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learn:instrumentation:tutorials:analog-discovery-studio-pattern-generator [2019/06/07 23:34] – [2. Using the Pattern Generator] Boris Leonovlearn:instrumentation:tutorials:analog-discovery-studio-pattern-generator [2022/10/04 11:38] (current) – external edit 127.0.0.1
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-======Using the Pattern Generator (Under Construction)====== +======Using the Pattern Generator (Page has Moved) ======
-{{:reference:instrumentation:analog-discovery-studio:hardware-reference-manual:pattern-generator.png?nolink&800}}+
  
-===== Introduction ===== +<WRAP round important 660px> 
-This guide explains the use of the //Patterns// instrument in WaveForms. This instrument is used to generate output sequences on a Digilent Test & Measurement Device's digital input/output channels. +This guide has been replaced by [[test-and-measurement:guides:waveforms-pattern-generator]], and is slated to be removed from the Digilent Wiki. Please update all bookmarks and saved links to the new location.
----- +
-===== Prerequisites ===== +
-  * A Digilent Test & Measurement Device with Digital Input/Output Channels +
-  * A Computer with WaveForms Software Installed +
- +
----- +
-==== 1. Opening the Pattern Generator==== +
- +
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-== 1.1 == +
-Plug in the Test & Measurement Device, then start WaveForms and make sure the device is connected. +
- +
-If no device is connected to the host computer when WaveForms launches, the **Device Manager** will be launched. Make sure that the device is plugged in and turned on, at which point it will appear in the Device Manager's device list (1). Click on the device in the list to select it, then click the Select button (2) to close the Device Manager. +
- +
-**Note:** //"DEMO" devices are also listed, which allow the user to use WaveForms and create projects without a physical device.// +
- +
-**Note:** //The Device Manager can be opened by clicking on the "Connected Device" button in the bottom right corner of the screen (3), or by selecting "Device Manager" from the "Settings" menu at the top of the screen.//+
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-{{ :learn:instrumentation:tutorials:analog-discovery-studio-oscilloscope:waveforms-device-manager.png?600 |}} 
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----- 
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-== 1.2 == 
-Once the Welcome page loads, in the instrument panel at the left side of the window, click on the **Patterns** button to open the //Pattern Generator// instrument. 
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-{{ :learn:instrumentation:tutorials:waveforms-instrument-panel:waveforms-instrument-panel-patterns.png?nolink&600 |}} 
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----- 
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-=== 1.3 === 
-Once the //Pattern Generator// instrument opens, the window contains the output plot (1), the configuration panel (2) to left of the plot, and the control toolbar (3) at the top of the window. 
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-{{learn:instrumentation:tutorials:analog-discovery-studio-pattern-generator:pattern_analyzer.png?600}} 
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----- 
- 
-==== 2. Using the Pattern Generator==== 
-//This section walks through setting up the //Pattern Generator// to generate a signal on a single channel.// 
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-=== 2.1 Software Setup === 
-On the left panel, select the "Click to Add channels" button (1 in image at right) or the green plus button ({{:learn:instrumentation:tutorials:analog-discovery-studio-logic-analyzer:symbol_plus.png?nolink}}). The menu that pops up allows signals to be added as individual lines, a bus, a standard protocol, or a custom protocol. To add individual lines, select "Signal" (2) and use CTRL and/or SHIFT to select multiple lines. For now, select DIO 0 and click "Ok". Under the **Type** column, choose "Clock" from the drop-down menu and leave the other settings in their default state.  
- 
-Return to WaveForms' Welcome page by clicking on its tab at the top left of the screen and select //Logic//. Alternatively, press the green plus button next to "Welcome" in the tab to add the instrument (3). On the left panel, select the "Click to Add channels" button or the green plus button ({{:learn:instrumentation:tutorials:analog-discovery-studio-logic-analyzer:symbol_plus.png?nolink}}). From "Signals" select DIO 0 and click "Ok". For a detailed tutorial about the //Logic Analyzer// instrument see [[learn:instrumentation:tutorials:analog-discovery-studio-logic-analyzer:start|]]. 
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-{{learn:instrumentation:tutorials:analog-discovery-studio-pattern-generator:2.1b.png?600}} 
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-=== 2.2 Generate Data === 
-In the //Pattern Generator// instrument, click the Run button ({{:learn:instrumentation:tutorials:waveforms-buttons:waveforms-run.png?nolink}}) button in the control bar, and then click the Run button in the //Logic Analyzer// instrument (1 & 2, respectively, in the image to the right). The signal being generated by the //Patterns// instruments will appear in the //Logic Analyzer// instrument. 
- 
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-{{learn:instrumentation:tutorials:analog-discovery-studio-logic-analyzer:2.2.png?600}} 
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----- 
- 
-==== 3. Pattern Generator User Interface Overview ==== 
-//This section walks through the wide variety of controls and features available in the //Pattern Generator// instrument// 
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-=== 3.1 Control Interface === 
-The bar near the top contains several options for controlling the pattern generator.  
- 
-The Run/Stop button starts and stops the pattern generator. 
- 
-The **Trigger** drop-down allows for selection of trigger sources from other instruments. /* For more information, please see the **Cross-Triggering Guide** FIXME link.*/ 
- 
-The **Wait** drop-down allows for configuration of a delay after pressing Run (or the trigger event occurs). The value can be selected from the menu or typed in. If typing, be sure to enter a unit (ns, us, s, ms, ks, Ms) to avoid defaulting to the wrong order of magnitude. 
