LTC2991_CONTROL_PWM_Tinternal_REG 0x08 //!< PWM Threshold and T_internal Control Register
+#define LTC2991_PWM_THRESHOLD_MSB_REG 0x09 //!< PWM Threshold
+#define LTC2991_V1_MSB_REG 0x0A //!< V1, or T_R1 T MSB
+#define LTC2991_V1_LSB_REG 0x0B //!< V1, or T_R1 T LSB
+#define LTC2991_V2_MSB_REG 0x0C //!< V2, V1-V2, or T_R2 Voltage MSB
+#define LTC2991_V2_LSB_REG 0x0D //!< V2, V1-V2, or T_R2 Voltage LSB
+#define LTC2991_V3_MSB_REG 0x0E //!< V3, or T_R2 T MSB
+#define LTC2991_V3_LSB_REG 0x0F //!< V3, or T_R2 T LSB
+#define LTC2991_V4_MSB_REG 0x10 //!< V4, V3-V4, or T_R2 Voltage MSB
+#define LTC2991_V4_LSB_REG 0x11 //!< V4, V3-V4, or T_R2 Voltage LSB
+#define LTC2991_V5_MSB_REG 0x12 //!< V5, or T_R3 T MSB
+#define LTC2991_V5_LSB_REG 0x13 //!< V5, or T_R3 T LSB
+#define LTC2991_V6_MSB_REG 0x14 //!< V6, V5-V6, or T_R3 Voltage MSB
+#define LTC2991_V6_LSB_REG 0x15 //!< V6, V5-V6, or T_R3 Voltage LSB
+#define LTC2991_V7_MSB_REG 0x16 //!< V7, or T_R4 T MSB
+#define LTC2991_V7_LSB_REG 0x17 //!< V7, or T_R4 T LSB
+#define LTC2991_V8_MSB_REG 0x18 //!< V8, V7-V8, or T_R4 Voltage MSB
+#define LTC2991_V8_LSB_REG 0x19 //!< V8, V7-V8, or T_R4 Voltage LSB
+#define LTC2991_T_Internal_MSB_REG 0x1A //!< T_Internal MSB
+#define LTC2991_T_Internal_LSB_REG 0x1B //!< T_Internal LSB
+#define LTC2991_Vcc_MSB_REG 0x1C //!< Vcc MSB
+#define LTC2991_Vcc_LSB_REG 0x1D //!< Vcc LSB
+
+/*! @} */
+/*! @name LTC2991_CHANNEL_ENABLE_REG SETTINGS
+ Bitwise OR settings, and write to LTC2991_CHANNEL_ENABLE_REG to configure settings.
+ Bitwise AND with value read from LTC2991_CHANNEL_ENABLE_REG to determine present setting.
+@{ */
+
+#define LTC2991_V7_V8_TR4_ENABLE 0x80 //!< Enable V7-V8 measurements, including TR4 temperature
+#define LTC2991_V5_V6_TR3_ENABLE 0x40 //!< Enable V5-V6 measurements, including TR3 temperature
+#define LTC2991_V3_V4_TR2_ENABLE 0x20 //!< Enable V3-V4 measurements, including TR2 temperature
+#define LTC2991_V1_V2_TR1_ENABLE 0x10 //!< Enable V1-V2 measurements, including TR1 temperature
+#define LTC2991_VCC_TINTERNAL_ENABLE 0x08 //!< Enable Vcc internal voltage measurement
+#define LTC2991_ENABLE_ALL_CHANNELS 0xF8 //!< Use to enable all LTC2991 channels. Equivalent to bitwise OR'ing all channel enables.
+#define LTC2991_BUSY 0x04 //!< LTC2991 Busy Bit
+
+/*! @} */
+/*! @name LTC2991_CONTROL_V1234_REG SETTINGS
+ Bitwise OR settings, and write to LTC2991_CONTROL_V1234_REG to configure settings.
+ Bitwise AND with value read from LTC2991_CONTROL_V1234_REG to determine present setting.
+@{ */
+
+#define LTC2991_V3_V4_FILTER_ENABLE 0x80 //!< Enable filters on V3-V4
+#define LTC2991_V3_V4_KELVIN_ENABLE 0x40 //!< Enable V3-V4 for Kelvin. Otherwise, Celsius.
+#define LTC2991_V3_V4_TEMP_ENABLE 0x20 //!< Enable V3-V4 temperature mode.
+#define LTC2991_V3_V4_DIFFERENTIAL_ENABLE 0x10 //!< Enable V3-V4 differential mode. Otherwise, single-ended.
+#define LTC2991_V1_V2_FILTER_ENABLE 0x08 //!< Enable filters on V1-V2
+#define LTC2991_V1_V2_KELVIN_ENABLE 0x04 //!< Enable V1-V2 for Kelvin. Otherwise, Celsius.
+#define LTC2991_V1_V2_TEMP_ENABLE 0x02 //!< Enable V1-V2 temperature mode.
