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Linduino
1.3.0
Linear Technology Arduino-Compatible Demonstration Board
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LTC2604: Quad 16-Bit Rail-to-Rail DACs in 16-Lead SSOP. More...
LTC2604: Quad 16-Bit Rail-to-Rail DACs in 16-Lead SSOP.
The LTC2604/LTC2614/LTC2624 are quad 16-,14- and 12-bit 2.5V to 5.5V rail-to-rail voltage output DACs in 16-lead narrow SSOP packages. These parts have separate reference inputs for each DAC. They have built-in high performance output buffers and are guaranteed monotonic. These parts establish advanced performance standards for output drive, crosstalk and load regulation in single-supply, voltage output multiples.
http://www.linear.com/product/LTC2604
http://www.linear.com/product/LTC2604#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 DC809A.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 (int16_t selected_dac) |
Prints main menu. More... | |
static int16_t | prompt_voltage_or_code () |
Prompt user to enter a voltage or digital code to send to DAC. More... | |
static uint16_t | get_voltage (float LTC2604_lsb, int16_t LTC2604_offset) |
Get voltage from user input, calculate DAC code based on lsb, offset. More... | |
static uint16_t | get_code () |
Get code to send to DAC directly, in decimal, hex, or binary. More... | |
static void | menu_1_select_dac (int16_t *selected_dac) |
Select which DAC to operate on. More... | |
static void | menu_2_write_to_input_register (int16_t selected_dac) |
Write data to input register, but do not update DAC output. More... | |
static void | menu_3_write_and_update_dac (int16_t selected_dac) |
Write data to DAC register (which updates output immediately) More... | |
static void | menu_4_update_power_up_dac (int16_t selected_dac) |
Update DAC with data that is stored in input register, power up if sleeping. More... | |
static void | menu_5_power_down_dac (int16_t selected_dac) |
Power down DAC. More... | |
static void | setup () |
Initialize Linduino. More... | |
static void | loop () |
Repeats Linduino loops. More... | |
Enumerations | |
enum | { PROMPT_VOLTAGE = 0, PROMPT_CODE = 1 } |
Used to keep track to print voltage or print code. More... | |
Variables | |
static uint8_t | demo_board_connected |
set to 1 if the board is connected More... | |
static uint8_t | shift_count =0 |
The data align shift count for 16-bit =0 14-bit =2 12-bit =4. More... | |
static float | reference_voltage [4] = {4.096,4.096,4.096,4.096} |
set based on jumper positions More... | |
static int16_t | LTC2604_offset =0 |
static float | LTC2604_lsb [4] |
const uint8_t | address_map [5] = {LTC2604_DAC_A, LTC2604_DAC_B, LTC2604_DAC_C, LTC2604_DAC_D, LTC2604_DAC_ALL} |
Lookup table for DAC address. More... | |
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Get code to send to DAC directly, in decimal, hex, or binary.
Definition at line 249 of file DC809A.ino.
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Get voltage from user input, calculate DAC code based on lsb, offset.
LTC2604_lsb | the voltage LSB of the DAC |
LTC2604_offset | the Offset of the DAC |
Definition at line 234 of file DC809A.ino.
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Repeats Linduino loops.
Definition at line 125 of file DC809A.ino.
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Select which DAC to operate on.
selected_dac | what DAC to operate on |
Definition at line 164 of file DC809A.ino.
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Write data to input register, but do not update DAC output.
selected_dac | what DAC to operate on |
Definition at line 176 of file DC809A.ino.
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Write data to DAC register (which updates output immediately)
selected_dac | what DAC to operate on |
Definition at line 189 of file DC809A.ino.
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Update DAC with data that is stored in input register, power up if sleeping.
selected_dac | what DAC to operate on |
Definition at line 202 of file DC809A.ino.
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Power down DAC.
selected_dac | what DAC to operate on |
Definition at line 209 of file DC809A.ino.
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Prints main menu.
selected_dac | what DAC to operate on |
Definition at line 277 of file DC809A.ino.
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Prints the title block when program first starts.
Definition at line 262 of file DC809A.ino.
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Prompt user to enter a voltage or digital code to send to DAC.
Definition at line 218 of file DC809A.ino.
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Initialize Linduino.
Definition at line 109 of file DC809A.ino.
anonymous enum |
Used to keep track to print voltage or print code.
Enumerator | |
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PROMPT_VOLTAGE | 0 |
PROMPT_CODE | 1 |
Definition at line 102 of file DC809A.ino.
const uint8_t address_map[5] = {LTC2604_DAC_A, LTC2604_DAC_B, LTC2604_DAC_C, LTC2604_DAC_D, LTC2604_DAC_ALL} |
Lookup table for DAC address.
Allows the "All DACs" address to be indexed right after DAC D in loops. This technique is very useful for devices with non-monotonic channel addresses. Map entered option 0..2 to DAC address
Definition at line 99 of file DC809A.ino.
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set to 1 if the board is connected
Definition at line 87 of file DC809A.ino.
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Definition at line 91 of file DC809A.ino.
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Definition at line 90 of file DC809A.ino.
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set based on jumper positions
Definition at line 89 of file DC809A.ino.
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The data align shift count for 16-bit =0 14-bit =2 12-bit =4.
Definition at line 88 of file DC809A.ino.