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Everything posted by attila
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acquisition duration vs trigger frequency
attila replied to Loic VINET's question in Test and Measurement
Hi @Loic VINET Could you attach or send me the configuration or the entire script ?- 6 replies
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- acquisition duration
- trigger frequency
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Need ADP3450 spare power supply (19V 3.4A)
attila replied to Blue21's question in Test and Measurement
Hi @Blue21 The supply brick is ATS065T-P190 but the tip of the connector may be a bit longer than the standard version. The thresholding in ADP3X50 is 18.2V .. 19.8V I'm forwarding your request to be for sale. Edit: the connector pin is 1.65mm -
Hi @miketranch Newer WaveForms version can control two identical devices, doubling Scope, AWG and Digital channels. It is recommended to be used with AD3, ADP3X50 or newer devices which support clocking IO. With AD1, 2... the clock is not synchronized. It is not supported with ADP5250 and DD. See in WFs / Help tab, Device Manager and AD3 info.
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Technical Assistance Required---SO: 119593---Part number: 410-395 (DPS3340)
attila replied to UNM's question in Test and Measurement
Hi @UNM This is likely a mechanical problem since the voltage readback is a feedback from the connector's PCB. The banana connector may got loose on the small vertical PCB. In this case you could take it apart and fasten the connector. -
Hi @dns Such is expected. For more accurate measurement Scope/Time/Average or Average/Averaging in FFT, Spectrum, Network and Impedance Analyzer can be used.
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Using an external trigger with Digital Discovery Pattern Generator
attila replied to k_b's question in Test and Measurement
Hi @k_b It is probably trigger on signal ringing, glitch on the falling edge. Zoom in, increase the sample rate to have a better view. -
Hi @scott.moore The alternate trigger to work with 5-10ms seems to require the Scope interface to be invisible. tt1.dwf3work Having this in from adds a few milliseconds of delay, so it may not catch the next trigger. Such method can be implemented with better performance in custom app/script. And this is a solution with data processing in Script: tt2.dwf3work
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Hi @matthew-aedapt The Scope.DigitalChannels.I2S.events is an array with the interpreted values from the current capture, .eventStamps the associated relative time.
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- analogue discovery 2
- digital discovery
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Hi @scott.moore What is the distance between the triggers ? What measurement precision do you need ? The software timer only has a few milliseconds of resolution/precision. If the distance is less than a few milliseconds, trigger on event 1 use a script to look for event 2 If it is more, you can configure alternate trigger and use the device trigger date&time difference for distance, for device system frequency resolution (8-10ns) You can also use the sample time (trigger crossing interpolation) difference for higher resolution measurement.
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Hi @matthew-aedapt You will probably need to make some settings to suit your needs, such as the I2S options: i2s.dwf3work
- 10 replies
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- analogue discovery 2
- digital discovery
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Any possibility of an analog meter display for voltmeter
attila replied to korn's question in Test and Measurement
Hi @korn Thank you for the request. -
Help Needed: Configuration Issues with Analog Discovery 2 Units
attila replied to pieb's question in Test and Measurement
Hi @pieb It could be something damaged in the analog circuitry, draining too much power after the analog rails are enabled and the current limitation shuts down the device. For warranty and replacement contact the support.digilent @ ni.com specifying the Date of Purchase, Seller and Purchase Order/ Web order Number. Otherwise, here you have some repair tips: -
Hi @matthew-aedapt Than would be a bit complicated to do. Alternatively to visualize analog and digital at the same time, use the Scope with Digital and a slow input signal. With tall digital row the data is also represented as analog signal and the digital data can be used in Math channels.
- 10 replies
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- analogue discovery 2
- digital discovery
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generate customized signal in waveforms with python
attila replied to gvo's question in Test and Measurement
Hi @gvo See the in WF SDK/ manual.pdf and samples/ py/ AnalogOut_Sine.py AnalogOut_Custom.py ... examples Edit: The WF SDK/ samples/ dwfcmd/ command line application may also be useful for you. -
Final pydwf release due to new Digilent mandatory-account policy
attila replied to a question in Test and Measurement
Hi @reddish I'm sorry to hear that. To avoid registration, the direct release links can be found under the Previous Versions and the latest beta version can be downloaded from: -
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Hi @spillari Configure the SPI interpreter options in the Logic Analyzer to be 12bits. Use CmdRead command, you can also use the SPI functions from the Script tool...
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What connector is used in the Digital Discovery cables?
attila replied to BobA's question in Test and Measurement
Hi @BobA Unfortunately we don't have part number for the housing in the assembly: -
AD3 scope feature reduction in signal height? pydwf. Switched voltage range?
attila replied to torbos's question in Test and Measurement
Hi @torbos Could this be related to the AD3's Scope channel low/high range relay toggle ? Most of the WF SDK examples mention using a settle delay after adjusting the offset/range or opening the device, for example: dwf.FDwfAnalogInConfigure(hdwf, c_int(1), c_int(0)) # configure time.sleep(1.0) # wait dwf.FDwfAnalogInConfigure(hdwf, c_int(0), c_int(1)) # start For the relays about 50ms delay is needed. AD3 high to low range ~20ms : AD3 low to high range ~50ms : AD3 offset settle ~5ms : AD2 offset settle ~600ms : -
What connector is used in the Digital Discovery cables?
attila replied to BobA's question in Test and Measurement
Hi @BobA female: Sullins PPTC062LJBN-RC male: Sullins PBC06DBAN