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Everything posted by attila
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Change of Waveforms - Protocol - SPI - custom - First bit
attila replied to Choon Shin's question in Test and Measurement
- 4 replies
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- analog discovery2
- spi
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Hi @Dr.Zool Maybe AD3 V+ is not providing 5V or there is a problem with the IA adapter like one of the relay drivers is bad or it consumes a lot of power and the voltage drops, in this case it should also heat up... I was only able to reproduce some relays to not switch, just by lowering the V+ voltage from the software code. Please check the V+ voltage in the Supplies tool: without adapter (V+ controlled from Supplies) and with adapter connected (V+ controlled by IA interface). Also the power consumptions (USB Current) should not increase by much with the adapter. You could also verify the V+ voltage (top 3rd/4th pins) on the header or the C3 capacitor on the adapter.
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analog discovery 3 Waveforms SDK throwing errors with static supply tests
attila replied to gabagool's question in Test and Measurement
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Digital Discovery - Script Question 2
attila replied to engrpetero's question in Test and Measurement
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NEW ADP 3450 Still having issues "DstmTransfer failed ERC: 3077"
attila replied to bfpa40's question in Test and Measurement
Hi @Vladimir F On ADP3X50 the USB Vbus is only used for host detect, so this has no (<mA) power requirements. Dropping or fluctuating Vbus voltage could cause the ADP to sense USB host disconnect, resulting communication error in the software. The source of such problem could be bad USB cable or contact issue. Eventually high currents passing through the USB cable GND caused by 'bad' supplies, like having different earth connections for the two supplies. Such problem could damage devices. For together used devices is recommended to connect supplies to adjacent sockets or the same extension cord. The earlier post in the same topic: -
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Set the Trigger on the Wavegen Channel 2 to "Scope" via the SDK in Python
attila replied to Hansi's question in Test and Measurement
Hi @Hansi The app's "no synchronization" just hides these options to simplify the interface. Setting wait/run is sufficient in the custom app/script and for synchronized mode use FDwfAnalogOutConfigure(hdwf, -1, 1) or FDwfAnalogOutMasterGet FDwfAnalogOutTriggerSourceSet(trigsrcAnalogIn) trigger on oscilloscope T0 The trigsrcDetectorAnalogIn looks for trigger condition on the analog input. -
How to log multiple UART from Logic Analyzer
attila replied to mms14's question in Test and Measurement
Hi @mms14 You could record 10 minutest with the WF application and export, or write a custom application which decodes the streamed data.- 9 replies
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- analog discover 3
- digitalin
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Hi @Hamza Oncuer Have you tried the following:
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[BUG] Waveforms 3.21.3 UART Protocol analyser does not work
attila replied to gabagool's question in Test and Measurement
Hi @ZdenoQC @gabagool The Protocol/Spy for AD2,3 will be fixed in the next version. Thank you for the observation. -
Frequency Measurement Using Analog Discovery 2
attila replied to Aghiles's question in Test and Measurement
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Hi! Questions about Analog Discovery 3
attila replied to Charlotte123's question in Test and Measurement
Hi @plswelcomeroh See your original topic: -
Hi @plswelcomeroh The maximum leakage voltage when the V+ is shut down is 641mV and with 1k dummy load max is 67mV. The supply circuit's Schottky diode reverse current further reduces this voltage, depending on temperature. On a cold device I see 500mV and after it heats up only 50mV.
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Hi @bfpa40 See the Help tab: The USB COM (serial port) provides interface boot process and to Linux terminal at 115.2 kbps, 8 data bits, 1 stop bit, no parity. On Linux the serial port is like: /dev/ttyUSB# and on Windows see the COM port number in Windows Device Manager under Ports (COM & LPT).
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How to log multiple UART from Logic Analyzer
attila replied to mms14's question in Test and Measurement
Hi @mms14 You can use Logic Analyzer / Export/ Source: All Events The format can be configured for the interpreter. The Protocol/UART only supports 1 or 2 channels.- 9 replies
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- analog discover 3
- digitalin
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(and 1 more)
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Using Analog Discovery for temperature measurement using a diode
attila replied to Peter Salmon's question in Test and Measurement
Hi @Peter Salmon The Analog Discovery 2,3 have V+/V- voltage sources and 2 AWG channels. The V+/- can also be used as slow AWGs. The DPS3340 has 2 positive and 1 negative voltage/current current sources which can be also used as slow AWGs either in voltage or current mode. The output capacitance is 200-500uF. See: https://digilent.com/reference/test-and-measurement/analog-discovery-2/start https://digilent.com/reference/test-and-measurement/analog-discovery-3/start https://digilent.com/reference/test-and-measurement/discovery-power-supply-3340/start -
Logic Detector as trigger in Scope. Is it possible?
attila replied to m72's question in Test and Measurement
Hi @m72 The given names of the signals are not updated automatically when changing inputs or devices. The next sw version will update them if they start with the default names, DIO, DIN or Sc. Edit: Only the enabled analog channels are digitized. -
Suitability of AD3 as digitizer for the vhs-decode project
attila replied to joebobjoe's question in Test and Measurement
Hi @joebobjoe No, 10MHz on 1 channel is 10Msps. The samples size is always 16 bits/ channel, 14 bit at up to 125MHz ADC + 1 or 2 bits for lower rates from averaging of multiple ADC conversion. -
Hi @dmangione The play and record are limited by the USB/ethernet streaming rate if the length exceeds the device buffer size. On Eclypse oscilloscope capture buffer 256Mi samples total and AWG carrier buffer / channel 64ki (1 AWG Zmod w 2ch) or 32ki samples (2 AWG Zmods w 4ch)
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Generation of sin square wave with waiting time.
attila replied to ohkubo's question in Test and Measurement
Hi @ohkubo Use X from 0 to 1 : -pow(sin(PI*X),2) or X from 0 to 0.5 : -pow(sin(2*PI*X),2) -
Logic Detector as trigger in Scope. Is it possible?
attila replied to m72's question in Test and Measurement
Hi @m72