attila

Hi @AlexanderGDean
This crosstalk could between the wires which act as antennas.
This could be highly reduced by shielded cables but twisted wires also help a lot.
Twist the positive and negative scope inputs together and for single ended usage connect the negative to the ground near the test point; twist each of the used digital, trigger, wavegen and supply wire with ground.

Hi @Paul45011
Such trigger sequencing is not supported but it could be done with software validation.
With a setup and Script like this:


Logic.run(); while(Logic.wait()){// exit on Stop var data = Logic.Channels.Bus.data; if(data[data.length-1] != 0){ // last sample not zero print("last Bus sample not zero"); break; } }   
or with conditional export:

if(Index > Maximum) return; var data = Logic.Channels.Bus.data; if(data[data.length-1] == 0) return; // do not save Logic.Export("~/Desktop/logic/acq"+Index+".png"); Logic.Export("~/Desktop/logic/acq"+Index+".csv", "Raw Data"); Index++;  

Hi @Tamires
The analog-in-record should work at up to 1-2MHz and digital-in-record around 2MHz but it depends on the system.
The sync rate is specified by the external clock rate.
See the earlier post:
 

awww, there is no contact or resistance, like is not connected u.u
Put a ground connector in the note and my hand helps to reduce the interference.

Hi @bremenpl
The state option is available in newer software version:
 
 

Thanks a lot Attila, all is fine.
Olivier

Thanks @attila, all working now. Turned out the FPGA only outputs signals when a particular register is set properly (doh!). After I confirmed the DD was working properly (using your test setup above), is was easy to backtrack to why there was no data coming in.
 
Thanks

Success! 
What you said about the trigger made me second guess how patterns was triggering the scope. I probed that clock signal with channel 2 and it's collecting the data smoothly
We were using these settings before, with patterns selected as the trigger in the scope

 
In any case, we're up and running again, thanks for the support
-Mike

Hi @Paul45011
The input logic threshold can be adjusted in the Supplies tool.
You could test it by connecting DIO to DIN line, generate signal with Pattern Generator on DIO and capture it with Logic Analyzer on DIN line.

Hi @johannsi99
The record streams data over USB which limits the sample rate to about 1-2MHz.
Use the default (single) acquisition mode to capture up to device buffer (8-16Ki) samples at up to maximum sample rate (100MHz).

Hi @Toberius
Not the IA Adapter but the Analog Discovery device is listed in the Device Manager.
The Adapter can be selected in the Impedance Analyzer as Order option:
https://digilent.com/reference/add-ons/impedance-analyzer/getting-started-guide#settings

Thank you .

Hi @Psoas
The IC20 switch limits the initial USB power consumption. Bypassing it will exceed the initial/unconfigured USB spec of 100mA (~50mA with IC20 and ~220mA with bypass) but I'm unaware of any host using such limitation so the device should work normally with the bypass.
https://digilent.com/reference/test-and-measurement/analog-discovery-2/hardware-design-guide#analog_supplies_control
http://www.analog.com/en/switchesmultiplexers/analog-switches/adp197/products/product.html
 

Sorry for the late response. I tried linux and windows, and it was a same result. I also tried programming and using 5V power supply, that didn't work.
I will contact support.digilent at ni.com.
Thank you so much,
Adonay
 

Hi @Tamires
Use the following shown in some examples:
# 2nd configuration for Analog Discovery with 16k analog-in buffer
#dwf.FDwfDeviceConfigOpen(c_int(-1), c_int(1), byref(hdwf)) 

Perfect! - thanks!

Thank you for the answer.
 

That's helpful :)

Hi @A_Beta
AD2 and ADP3 can capture up to 100/125MHz. The Scope can be used in mixed mode by adding Digital channels.
The AD2 can record/stream up to around 1MHz. Depending on computer and available USB bandwidth.
The ADP3 in standard can record up to 128MiS@500MBps, for 2 Scope and digital channels about ~40MHz rate, for 4+digital ~20MHz.
The digital bandwidth usage with data compression depends on signal activity rate.
As a last minute change, in the latest version the digital rate/samples adjustment is enabled for recording but it is still automatically set to analog values if these are changes. So adjust digital rate/samples under Options every time before starting a record and make sure it is not longer than the analog time. I'll try to optimize this in the next versions.

Hi @WojtekO
For custom board you could use 3.3V relays so you don't have to boost to 5V.

Hi @WojtekO
To test this I've hooked the IA module to ADP3 with some wires.
I let the relays driven by 3.3V which is much lower than the 3.75V relay spec but it is switching.



 

Hi @attila
Great job!
i'm going to draw a adapter board !

Thank you so much for this beta version. Best regards. 

Hi @WojtekO
It will be in the next version.
The AD IA Adapter could be hooked to ADP3X50 using the DIOs (4-7, 12-15), 2 Scope, 1 Wavegen channel and 5V from the USB connectors at the back.
https://digilent.com/reference/_media/reference/instrumentation/analog_discovery_impedance_analyzer_sch.pdf
To fine tune the setup use a pF capacitor, Ref 1M and adjust the Options/ ProbeCap to have a flat response.

Hi @Kota Uchida
See the application Help and examples.