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====== DPG Lite ======

DPG Lite is used to download data to supported HS-DAC evaluation boards.
Refer to your evaluation board user guide if you need to use DPG Lite.
<note important>**Known Issue:** ACE may fail to detect HS-DAC boards, details [[resources:tools-software:ace:knownissues#high-speed_dac_eval_boards_are_not_discovered|here]].</note>

===== Supported Evaluation Boards =====

The supported DAC evaluation boards are: 
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9148.html|AD9148]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/eval-ad9129.html|AD9129]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9119.html|AD9119]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/eval-ad9122.html|AD9122]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9121.html|AD9121]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9125.html|AD9125]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9135.html|AD9135]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9136.html|AD9136]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9142A.html|AD9142A]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/eval-ad9144.html|AD9144]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD916X.html|AD9162/1/3/4]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9172.html|AD9172/1/3/4/5/6]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9739A.html|AD9739A]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/eval-ad9737a.html|AD9737A]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9747.html|AD9747]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9746.html|AD9746]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9745.html|AD9745]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9743.html|AD9743]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9741.html|AD9741]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9783.html|AD9783/81/80]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9717.html|AD9717]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9716.html|AD9716]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9715.html|AD9715]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9714.html|AD971414]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9117.html|AD9117]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9116.html|AD9116]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9115.html|AD9115]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9114.html|AD9114]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9707.html|AD9707]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9706.html|AD9706]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9705.html|AD9705]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9704.html|AD9704]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9736.html|AD9736]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9735.html|AD9735]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9734.html|AD9734]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9779A.html|AD9779A]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9778A.html|AD9778A]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9776A.html|AD9776A]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9146.html|AD9146]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9739.html|AD9739]]/37
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9788.html|AD9788]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9787.html|AD9787]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9785.html|AD9785]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9748.html|AD9748]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9744.html|AD9744]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9742.html|AD9742]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9740.html|AD9740]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9767.html|AD9767/65/63/09]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-AD9081.html|AD9081/82]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/eval-ad9986.html|AD9986]] / [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/eval-ad9988.html|AD9988]]

Evaluation boards must be attached to a controller board. The controller board is used to store and transmit the data to the DACs under test.
The supported controller boards are:
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-DPG3.html|DPG3]] (Obsolete)
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-SDP-H1.html|SDP-H1]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/EVAL-ADS7-V2.html|ADS7]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/ADS8-V1EBZ.html|ADS8]]
  * [[adi>en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/ADS9-V2EBZ.html|ADS9]]

Refer to the DAC evaluation board user guide to choose the correct controller board to associate with the evaluation board.

===== Installation =====

DPG Lite is installed as an option along ACE:

{{ :resources:tools-software:ace:dpgliteinstall.png?nolink&400 |}}

<note>ACE download page: [[adi>ace | Analysis | Control | Evaluation (ACE) Software]]</note>

===== Running DPG Lite =====

A shortcut will be installed to your start menu named "DPGDownloaderLite" in the Analog Devices shortcut folder.

===== The Main Screen =====

The Main Screen is divided into two sections. The top section allows you to add data vectors to DPG Lite. 
The bottom section displays a panel for the attached controller and evaluation boards.

{{ :resources:tools-software:ace:dpg-lite-main-screen.png?nolink&600 |}}

To begin, add data vectors to the application.
Once the vectors have been setup, the boards can be configured, the vectors can be downloaded into the controller board's memory and played to the DACs under test.

Refer to the evaluation board user guide to learn more about how to configure it in DPG Lite.

The rest of this guide will go over how to generate data vectors. 

===== Data Vectors =====
==== Adding Vectors ====
{{ :resources:eval:dpg:dpgdownloader_addingvectors.png?nolink& |}}

Data vectors are added to the main screen before they can be used with a board. This allows the same data to be used for multiple channels and multiple boards without duplicating the memory requirements on the PC. Data vectors can be loaded in from an existing file, or they can be generated by the DPG Lite directly.

