WaveForms Cycle Measurement not outputting correctly in script

[br3]

Hi all, 

Does anyone know how to print out cycles measurement in logic analyzer using Waveform java scripts? I managed to print out the data for frequency measurement but I'm not sure why the same function does not work well for cycles......

Additional question: Does anyone know if it is possible to print out JTAG TDO data using script? TDO data should look like what is received in the protocol interpreter for JTAG. I managed to create a DO signal line and I can export the data but because it is sampling at a fast rate, I get many duplicates unlike the TDO data printed on the protocol interpreter.

 

Edited July 22 by br3

[attila]

Hi @br3

Which software version are you using ?
The JTAG TDO data can be accessed with Logic.Channels.JTAG.DO.events or using the Protocol/JTAG

 

[br3]

Hi @attila

Thank you for the TDO method, it worked! I am currently using Waveforms version 3.20.1, is that why "cycles" did not work?

I would like to do some automation with other instruments using C++ and would like to sync the code with my discovery tool. Would you recommend using waveforms sdk instead of scripting? I was looking at the reference manual for sdk, it doesn't seem to include JTAG protocol. Does sdk also include the GUI features like scripting whereby you can do configurations on the gui and the script will take the gui settings into account? 

Edited July 22 by br3

[attila]

Hi @br3

Try updating the software, 3.20 is quite old.
JTAG interpreter is only available in the WaveForms app. It could be implemented with custom application like the SPI is in DigitalIn_Spi_Spy.py

[br3]

Thanks! @attila 

[br3]

Hi@attila

Do you know if there is a c++ code to run existing scripts and to read script output? Is socket programming possible to connect script with a c++ code? 

 

[attila]

Hi @br3

You can use file io, serial port, named pipe, tcp to interface Script with other applications, devices... execute/call external apps.
The application has arguments to load and run scripts, or use the eval function to execute script in script.

[br3]

Thank you! @attila

[br3]

Hi @attila

Do you have a sample code of how TCP functions work in waveforms scripting? Thanks. I am trying to use Waveforms script as the server

Edited July 29 by br3

[attila]

Hi @br3

See the Example menu and Help tab.

[br3]

@attila Thank you! 

[br3]

@attila  Hi,

I tried to run synchronous socket client functions in C# to connect with Waveform script server. However, it seems that there are times the data sent is not received on the server side(the same code also works sometimes). Would you recommend using async or sync on C#? Do you know if it is required for me to close the server after one run or can I just keep it listening without closing it until my c# code is finished. 

 

Edited July 31 by br3

[attila]

Hi @br3

I don't know what and how are you transferring.
With such communication if the transfer length is variable you should pass a header, containing message length and identification if you need such. The length is needed for the receiver to know how much more data to expect. This for proper message framing.

[br3]

@attila Thank you! I managed to resolve the syncing problem. 

[br3]

@attila Do you know if the Tcp server on waveform script has a timeout? Are there keepalive functions to keep server open as long as code is running? 

[attila]

Hi @br3

The tcp.listen() calls QTcpServer.listen, accepting socket connections in the background without timeout until close() is called.
I think keepalive is not enabled but the next software version will add argument for this in connect() function. It will also add isConnected() and waitForNewConnection() functions.

[br3]

@attila I see, thank you. Excited for the new update! 

[attila]

Hi @br3

 

[br3]

Hi @attila

Does this new update has additional features pertaining to TCP? 

 

[attila]

3.23.10 see keepalive option and new functions waitForNewConnection, waitAvailable

[br3]

@attila Thank you! 

[br3]

Hi @attila

Do you know what are the script functions for setting base and position in the Logic Analyser window. I saw there is .Time.Position.value. Does it help to set or get position?

[attila]

Hi @br3

Yes, Scope.Time.Position.value
See Help tab, see toolbar tip, use picker, use Ctrl+Space

[br3]

@attilaThanks:) 

[br3]

Hi  @attila 

Do you know if there are any script functions to control the samples number and delay values within the pattern generator. 

[attila]

Hi @br3

Patterns.Channel.NAME.custom = [your array]