[Discovery 2: Is there a way to have live input to the Wavegen "play" feature?]

Hi @TaliaS

There is no such feature in the WF app but it could be implemented in custom app/script.
AD3 and newer devices have support for in device Scope to AWG routing, analog in to out.

[API Lock Time error when using Analog Discovery2]

Hi @nott1999

Have you tried to disable sleep and usb suspend ?
The erc indicates data transfer error with the device, probably caused by disconnect, like the following message:

[Eclypse z7 fpga peak finding]

Hi @Hamza Oncuer

See the "sample mode" option or called FDwfAnalogInChannelFilterSet for custom app/script.

[Analog Discovery 3 Waveform Sync]

Hi @diligent1

The VI package provides a limited set of features. FGen synchronization is not available in this but in the WF API/SDK.

 

[Counter in Digital Discovery]

Hi @Mavitaka

See the Counter in the Logic Analyzer.

Here 1Hz is generated by one device and captured by another. The difference is the crystal oscillators tolerance.

[Logic Analyzer Not Triggering?]

Hi @cpitman

Make sure you are looking at the correct wire/signal and have ground connection between devices also when using the digital wires.

[Inquiry About Default States and Voltages for AD2 Static Digital I/O Pins]

Hi @Juan05

By default the DIOs are in high impedance. These can be controlled to drive low/high/Z by the digital-out and digital-io functions.
Before the device is powered up the DIOs are pulled to GND by the protection circuit.

[API Lock Time error when using Analog Discovery2]

Hi @nott1999

Isn't this caused by computer sleep or usb suspend ?

 

[API Lock Time error when using Analog Discovery2]

Hi @nott1999

Such disconnect usually indicates USB contact issue or lack of power.
Try using other cable, port, auxiliary 5VDC power supply.

[Multimeter error of the Analog Discovery 3 very high]

Hi @AndreasGroell

If the lower range is sufficient, for better resolution set the Range to 5V
It could be caused the initial temperature drift, it should settle after the device heats up in about 10 minutes.
You could recalibrate the oscilloscope under Settings/ Device Manager.

[Network analysis of a differential pre-amplifier]

Hi @notthetup

Yes. The Network Analyzer has option for differential drive on the two AWG outputs and the Scope inputs are differential.

[DigitalOut_Duty.py]

Hi @Ostin Flores

Your oscilloscope capture looks AC coupled and attenuated.
Do you have proper ground connection between the device and scope ? Could you attach a photo from the setup ?

[Saving persistence data]

Hi @Kuz

 

[Power Supplies are not adjustable]

Hi @Dat Nguyen

 

[Different behavior between Raspberry PI and PC]

Hi @Loic VINET

18 hours ago, attila said:

If not, these are in high impedance which can capture any radiation, specially if wires are connected to it, usually the 50/60 Hz from electrical grid.
In a setup the ground may be floating (power supplies without earth connection like most of USB chargers) or connected to earth (some laptop supplies and most computers), which also influence noise reception.

 

[PPS Trigger visualisation]

Hi @Loic VINET

You are not using the capture properly. You stop after capturing 99% of intended samples, but you should collect until done state is reached.
As mentioned in an earlier reply, try using the much easier to use the 'single' acquisition mode.

[Different behavior between Raspberry PI and PC]

Hi @Loic VINET

Are you driving DIO 31 or 12 or using pull up/down ?
If not, these are in high impedance which can capture any radiation, specially if wires are connected to it, usually the 50/60 Hz from electrical grid.
In a setup the ground may be floating (power supplies without earth connection like most of USB chargers) or connected to earth (some laptop supplies and most computers), which also influence noise reception.

[Output 100Mhz clock from Digital Discovery]

Hi @Mavitaka

The sampling of data lines should be performed on the same clock that the ADC receives, with the required phase to satisfy setup and hold.
If you are using Digital Discovery Sync capture mode you could try using falling edge instead of the rising edge, to have 180* shift.
With normal capture mode sample at least at 400MHz and interpret the data according the clock, like:

[AD2 I2C Slace/Spy Python SDK]

Hi @joe.a

I2C slave is only available in the WaveForms application.
The SDK provides functions for master and 'spy', which can be used sequentially like this: Digital_I2c_SpyMaster.py

[Power Supplies are not adjustable]

Hi @Dat Nguyen

I managed to reproduce the issue, using USB cable + unpowered hub + extension cable + another cable. The analog circuitry is reset or not turning on due to low USB voltage.
The next software version will report such problem.

[Saving persistence data]

Hi @Kuz

The next version will add width/height options, horizontal/vertical header for csv/txt exports, 1bit mono, 8/16 grayscale or 24bit color image options.
Am I missing something ?

[Test probe of 471-058 (Mouser S/O 128132)]

Hi @Lihua

For warranty and replacement contact the support.digilent @ ni.com specifying the Date of Purchase, Seller and Purchase Order/ Web order Number.

[Is it possible to sync the sampling of the Digital Discovery with an external clock?]

Hi @Mavitaka

Only the FPGA or Zynq development boards:
https://digilent.com/reference/programmable-logic/start

[Issues with UART in the waveforms script]

Hi @ctighe

Calling Receive/Receiver function from Script the RX logging in the Protocol/UART will stop.
The Receive function returns the characters received since the previous call or after initialization, calling Receiver.
Try adding wait() before Receive.

[Power Supplies are not adjustable]

Hi @Dat Nguyen

Do you have anything connected to the V+ output ? Can you tell me what you used it for last time?

The device USB power/current is very low, it should be at least about 3W/600mA, and the USB voltage is too low.
The lack of USB power, essentially dropping supply voltage could cause device malfunction.

Try using other USB port, computer, powered hub, 5V DC auxiliary power supply.
The latest software version overcomes a problem caused by low voltage, but the real solution is to provide sufficient power for the device.