Linduino  1.3.0
Linear Technology Arduino-Compatible Demonstration Board

Linear Technology DC1684AA Demonstration Board. More...

Detailed Description

Linear Technology DC1684AA Demonstration Board.

LTC2758: Dual Serial 18-Bit SoftSpan IOUT DAC

NOTES
  Setup:
   Set the terminal baud rate to 115200 and select the newline terminator.

   An external +/- 15V power supply is required to power the circuit.

  Explanation of Commands:
   1- Select DAC
   Select between DAC A, DAC B, or both.

   2- Change Span of Selected DAC
   |   Command   | Range Selected |
   | C3 C2 C1 C0 |                |
   |-------------|----------------|
   | 1  0  0  0  |    0V - 5V     |
   | 1  0  0  1  |    0V - 10V    |
   | 1  0  1  0  |   -5V - +5V    |
   | 1  0  1  1  |  -10V - +10V   |
   | 1  1  0  0  | -2.5V - +2.5V  |
   | 1  1  0  1  | -2.5V - +7V    |

   3- Voltage Output
   Displays the calculated voltage depending on the code input from user and
   voltage range selected.

   4- Square wave output
   Generates a square wave on the output pin. This function helps to measure
   settling time and glitch impulse.

USER INPUT DATA FORMAT:
 decimal : 1024
 hex     : 0x400
 octal   : 02000  (leading 0 "zero")
 binary  : B10000000000
 float   : 1024.0

http://www.linear.com/product/LTC2758

http://www.linear.com/product/LTC2758#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:

  • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  • 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.
  • Neither the name of Analog Devices, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
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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 DC1684AA.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 uint8_t menu1_select_dac ()
 Function to select DAC and set DAC address. More...
 
static void menu2_change_range ()
 Function to choose the range of voltages to be used. More...
 
static uint8_t menu3_voltage_output ()
 Function to enter a digital value and get the analog output. More...
 
static uint8_t menu4_square_wave_output ()
 Function to generate a square wave of desired frequency and voltage ranges. More...
 
static void setup ()
 Initialize Linduino. More...
 
static uint8_t discover_DC1684AB (char *product_name, char *board_name)
 Read the ID string from the EEPROM and determine if the correct board is connected. 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 DACA_RANGE_LOW = 0
 
static float DACA_RANGE_HIGH = 5
 
static float DACB_RANGE_LOW = 0
 
static float DACB_RANGE_HIGH = 5
 
static uint8_t DAC_SELECTED = ADDRESS_DACA
 

Function Documentation

◆ discover_DC1684AB()

static uint8_t discover_DC1684AB ( char *  product_name,
char *  board_name 
)
static

Read the ID string from the EEPROM and determine if the correct board is connected.

Returns 1 if successful, 0 if not successful

Definition at line 140 of file DC1684AA.ino.

◆ loop()

static void loop ( void  )
static

Repeats Linduino loop.

Definition at line 175 of file DC1684AA.ino.

◆ menu1_select_dac()

static uint8_t menu1_select_dac ( )
static

Function to select DAC and set DAC address.

Definition at line 262 of file DC1684AA.ino.

◆ menu2_change_range()

static void menu2_change_range ( )
static

Function to choose the range of voltages to be used.

Definition at line 290 of file DC1684AA.ino.

◆ menu3_voltage_output()

static uint8_t menu3_voltage_output ( )
static

Function to enter a digital value and get the analog output.

Definition at line 389 of file DC1684AA.ino.

◆ menu4_square_wave_output()

static uint8_t menu4_square_wave_output ( )
static

Function to generate a square wave of desired frequency and voltage ranges.

Definition at line 460 of file DC1684AA.ino.

◆ print_prompt()

static void print_prompt ( )
static

Prints main menu.

Definition at line 222 of file DC1684AA.ino.

◆ print_title()

static void print_title ( void  )
static

Prints the title block when program first starts.

Definition at line 207 of file DC1684AA.ino.

◆ setup()

static void setup ( void  )
static

Initialize Linduino.

Definition at line 117 of file DC1684AA.ino.

Variable Documentation

◆ DAC_SELECTED

uint8_t DAC_SELECTED = ADDRESS_DACA
static

Definition at line 106 of file DC1684AA.ino.

◆ DACA_RANGE_HIGH

float DACA_RANGE_HIGH = 5
static

Definition at line 101 of file DC1684AA.ino.

◆ DACA_RANGE_LOW

float DACA_RANGE_LOW = 0
static

Definition at line 100 of file DC1684AA.ino.

◆ DACB_RANGE_HIGH

float DACB_RANGE_HIGH = 5
static

Definition at line 104 of file DC1684AA.ino.

◆ DACB_RANGE_LOW

float DACB_RANGE_LOW = 0
static

Definition at line 103 of file DC1684AA.ino.

◆ demo_board_connected

uint8_t demo_board_connected
static

Set to 1 if the board is connected.

Definition at line 98 of file DC1684AA.ino.