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Linduino
1.3.0
Linear Technology Arduino-Compatible Demonstration Board
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Linear Technology DC571A Demonstration Board. More...
Linear Technology DC571A Demonstration Board.
LTC2412: 2-Channel Differential Input 24-Bit No Latency Delta Sigma ADC
Linear Technology DC346A Demonstration Board. LTC2413: 24-Bit No Latency Delta Sigma ADC with Simultaneous 50Hz/60Hz Rejection ADC
NOTES Setup: Set the terminal baud rate to 115200 and select the newline terminator. Equipment required is a precision voltage source and a precision voltmeter. No external power supply is required. Ensure all jumpers on the demo board are installed in their default positions from the factory. How to test Single-Ended mode: The voltage source should be connected to the ADC such that the negative lead is connected to ground. The positive lead may be connected to any channel input. Ensure voltage is within analog input voltage range -0.3V to +2.5V. How to test Differential Mode: The voltage source should be connected with positive and negative leads to paired channels. The voltage source negative output must also be connected to the COM pin in order to provide a ground-referenced voltage. Ensure voltage is within analog input voltage range -0.3V to +2.5V. Swapping input voltages results in a reversed polarity reading. How to calibrate: Apply 100mV to CH0 with respect to COM pin. Next, Measure this voltage with a precise voltmeter and enter this value. (This takes the reading.) Apply a higher voltage than the first voltage or approximately 2.40 volts to CH0. Anything above 2.40 is not reccomened. It is very likely to reach the ADC's full-scale and poduce invalide lsb and offset. Measure this voltage with a precise voltmeter and enter this value. Calibration is now stored in EEPROM. 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/LTC2412 http://www.linear.com/product/LTC2413
http://www.linear.com/product/LTC2412#demoboards http://www.linear.com/product/LTC2413#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 DC746A.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 | menu_1_read_single_ended () |
Repeats Linduino loop. More... | |
static void | menu_2_change_ref_voltage () |
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 | LTC2412_lsb = 2.98023241E-7 |
Ideal LSB voltage for a perfect part. More... | |
static int32_t | LTC2412_offset_code = 0 |
Ideal offset for a perfect part. More... | |
static float | reference_voltage = 5.0 |
const uint16_t | MISO_TIMEOUT = 1000 |
The MISO timeout (ms) More... | |
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Repeats Linduino loop.
Definition at line 139 of file DC746A.ino.
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Repeats Linduino loop.
Definition at line 170 of file DC746A.ino.
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Definition at line 207 of file DC746A.ino.
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Prints main menu.
Definition at line 237 of file DC746A.ino.
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Prints the title block when program first starts.
Definition at line 223 of file DC746A.ino.
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Initialize Linduino.
Definition at line 123 of file DC746A.ino.
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Set to 1 if the board is connected.
Definition at line 113 of file DC746A.ino.
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Ideal LSB voltage for a perfect part.
Definition at line 114 of file DC746A.ino.
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Ideal offset for a perfect part.
Definition at line 115 of file DC746A.ino.
const uint16_t MISO_TIMEOUT = 1000 |
The MISO timeout (ms)
Definition at line 120 of file DC746A.ino.
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Definition at line 116 of file DC746A.ino.