=== Buttons ===
|{{:resources:eval:dpg:dpgdownloader_adddatafile.png?nolink& |}}|Adds a vector from an existing file. See [[#Loading Data Files]] for more information. Clicking the down arrow will display a list of the last 10 data files that were loaded.|
|{{:resources:eval:dpg:dpgdownloader_addgeneratedwaveform.png?nolink& |}}|Displays a drop-down list of the available vector generators. See [[#Generating Data Vectors]] for more information.|
|{{:resources:eval:dpg:dpgdownloader_removeselected.png?nolink& |}}|Removes the selected vector. The selected vector is highlighted with a border. If the selected vector is from a data file, removing the vector from DPG Lite will not delete the file itself. The data file can be added back at any time.|
|{{:resources:eval:dpg:dpgdownloader_removeall.png?nolink& |}}|Removes all vectors from the list.|
|{{:resources:eval:dpg:dpgdownloader_graphselectedvector.png?nolink& |}}|Displays both a time-domain and frequency-domain graph of the selected vector(s). See [[#Graphing Vectors]] for more information.|

=== Selecting Vectors ===
To remove a vector, or to graph a vector, it must be selected. To select a vector, click on its vector number on the left side of each vector. This will cause a colored border to be drawn around the vector, indicating it is selected. To select multiple vectors at once, hold down the Ctrl key while clicking on the individual vectors.

==== Loading Data Files ====
{{ :resources:eval:dpg:dpgdownloader_loadingdatafiles.png?nolink& |}}

To add a data file, click on Add Data File. You will then be prompted to select which file to load. After selecting a valid file, an entry will be added to the Files List area. The item will initially be listed as "Processing". During this time, DPG Lite is reading the contents of the data file, and determining certain statistics about the file. Once the file has been read in, the Processing text will disappear.

For each file listed, a Vector Number is displayed on the left. This number is only used to assist you when selecting the files to load into the board. The number will change depending on the order in which files are loaded in. The file name of the original data file path, the file format, and number of records (length) in the file are also listed.

For certain file types, a Resolution entry will also be displayed, to the right of the Scaling box. This is used to properly scale an unsigned vector around mid-scale, and when graphing the vector, to properly calculate dB full-scale. Set this to the equivalent resolution of the file. For example, if the file contains values between 0 and 16383, then the file would be 14-bit resolution.

To remove a data file, click on the entry once to highlight it. Once highlighted, click on Remove Selected. To remove all the listed data files, click Remove All.

=== Supported File Formats ===
^File Type^Extension^Multi-Channel^
|Legacy DPG Hex Format|.hex|No|
|Legacy DPG Text Format|.txt|No|

=== Example Vector Files ===

<code - dpg.txt>
4337
3448
2257
890
</code>

<code - dpg.hex>
10F1
0D78
8D1
37A
</code>

==== Generating Data Vectors ====
Several different vector generators are available from within DPG Lite. They are all available from the Add Generated Waveform drop-down list, which is located to the right of the Add Data File button.

=== Single Tone ===
{{ :resources:eval:dpg:dpgdownloader_singletone.png?nolink& |}}

The Single Tone generator creates a simple sine wave vector. Enter the clock frequency of the data going into the DAC, the resolution (number of bits) of the DAC, as well as the desired frequency, amplitude, and relative phase of the sine wave. The generator will always generate vectors which can be looped repeatedly. To ensure contiguous waveforms over multiple loop iterations, the generator will calculate an achievable frequency that is as close to the desired frequency as possible. This frequency will be displayed in the Calculated Frequency box, as well as the number of complete cycles that will be generated in the vector. It may be possible to achieve a calculated frequency exactly equal to the desired frequency. Often, changing the record length is required for this to occur.

If either the Clock Frequency or Desired Frequency is invalid, the box will turn red. A vector will not be available until any red boxes have been corrected.

The “Unsigned Data” option should match the settings in the DAC. Most DAC's can be setup to accept unsigned (straight binary) or signed (2's complement) data.

The Single Tone generator can generate a quadrature (complex) tone in addition to the primary (in-phase) tone, by checking the "Generate Complex Data" option. This second (Q) tone is equal in frequency and amplitude to the primary (I) tone, but is 90° out of phase. By default, the Q tone is -90° relative to the I tone. Entering a negative frequency in the Desired Frequency box will cause the Q tone to be +90°.

The "Allow Even Cycle Count" check box allows the user to override the default settings of the tone generator and allow an even number of cycles per vector. This may lead to the appearance of degraded DAC performance, as only a subset of the DAC's full code range will be exercised. This has the effect of distributing the quantization noise over only those codes, resulting in degraded performance. It is highly recommended that this feature not be enabled.

