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test-and-measurement:guides:waveforms-waveform-generator [2022/03/04 02:22] – Keith M Kolmos | test-and-measurement:guides:waveforms-waveform-generator [2024/02/28 19:56] (current) – Add ADP2230 Support Arthur Brown | ||
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~~TechArticle~~ | ~~TechArticle~~ | ||
- | {{reference: | + | {{: |
===== Introduction ===== | ===== Introduction ===== | ||
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===== Prerequisites ===== | ===== Prerequisites ===== | ||
* A Digilent Test & Measurement Device with Analog Input and Output Channels: | * A Digilent Test & Measurement Device with Analog Input and Output Channels: | ||
- | * [[test-and-measurement: | + | |
+ | | ||
* [[test-and-measurement: | * [[test-and-measurement: | ||
+ | * [[test-and-measurement: | ||
+ | * [[test-and-measurement: | ||
* [[test-and-measurement: | * [[test-and-measurement: | ||
* [[test-and-measurement: | * [[test-and-measurement: | ||
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---- | ---- | ||
===== Guide ===== | ===== Guide ===== | ||
- | ==== 1. Opening the WaveGen | + | ==== 1. Opening the Wavegen |
<WRAP group> | <WRAP group> | ||
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Plug in the Test & Measurement Device, then start WaveForms and make sure the device is connected. | 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' | + | 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' |
**Note:** //" | **Note:** //" | ||
- | **Note:** //The Device Manager can be opened by clicking on the " | + | **Note:** //The Device Manager can be opened by clicking on the " |
</ | </ | ||
<WRAP column half> | <WRAP column half> | ||
- | {{ reference: | + | {{: |
</ | </ | ||
</ | </ | ||
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Once the Welcome page loads, in the instrument panel at the left side of the window, click on the **Wavegen** button to open the //Waveform Generator// instrument. | Once the Welcome page loads, in the instrument panel at the left side of the window, click on the **Wavegen** button to open the //Waveform Generator// instrument. | ||
</ | </ | ||
- | {{ reference: | + | {{: |
</ | </ | ||
---- | ---- | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{learn:instrumentation: | + | {{:test-and-measurement: |
</ | </ | ||
</ | </ | ||
- | ==== 2. Using the WaveGen | + | ==== 2. Using the Wavegen |
//This section details how to configure and run the Wavegen instrument// | //This section details how to configure and run the Wavegen instrument// | ||
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<-- | <-- | ||
---- | ---- | ||
- | == BNC Cables | + | == BNC Oscilloscope Probes |
- | //If your Digilent Test and Measurement device supports BNC cables | + | //If your Digilent Test and Measurement device supports BNC cables, select your device below for instructions on setting up a loopback |
+ | |||
+ | --> Analog Discovery 3 or Analog Discovery 2 with BNC Adapter # | ||
+ | <WRAP group> <WRAP column half> | ||
+ | Connect the [[test-and-measurement: | ||
+ | |||
+ | **Note:** //For this demo, the Scope and Wavegen ground wires are not connected because the two channels share the same ground. While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, to avoid the creation of ground loops that may introduce excess noise to measurements.// | ||
+ | |||
+ | **Note:** //When using BNC Probes, make sure to take note of the probes' | ||
+ | </ | ||
+ | {{: | ||
+ | </ | ||
+ | |||
+ | <WRAP group> <WRAP column half> | ||
+ | Take note of the jumper that selects between AC and DC coupling on the BNC adapter. Either will work to measure the sine wave produced here, but some waveforms may find one setting or the other significantly more useful. | ||
+ | </ | ||
+ | {{: | ||
+ | </ | ||
+ | <-- | ||
--> Analog Discovery Studio # | --> Analog Discovery Studio # | ||
<WRAP group> <WRAP column half> | <WRAP group> <WRAP column half> | ||
- | Connect BNC cables to the Test and Measurement device' | + | Connect BNC cables to the Test and Measurement device' |
- | **Note:** //While BNC probes | + | **Note:** //For this demo, the Oscilloscope and Wavegen ground wires are not connected because they share the same ground. |
- | **Note:** //When using BNC cables, make sure to take note of the probes' | + | **Note:** //When using BNC Cables, make sure to take note of the probes' |
- | **Note:** //The Analog Discovery Studio' | + | **Note:** //The Analog Discovery Studio' |
**Note:** //The Analog Output signal produced by the Waveform Generator is available on both the BNC and MTE cables at the same time.// | **Note:** //The Analog Output signal produced by the Waveform Generator is available on both the BNC and MTE cables at the same time.// | ||
</ | </ | ||
- | {{: | + | {{: |
</ | </ | ||
- | <-- | ||
- | --> Analog Discovery 2 with BNC Adapter # | ||
