[Waveforms With Touchscreen Monitor?]

Hi @Old Printer

The application supports some touch interactions but it is not thoroughly optimized for such.
After the following post it was tested and improved.

 

[How can we get vertical lines for cursors in new version]

Hi @prudhvichitturi

There is no horizontal quick measure but I can add such, and also more options for persistence.

[How can we get vertical lines for cursors in new version]

Hi @prudhvichitturi

Horizontal and vertical cursors, and quick measure should be available.
Which software version are you using ?

[How to use external sync signal for AD devices?]

Hi @Xiaohu

The Scope/ Time/ Options/ Sampling/ Clock available with most of the devices (AD1,2,3...) is just a sampling condition which can be asynchronous to the ADC.

Real reference clock IO is available for AD3, ADP3X50

[One Digital Discovery as pattern generator and logic analyzer]

Hi @Effedipi

The pulls by default are not enabled and are not activated in the example script either.

[Custom waveform that exceeds the buffer size - Python]

Hi @Ergest

See the following example: AnalogOutIn_PlayRecord2.py

Your posted code is not complete, it can't be run as it is. Some observation: line 55 the preceding configure is reset by FDwfAnalogOutReset, line 94 there is no need to reconfigure/restart FDwfAnalogOutConfigure

[One Digital Discovery as pattern generator and logic analyzer]

Hi @Effedipi

Change the lines 24+ to:
print("Opening first device")
dwf.FDwfDeviceOpen(c_int(-1), byref(hdwf))
# device configuration of index 3 (4th) for Analog Discovery has 16kS digital-in/out buffer
#dwf.FDwfDeviceConfigOpen(c_int(-1), c_int(3), byref(hdwf)) 

[4 channels usb oscilloscope]

Hi @Md Fahim Al Fattah

See the following for WaveForms Dual device control https://digilent.com/blog/extending-channel-counts-by-using-dual-mode/
You can also find 4 channel devices: https://digilent.com/reference/test-and-measurement/start 

[Programmer for Coolrunner II]

Hi @Simon Koops

The Coolrunner II has onboard USB-JTAG programmer which can be used with Adept app.
The Digilent USB-JTAG programmers can also be used with Adept app to program it.

[New Analog Discovery 2, PLL not Locked]

Hi @MarcosOrzari

Probably the powering through USB is insufficient.
Try using other USB port, powered hub, auxiliary 5VDC supply or other computer.

The latest software version has additional detection for such situations.

 

[Analog Discovery 2 anymore not recognized]

Hi @AD2 User

The Windows Device Manage refreshed automatically, or with the "Scan" tool button in front, or Action/ Scan for...

This is strange since the LED in the AD2 only activated, starts flashing after software/application connection, after the device is detected, 'firmware' download and configuration. 
Have you tried the device with another computer ?

[Creating a pulse signal (Digital output) on the falling edge of an input signal in Patterns Window]

Hi @Yami

Using the Logic Detector as trigger source, the trigger to out delay is 180ns
DIO-0 33MHz input and DIO-1 20ms output

 

Wiring the 33MHz signal to trigger input, the trigger to out delay is 110ns

[One Digital Discovery as pattern generator and logic analyzer]

Hi @Effedipi

Play&Record from file is the AnalogOutIn_PlayRecordStereo.py

[One Digital Discovery as pattern generator and logic analyzer]

Hi @Effedipi

For up to digital-out device buffer size samples (32768 for DD) the simpler method can be used like in DigitalIn_Acquisition.py DigitalOut_Custom.py ... examples
For more samples with Digital Discovery see WF SDK/ samples/ py/ DigitalDiscovery_PlayRecord.py ...

[Analog Discovery 2 - OFDM application]

Hi @Ergest

FDwfAnalogOutNodeFrequencySet for standard and custom signals expects waveform frequency and not sample rate, you probably want c_double(fs/cSamples)
FDwfAnalogOutRepeatSet for existing devices it supports value up to 32768 or use 0 for infinite repeat
 

[AnalogIn with DigitalOut Trigger]

Hi @Hellsmoke

See the following example test1.py and the manual and the other available examples.

[Analog Discovery 2 suddenly not recognized by USB]

Having a powerful external supply with common computer GND/0V and (accidentally) connecting a supply output to AD2's GND will be a short circuit that can damage the device.

[Eclypse z7 fpga peak finding]

I think the current min/max (peak) sampling is sufficient.

[Analog Discovery 2 suddenly not recognized by USB]

Hi @lucasj

Could you test it with another computer ?

If it is still not working, for warranty and replacement contact support.digilent@ni.com, specifying the Date of Purchase, Seller and Purchase Order/ Web order Number.

To prevent further problems, could you describe the test setup ? How was the device/circuit under test supplied ? Did it had the same ground connection as the AD2 and computer, ground wired from circuit to AD2 ? Independently supplied device can have different ground voltage levels, like due to faulty earth connection, or connecting external power supply rail to AD2 ground which is connected to computer over USB can damage the devices.

[One Digital Discovery as pattern generator and logic analyzer]

Hi @Effedipi

The I2C master (with clock stretching) and slave mode can work up to 2.5MHz but this requires stronger pullups.
Without clock stretching option it can theoretically work up to 25MHz but this may not respect the timings. This mode simply generates the pattern without waiting on SCL to go high or handshake.

[Eclypse z7 fpga peak finding]

Hi @Hamza Oncuer

No.

[Analog Discovery 2 vs Raspberry Pi 3]

Hi @scootergarrett

If you have problem accessing the device after Linux update, reinstall digilent.adept.runtime to make sure the udev rules are properly set. This is needed for Analog Discovery 1,2,3 and Digital Discovery.

[One Digital Discovery as pattern generator and logic analyzer]

Hi @Effedipi

Yes, the Patter Generator and Logic Analyzer can work in parallel in the device, using common and/or DIO DIN lines.

The Protocol uses the Pattern Generator for transmission/write (driving the DIO lines) and the Logic Analyzer device resources for reception. With the "Logic Analyzer" option the reception is disable, the Logic Analyzer can be used to interpret the transfer/reception and to verify signal timings.

[PC Monitor goes off for some seconds when I connect ground connector]

Hi @Christian Lindenblatt

It could. This could indicate a grounding problem.
The AD2 ground is connected to the PC over USB cable.
When working with multiple device make sure these use the same earth connection, like supply these from the same socket.
For protection (and noise filtering from PC) an USB isolator can be used.

[Eclypse z7 fpga peak finding]

Hi @Hamza Oncuer

It is possible with custom project, using EclypseZ7 as development board, but not with WaveForms.

I don't think it should bother you that only half of the samples are actually used. WF provides min/max pairs but you can capture up to 256Mi samples or 'unlimited' at lower rate (<20Msps) using streaming/recording. The WF app limits the captures to 200M samples / channel.