![]() |
Linduino
1.3.0
Linear Technology Arduino-Compatible Demonstration Board
|
Linear Technology DC1491A Demonstration Board. More...
Linear Technology DC1491A Demonstration Board.
LTC2461: 16-Bit I2C Delta Sigma ADCs with 10ppm/C Max Precision Reference.
Linear Technology DC1493A Demonstration Board. LTC2463: Differential, 16-Bit I2C Delta Sigma ADCs with 10ppm/C Max Precision Reference.
Linear Technology DC1266A Demonstration Board. LTC2453: Differential, 16-Bit Delta Sigma ADC With I2C Interface
NOTES Setup: Set the terminal baud rate to 115200 and select the newline terminator. A voltage source (preferably low-noise) and a precision voltmeter are required. Ensure all jumpers on the demo board are installed in their default positions from the factory. Refer to Demo Manual DC1491A. * Run menu entry 4 if the voltage readings are not accurate. The DC1491A is not calibrated in the factory. Default values will be used until first customer calibration. If the voltage readings are in error, run menu entry 4 again. The previous calibration by the user may have been performed improperly. Menu Entry 1: Read ADC Voltage Ensure the applied voltage is within the analog input voltage range of 0V to +1.25V. Connect the voltage source between the DC1491A's IN terminal and GND terminal. This menu entry configures the LTC2461 to operate in 30 Hz mode. Menu Entry 2: Sleep Mode Enables sleep mode. Note that the REFOUT voltage will go to zero. Any subsequent read command will wake up the LTC2461. Menu Entry 3: 60 Hz Speed Mode Setup is the same as for Menu Entry 1, except the LTC2461 operates in 60 Hz mode, and continuous background offset calibration is not performed. Menu Entry 4: Calibration Follow the command cues to alternately enter voltages with VIN at GND and with VIN near full scale voltage, approximately 1.20V. Upon startup, the calibration values will be restored. USER INPUT DATA FORMAT: decimal : 1024 hex : 0x400 octal : 02000 (leading 0 "zero") binary : B10000000000 float : 1024.0
http://www.linear.com/product/LTC2461 http://www.linear.com/product/LTC2463 http://www.linear.com/product/LTC2453
http://www.linear.com/product/LTC2461#demoboards http://www.linear.com/product/LTC2463#demoboards http://www.linear.com/product/LTC2453#demoboards
Copyright 2018(c) Analog Devices, Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, 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.
Definition in file DC1491A.ino.
Go to the source code of this file.
Functions | |
static void | print_title () |
Prints the title block when program first starts. More... | |
static void | print_prompt () |
Prints main menu. More... | |
static int8_t | restore_calibration () |
Read stored calibration parameters from nonvolatile EEPROM on demo board. More... | |
static void | store_calibration () |
Store measured calibration parameters to nonvolatile EEPROM on demo board. More... | |
static int8_t | menu_1_read_30Hz_mode () |
Read ADC in 30 Hz mode. More... | |
static int8_t | menu_2_sleep_mode () |
Sleep Mode. More... | |
static int8_t | menu_3_read_60Hz_mode () |
Read ADC in 60 Hz mode. More... | |
static int8_t | menu_4_calibrate () |
Calibrate the LTC2461. More... | |
static void | setup () |
Initialize Linduino. More... | |
static void | loop () |
Repeats Linduino loop. More... | |
Variables | |
static uint8_t | demo_board_connected |
Set to 1 if the board is connected. More... | |
static float | LTC2461_lsb = 1.907377E-05 |
Ideal LSB voltage for a perfect part (Vref/(2^16)) More... | |
static int32_t | LTC2461_offset_code = 0 |
Ideal offset for a perfect part. More... | |
|
static |
Repeats Linduino loop.
Definition at line 146 of file DC1491A.ino.
|
static |
Read ADC in 30 Hz mode.
Definition at line 261 of file DC1491A.ino.
|
static |
Sleep Mode.
Definition at line 290 of file DC1491A.ino.
|
static |
Read ADC in 60 Hz mode.
Definition at line 307 of file DC1491A.ino.
|
static |
Calibrate the LTC2461.
Definition at line 338 of file DC1491A.ino.
|
static |
Prints main menu.
Definition at line 213 of file DC1491A.ino.
|
static |
Prints the title block when program first starts.
Definition at line 197 of file DC1491A.ino.
|
static |
Read stored calibration parameters from nonvolatile EEPROM on demo board.
Definition at line 236 of file DC1491A.ino.
|
static |
Initialize Linduino.
Definition at line 128 of file DC1491A.ino.
|
static |
Store measured calibration parameters to nonvolatile EEPROM on demo board.
Definition at line 225 of file DC1491A.ino.
|
static |
Set to 1 if the board is connected.
Definition at line 121 of file DC1491A.ino.
|
static |
Ideal LSB voltage for a perfect part (Vref/(2^16))
Definition at line 124 of file DC1491A.ino.
|
static |
Ideal offset for a perfect part.
Definition at line 125 of file DC1491A.ino.