- 
-The **Run** drop-down determines the period of time the pattern generator will generate a pattern for. It also automatically changes the horizontal time axis in the plot (unless manually overridden as shown in section 3.2), making it so the //Pattern Generator// plot always shows a single period of the pattern (if //continuous// is selected) or the the entire pattern that will be generated (if a time period is selected).  
- 
-The **Repeat** drop-down is available if the //Pattern Generator// is set to run for a finite amount of time, and will cause the instrument to generate the pattern the set number of times. In "continuous" mode this option is greyed out and set to "infinite". 
- 
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-{{learn:instrumentation:tutorials:analog-discovery-studio-pattern-generator:control_bar.png?600}} 
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-=== 3.2 Pattern Signal Controls === 
-Starting from the top left, the plus ({{:learn:instrumentation:tutorials:analog-discovery-studio-logic-analyzer:symbol_plus.png?nolink}}) and minus ({{learn:instrumentation:tutorials:analog-discovery-studio-pattern-generator:minus.png?nolink}}) buttons can be used to add or remove channels. 
- 
-The Show icon ({{learn:instrumentation:tutorials:analog-discovery-studio-pattern-generator:show.png?nolink}}) selects which option columns are shown for each channel. The first four columns (**Output**, **Idle**, **Type**, and **Parameter1**) are available for every type of signal, while the last 2 columns are type-dependent.  
- 
-The selections available in **Parameter1** through **Parameter3** menus will change depending on the selection in the **Type**. 
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-**Output** switches between four output behaviors: 
-  
-  * //PP (Push-Pull):// possible output values are 0 and 1. 
-  * //OD (Open Drain):// possible output values are 0 and Z. Bus values are computed by treating Z as 1. Requires a pull-up resistor 
-  * //OS (Open Source):// possible output values are Z and 1. Bus values are computed by treating Z as 0. Requires a pull-down resistor  
-  * //TS (Tri-State):// possible output values are 0, 1, and Z. Bus values containing Z will be displayed as a question mark. 
- 
-**Idle** determines if the line is set the //initial// value, //0//, //1//, or //Z// when no signal is being driven through  
- 
-**Type** determines the output types. Since the **Parameter** columns depend on **Type**, they will be described alongside the signal type: 
- 
-(NOTE: Not all parameters are used for all signal types.) 
-  * //Constant:// holds the signal as a constant, set by **Parameter 1**. Allowable states are determined by the **Output** column described above.  
-  * //Clock:// generates a clock signal. The frequency is set by **Parameter1**, the duty cycle percentage is set by **Parameter2**, and the phase in degrees is set by **Parameter3** 
-  * //Pulse:// generates a pulse signal. **Parameter1** determines if the signal is active high or low, the number of data points to hold the signal low is set by **Parameter2**, and number of data points to hold the signal high is set by **Parameter3**. By default data point lasts 10//ns//, so use the following formula to determine the pulse frequency: {{learn:instrumentation:tutorials:analog-discovery-studio-pattern-generator:equation.png?nolink}} 
-  * //Random:// generates a random pattern of outputs at a frequency determined by **Parameter1**. 
-  * //Custom:// generates a custom pattern with frequency determined by **Parameter1**. The contents of the custom signal can be loaded from a file or set by hand by clicking the Parameter Editor button (see below) 
- 
-Each signal can be further modified by clicking the Parameter Editor button ({{learn:instrumentation:tutorials:analog-discovery-studio-pattern-generator:params.png?nolink}}), located to the left of the **Output** column. Each **Type** selection will generate a different menu type. 
- 
-Use the Properties button ({{learn:instrumentation:tutorials:analog-discovery-studio-pattern-generator:properties.png?nolink}}) to change the name or DIO pin of each signal line. It is located to the right of the signal name. 
- 
-</WRAP> 
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-{{learn:instrumentation:tutorials:analog-discovery-studio-pattern-generator:pattern_signals.png?600}} 
-</WRAP> 
-</WRAP> 
-<WRAP group> 
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-=== 3.3 Plot Controls === 
-If the plot needs to be set to show a specific point in the pattern, this can be achieved using the drop-down menus directly below the control bar. The drop-down with the word "Auto" in it needs to be set to "Manual" to change the other two menus. 
- 
-The **Show** drop-down will determine how much time per division to display. 
- 
-The **From** drop-down will determine what the start point will be on the plot. 
-</WRAP> 
-<WRAP column half> 
-{{learn:instrumentation:tutorials:analog-discovery-studio-pattern-generator:plot_bar.png?600}} 
-</WRAP> 
-</WRAP> 
- 
-==== Next Steps ==== 
- 
-/* 
-If voltage values seen in the //Voltmeter// are significantly different from the expected voltage output of the //Supplies//, please calibrate the device by following the **Calibration Guide**. FIXME link 
-*/ 
- 
-For more guides on how to use the Digilent Test & Measurement Device, return to the device's Resource Center, linked from [[reference:instrumentation:start|Instrumentation]] page of this wiki. 
- 
-For more information on WaveForms visit the [[reference:software:waveforms:waveforms-3:reference-manual|WaveForms Reference Manual]].  
- 
-For technical support, please visit the [[https://forum.digilentinc.com/forum/8-scopes-instruments/|Scopes and Instruments]] section of the Digilent Forums. 
  
-{{tag>analog-discovery-studio tutorial}}+{{tag>to-be-removed}}