<WRAP group> <WRAP column half> | <WRAP group> <WRAP column half> | ||
- | Connect a set of BNC minigrabbers | + | Make sure to flip the switch that selects between BNC and MTE input for Oscilloscope Channel 1 towards |
- | + | ||
- | **Note:** // | + | |
- | + | ||
- | **Note:** //When using BNC Cables, make sure to take note of their bandwidth. When these cables are used, the achievable bandwidth is limited by both the probes and by the device. For example, using 1 MHz probes will limit the bandwidth to 1 MHz, even if that is below the Test and Measurement device' | + | |
</ | </ | ||
- | {{: | + | {{: |
</ | </ | ||
+ | <-- | ||
+ | --> Analog Discovery Pro (ADP2230) # | ||
<WRAP group> <WRAP column half> | <WRAP group> <WRAP column half> | ||
- | Take note of the jumpers that select between 0 or 50 Ohm output impedance on the BNC adapter. Either setting will work for the loopback circuit used here, however, some applications may find one or the other more useful. | + | Connect a BNC oscilloscope probe to the Analog Discovery Pro's Oscilloscope Channel 1 connector and a set of BNC minigrabbers to its AWG Channel 1 connector. Connect these as pictured, to form a loopback circuit. Check the input probe' |
+ | |||
+ | **Note:** //For this demo, the Scope and AWG ground wires are not connected because the two channels share the same ground. While BNC Probes are single-ended (as is the AWG hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, to avoid the creation of ground loops that may introduce excess noise to measurements.// | ||
+ | |||
+ | **Note:** //When using BNC Probes, make sure to take note of the probes' | ||
</ | </ | ||
- | {{: | + | {{/test-and-measurement/ |
</ | </ | ||
<-- | <-- | ||
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--> Analog Discovery Pro (ADP3450/ | --> Analog Discovery Pro (ADP3450/ | ||
<WRAP group> <WRAP column half> | <WRAP group> <WRAP column half> | ||
- | Connect a BNC oscilloscope probe to the Analog Discovery Pro's Oscilloscope Channel 1 connector and a set of BNC minigrabbers to its Wavegen Out Channel 1 connector. Connect these together, | + | Connect a BNC oscilloscope probe to the Analog Discovery Pro's Oscilloscope Channel 1 connector and a set of BNC minigrabbers to its Wavegen Out Channel 1 connector. Connect these as pictured, to form a loopback circuit. Check the input probe' |
- | **Note:** //While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, | + | **Note:** //For this demo, the Scope and Wavegen Out ground wires are not connected because the two channels share the same ground. |
+ | |||
+ | **Note:** //When using BNC Probes, make sure to take note of the probes' | ||
</ | </ | ||
- | {{reference: | + | {{reference: |
</ | </ | ||
<-- | <-- | ||
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--> Analog Discovery Pro (ADP5250) # | --> Analog Discovery Pro (ADP5250) # | ||
<WRAP group> <WRAP column half> | <WRAP group> <WRAP column half> | ||
- | Connect a BNC oscilloscope probe to the Analog Discovery Pro's Oscilloscope Channel 1 connector and the scope probe or minigrabbers to the test signal and test signal ground pins on the front of the ADP5250 to create | + | Connect a BNC oscilloscope probe to the Analog Discovery Pro's Oscilloscope Channel 1 connector and the BNC minigrabbers to the AWG Channel 1 connector |
- | **Note:** //While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, | + | **Note:** //For this demo, the Scope and AWG ground wires are not connected because the two channels share the same ground. |
- | **Note:** //When using BNC Probes, make sure to take note of the probes' | + | **Note:** //When using BNC Probes, make sure to take note of the probes' |
</ | </ | ||
- | {{: | + | {{: |
</ | </ | ||
<-- | <-- | ||
+ | |||
---- | ---- | ||
<WRAP group> | <WRAP group> | ||
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</ | </ | ||
- | {{ reference: | + | {{: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{ :learn: | + | {{:test-and-measurement: |
</ | </ | ||
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Regardless of the device, if BNC cables are used for input, make sure that the attenuation factor setting in WaveForms for Oscilloscope Channel 1 (pictured to the right) matches the setting of the probe. | Regardless of the device, if BNC cables are used for input, make sure that the attenuation factor setting in WaveForms for Oscilloscope Channel 1 (pictured to the right) matches the setting of the probe. | ||
</ | </ | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
<-- | <-- | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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=== 2.6 === | === 2.6 === | ||
- | Click the Run button in the control bar near the top of the window to begin output the signal. | + | Click the Run button |
</ | </ | ||