+#define LTC2991_V1_V2_DIFFERENTIAL_ENABLE 0x01 //!< Enable V1-V2 differential mode. Otherwise, single-ended.
+
+/*! @} */
+/*! @name LTC2991_CONTROL_V5678_REG SETTINGS
+ Bitwise OR settings, and write to LTC2991_CONTROL_V5678_REG to configure settings.
+ Bitwise AND with value read from LTC2991_CONTROL_V5678_REG to determine present setting.
+@{ */
+
+#define LTC2991_V7_V8_FILTER_ENABLE 0x80 //!< Enable filters on V7-V8
+#define LTC2991_V7_V8_KELVIN_ENABLE 0x40 //!< Enable V7-V8 for Kelvin. Otherwise, Celsius.
+#define LTC2991_V7_V8_TEMP_ENABLE 0x20 //!< Enable V7-V8 temperature mode.
+#define LTC2991_V7_V8_DIFFERENTIAL_ENABLE 0x10 //!< Enable V7-V8 differential mode. Otherwise, single-ended.
+#define LTC2991_V5_V6_FILTER_ENABLE 0x08 //!< Enable filters on V5-V6
+#define LTC2991_V5_V6_KELVIN_ENABLE 0x04 //!< Enable V5-V6 for Kelvin. Otherwise, Celsius.
+#define LTC2991_V5_V6_TEMP_ENABLE 0x02 //!< Enable V5-V6 temperature mode.
+#define LTC2991_V5_V6_DIFFERENTIAL_ENABLE 0x01 //!< Enable V5-V6 differential mode. Otherwise, single-ended.
+
+/*! @} */
+/*! @name LTC2991_CONTROL_PWM_Tinternal_REG SETTINGS
+ Bitwise OR settings, and write to LTC2991_CONTROL_PWM_Tinternal_REG to configure settings.
+ Bitwise AND with value read from LTC2991_CONTROL_PWM_Tinternal_REG to determine present setting.
+@{ */
+
+#define LTC2991_PWM_0 0x80 //!< PWM threshold Least Significant Bit
+#define LTC2991_PWM_INVERT 0x40 //!< Invert PWM
+#define LTC2991_PWM_ENABLE 0x20 //!< Enable PWM
+#define LTC2991_REPEAT_MODE 0x10 //!< Enable Repeated Aquisition Mode
+#define LTC2991_INT_FILTER_ENABLE 0x08 //!< Enable Internal Temperature Filter
+#define LTC2991_INT_KELVIN_ENABLE 0x04 //!< Enable internal temperature for Kelvin. Otherwise, Celsius.
+/*!@} */
+
+//! Reads a 14-bit adc_code from LTC2991.
+//! @return Returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.
+int8_t LTC2991_adc_read(uint8_t i2c_address, //!< I2C address of the LTC2991. Configured by tying the ADR0, ADR1, and ADR2 pins high or low. See Table 1 of datasheet.
+ uint8_t msb_register_address, /*!< Address of the LTC2991 MSB register to be read. This is also known as the "command byte".
+ Two sequential 8-bit registers are read, starting with the msb_register_address.*/
+ int16_t *adc_code, //!< returns 14-bit value read from the adc
+ int8_t *data_valid //!< returns the status of the DATA_VALID bit. *data_valid=0 indicates stale data
+ );
+
+//! Reads a 14-bit adc_code from the LTC2991 but enforces a maximum timeout.
+//! Similar to LTC2991_adc_read except it repeats until the data_valid bit is set, it fails to receive an I2C acknowledge, or the timeout (in milliseconds)
+//! expires. It keeps trying to read from the LTC2991 every millisecond until the data_valid bit is set (indicating new data since the previous
+//! time this register was read) or until it fails to receive an I2C acknowledge (indicating an error on the I2C bus).
+//! @return Returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.
+int8_t LTC2991_adc_read_timeout(uint8_t i2c_address, //!< I2C address of the LTC2991. Configured by tying the ADR0, ADR1, and ADR2 pins high or low. See Table 1 of datasheet.
+ uint8_t msb_register_address, /*!< Address of the LTC2991 MSB register to be read. This is also known as the "command byte".
+ Two sequential 8-bit registers will be read, starting with the msb_register_address.*/
+ int16_t *adc_code, //!< returns 14-bit value read from the adc
+ int8_t *data_valid, //!< returns the status of the DATA_VALID bit. *data_valid=0 indicates stale data
+ uint16_t timeout, //!< maximum timeout in millisceonds. If at any time a NACK is received the function aborts.
+ uint8_t status_bit //!< If the timeout is reached without valid data (*data_valid=1) the function exits.*/
+ );
+
+//! Reads new data (even after a mode change) by flushing old data and waiting for the data_valid bit to be set.
+//! This function simplifies adc reads when modes are changing. For example, if V1-V2 changes from temperature mode
+//! to differential voltage mode, the data in the register may still correspond to the temperature reading immediately
+//! after the mode change. Flushing one reading and waiting for a new reading guarantees fresh data is received.