=== Multi-Tone ===
{{ :resources:eval:dpg:dpgdownloader_multitone.png?850&nolink& |}}

The Multi-Tone generator creates vectors that are composed of multiple sine wave vectors. Each tone can have its own frequency, amplitude, and phase. As with the Single Tone generator, the Multi-Tone generator always generates individual tones which will loop properly. In the tone list, the desired frequency and amplitude are listed first. In dark gray, the calculated frequency and number of cycles are displayed. If the tone cannot be generated (for example, the Sample Rate is too low), the tone will appear red in the tone list, and the dark gray text will change to an explanation of why the tone cannot be generated.

|{{ :resources:eval:dpg:dpgdownloader_multitone_addtone.png?nolink& |}}|**Add Tone:** Click this button to add a new tone to the tone list.|
|{{ :resources:eval:dpg:dpgdownloader_multitone_edittone.png?nolink& |}}|**Edit Selected Tone:** Click this button to edit the selected (highlighted) tone.|
|{{ :resources:eval:dpg:dpgdownloader_multitone_removetone.png?nolink& |}}|**Remove Selected Tone:** Removes the selected tone from the tone list.|

When multiple sine vectors are summed together, the possibility for clipping (data out of range) occurs. When clipping is detected, a warning is displayed:

{{ :resources:eval:dpg:dpgdownloader_multitone_clipping.png?850&nolink& |}}

To correct this error, lower the amplitude of the overall vector, or lower the amplitude of the individual tones until the warning message disappears.

The Multi-Tone generator can generate a quadrature (complex) tone in addition to the primary (in-phase) tone, by checking the "Generate Complex Data" option. This second (Q) tone is equal in frequency and amplitude to the primary (I) tone for each individual tone, but is 90° out of phase. By default, the Q tone is -90° relative to the I tone. Entering a negative frequency in the Desired Frequency box will cause the Q tone to be +90°. 

The "Allow Even Cycle Count" check box allows the user to override the default settings of the tone generator and allow an even number of cycles per tone per vector. This may lead to the appearance of degraded DAC performance, as only a subset of the DAC's full code range might be exercised. This has the effect of distributing the quantization noise over only those codes, resulting in degraded performance. It is highly recommended that this feature not be enabled.

=== DC ===
{{ :resources:eval:dpg:dpgdownloader_dc.png?850&nolink& |}}

The DC generator generates a vector in which every element is the value specified in the Value box. The Value can be entered in Decimal or Hex (hexadecimal).

=== Noise Generator ===
{{ :resources:eval:dpg:dpgdownloader_noise.png?850&nolink& |}}

The Noise Generator generates a vector with pseudo-random noise, by a variety of techniques. Gaussian, Uniform, and White Noise types are available.

==== Advanced Vector Generator ====

{{page>resources:tools-software:ace:dpg-lite:advanced-vector-generator&noheader&nofooter&noeditbtn}}

==== Graphing Vectors ====
{{ :resources:eval:dpg:dpgdownloader_graphingvectors.png?nolink& |}}

The graph display shows the selected vector(s) in both the time domain and frequency domain. 

=== Time Domain ===
The time domain graph (upper) shows the digital code amplitude. The x-axes is either time, if the vector is a generated vector, or sample number, if the vector is from a data file. When graphing both a generated vector and a data file in the same window, two X axes will be displayed:

{{ :resources:eval:dpg:dpgdownloader_graphxscale.png?nolink& |}}

Note that even though the two vectors are drawn on top of each other, they correspond to different X axes, and thus cannot be compared directly.

The minimum and maximum value of the time domain waveform is displayed along the bottom of the graph. These values are useful in ensuring the waveform does not clip.

=== Frequency Domain ===
The frequency domain graph (lower), displays the amplitude versus frequency graph of the data. The x-axes displays the absolute frequency for generated vectors, or the relative frequency for data file vectors. The y-axes displays results in dB of Full Scale for generated vectors, and raw code values for data files.

The coupling mode can be selected by the control on the bottom of the graph. For most operations, AC is the preferred choice. For unsigned vectors, this will make no difference. For signed vectors, selecting AC will subtract the vector's average value from each individual point.

=== Graphing Controls ===
|{{ :resources:eval:dpg:dpgdownloader_graphpan.png?nolink& |}}|**Pan:** Click and Drag to move the graph window|
|{{ :resources:eval:dpg:dpgdownloader_graphzoom.png?nolink& |}}|**Zoom:** Drag a box to select the region to zoom in to|
|{{ :resources:eval:dpg:dpgdownloader_graphreset.png?nolink& |}}|**Reset:** Reverts the pan and zoom settings to their original values|

The range of the axes can also be changed by clicking on the first or last value in the range.
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