<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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=== 2.7 === | === 2.7 === | ||
- | Back in the Wavegen instrument, click Stop ({{:learn: | + | Back in the Wavegen instrument, click Stop ({{:test-and-measurement:analog-discovery-3: |
**Note:** //An idle channel will still output some amount of voltage, which is determined by the offset parameter by default. Unchecking enable at any point will stop the signal if it is running, disable the channel and set its output voltage to 0 V.// | **Note:** //An idle channel will still output some amount of voltage, which is determined by the offset parameter by default. Unchecking enable at any point will stop the signal if it is running, disable the channel and set its output voltage to 0 V.// | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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---- | ---- | ||
- | ==== Note: Analog Discovery Pro (ADP3450/ADP3250) Sample Rate ==== | + | //Digilent Oscilloscopes feature the ability to select from a range of sample rates, which affects many instruments. Click the dropdown below to learn how to use this feature.// |
- | {{section> | + | --> Modify the Digilent Oscilloscope System Clock Rate # |
+ | <WRAP group> <WRAP column half> | ||
+ | To access this setting, first open the Device Manager, which can be found in WaveForms' | ||
+ | The system clock rate itself can be changed by opening the Options dropdown, while the Digilent device is selected in the list of devices. By changing the selection in the " | ||
+ | |||
+ | **Note:** //Changing the system clock rate changes the set of sample rates that can be achieved by the Digilent Oscilloscope' | ||
+ | </ | ||
+ | {{ : | ||
+ | </ | ||
+ | <-- | ||
+ | |||
+ | ---- | ||
+ | ==== Note: Analog Discovery Pro (ADP5250) Wavegen Output Filter ==== | ||
+ | |||
+ | //The Analog Discovery Pro (ADP5250) features a switchable filter on the AWG output. Click the dropdown below to learn how to use this feature.// | ||
+ | |||
+ | --> Enable or Disable the ADP5250' | ||
+ | <WRAP group> <WRAP column half> | ||
+ | This filter can be enabled or disabled through the use of the dropdown on the right side of the control toolbar. It can be set to Auto, On, or Off. | ||
+ | </ | ||
+ | {{: | ||
+ | </ | ||
+ | <-- | ||
+ | |||
+ | ---- | ||
==== Note: Using Multiple Instruments ==== | ==== Note: Using Multiple Instruments ==== | ||
The //Waveform Generator// instrument can be used with other WaveForms instruments. Using multiple instruments at the same time is helpful in a wide variety of situations. One example would be to use the //Waveform Generator// to stimulate a circuit under test, the //Power Supplies// to provide power to the circuit and view the response with the // | The //Waveform Generator// instrument can be used with other WaveForms instruments. Using multiple instruments at the same time is helpful in a wide variety of situations. One example would be to use the //Waveform Generator// to stimulate a circuit under test, the //Power Supplies// to provide power to the circuit and view the response with the // | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP group> <WRAP column half> | <WRAP group> <WRAP column half> | ||
- | The **Synchronization** dropdown allows the user to select how the Wavegen Channels operate in regards to each other. Selecting // | + | The **Synchronization** dropdown allows the user to select how the Wavegen Channels operate in regards to each other. Selecting // |
</ | </ | ||
- | {{ :learn: | + | {{:test-and-measurement:analog-discovery-3:waveforms-wavegen-triggers-sync.png?nolink&600 |}} |
</ | </ | ||
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**Edit** lets the user copy or swap output signal configurations between available channels. | **Edit** lets the user copy or swap output signal configurations between available channels. | ||
</ | </ | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
<WRAP group> | <WRAP group> | ||
<WRAP column half> | <WRAP column half> | ||
+ | |||
=== 3.2 The Preview Plot === | === 3.2 The Preview Plot === | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
</ | </ | ||
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<WRAP column half> | <WRAP column half> | ||
- | {{:learn: | + | {{:test-and-measurement: |
+ | |||
+ | </ | ||
+ | </ | ||
+ | |||
+ | /* | ||
+ | <WRAP group> | ||
+ | <WRAP column half> | ||
+ | |||
+ | FIXME The " | ||
+ | |||
+ | </ | ||
+ | <WRAP column half> | ||
+ | |||
+ | {{: | ||
</ | </ | ||
</ | </ | ||
+ | */ | ||
==== Next Steps ==== | ==== Next Steps ==== | ||
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For more information on WaveForms visit the [[software: | For more information on WaveForms visit the [[software: | ||
- | For technical support, please visit the [[https:// | + | For technical support, please visit the [[https:// |
{{tag> | {{tag> |