+//! If the timeout is reached without valid data (*data_valid=1) the function exits.
+//! @return Returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.
+int8_t LTC2991_adc_read_new_data(uint8_t i2c_address, //!< I2C address of the LTC2991. Configured by tying the ADR0, ADR1, and ADR2 pins high or low. See Table 1 of datasheet.
+ uint8_t msb_register_address, /*!< Address of the LTC2991 MSB register to be read. This is also known as the "command byte".
+ Two sequential 8-bit registers will be read, starting with the msb_register_address.*/
+ int16_t *adc_code, //!< returns 14-bit value read from the adc
+ int8_t *data_valid, //!< returns the status of the DATA_VALID bit. *data_valid=0 indicates stale data
+ uint16_t timeout /*!< maximum timeout in millisceonds. If at any time a NACK is received the function aborts.
+ If the timeout is reached without valid data (*data_valid=1) the function exits.*/
+ );
+
+//! Reads an 8-bit register from the LTC2991 using the standard repeated start format.
+//! @return Returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.
+int8_t LTC2991_register_read(uint8_t i2c_address, //!< I2C address of the LTC2991. Configured by tying the ADR0, ADR1, and ADR2 pins high or low. See Table 1 of datasheet.
+ uint8_t register_address, //!< Address of the LTC2991 register to be read. This is also known as the "command byte".
+ uint8_t *register_data //!< returns 8-bit value read from the LTC2991 register.
+ );
+
+//! Write one byte to an LTC2991 register.
+//! Writes to an 8-bit register inside the LTC2991 using the standard I2C repeated start format.
+//! @return Returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.
+int8_t LTC2991_register_write(uint8_t i2c_address, //!< I2C address of the LTC2991. Configured by tying the ADR0, ADR1, and ADR2 pins high or low. See Table 1 of datasheet.
+ uint8_t register_address, //!< Address of the LTC2991 register to be overwritten. This is also known as the "command byte".
+ uint8_t register_data //!< Value that will be written to the register.
+ );
+
+
+//! Used to set and clear bits in a control register. bits_to_set will be bitwise OR'd with the register.
+//! bits_to_clear will be inverted and bitwise AND'd with the register so that every location with a 1 will result in a 0 in the register.
+//! @return Returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.
+int8_t LTC2991_register_set_clear_bits(uint8_t i2c_address, //!< I2C address of the LTC2991. Configured by tying the ADR0, ADR1, and ADR2 pins high or low. See Table 1 of datasheet.
+ uint8_t register_address, //!< Address of the LTC2991 register to be modified.
+ uint8_t bits_to_set, //!< bits_to_set will be bitwise OR'd with the register.
+ uint8_t bits_to_clear //!< bits_to_clear will be inverted and bitwise AND'd with the register
+ );
+
+//! Calculates the LTC2991 single-ended input voltages
+//! @return the single-ended voCalculatesltage in volts
+float LTC2991_code_to_single_ended_voltage(int16_t adc_code, //!< code read from the adc (from a function such as LTC2991_adc_read)
+ float LTC2991_single_ended_lsb //!< single-ended LSB weight. If not calibrated, use LTC2991_SINGLE_ENDED_LSB
+ );
+
+//! Calculates the LTC2991 Vcc voltage
+//! @return the Vcc voltage in volts
+float LTC2991_code_to_vcc_voltage(int16_t adc_code, //!< code read from the adc (from a function such as LTC2991_adc_read)
+ float LTC2991_single_ended_lsb //!< Vcc LSB weight. If not calibrated, use LTC2991_VCC_LSB
+ );
+
+//! Calculates the LTC2991 differential input voltage.
+//! @return the differential voltage in volts
+float LTC2991_code_to_differential_voltage(int16_t adc_code, //!< code read from the adc (from a function such as LTC2991_adc_read)
+ float LTC2991_differential_lsb //!< differential LSB weight. If not calibrated, use LTC2991_DIFFERENTIAL_LSB
+ );
+
+//! Calculates the LTC2991 temperature
+//! @return the temperature in degrees Celsius or degrees Kevlin (dependent on mode setting).
+float LTC2991_temperature(int16_t adc_code, //!< code read from the adc (from a function such as LTC2991_adc_read).
+ float LTC2991_temperature_lsb, //!< temperature LSB weight. If not calibrated, use LTC2991_TEMPERATURE_LSB
+ boolean unit //!< The temperature unit, true for Kelvin, false for Celsius
+ );
+
+//! Calcultates the LTC2991 diode voltage
+//! @return the diode voltage in volts.
+float LTC2991_code_to_diode_voltage(int16_t adc_code, //!< code read from the adc (from a function such as LTC2991_adc_read)
+ float LTC2991_diode_voltage_lsb //!< diode voltage LSB weight. If not calibrated, use LTC2991_DIODE_VOLTAGE_LSB
+ );
+
+#endif // LTC2991_H