Correlation

Blogs, Electronics Blog, Other Blogs
You may often heard this word "Correlation" if you had some experience in developing a system with reference to other system.  By reference, I mean you might have been asked to develop a production system from an R&D system as a reference.  Or you might have been asked to develop a multi-line production system from the reference of single-line production system as a reference.  Or within an R&D this term could be used to compare the results of similar systems which should produce similar results.  Nevertheless, correlation is not limited to only such scaled or production systems. So what is correlation? Correlation is a systematic approach to compare the two or more similar systems.  The result of that comparison would give details whether all those system produces similar/same results or if…
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Simple Event Logger for LabVIEW Developers

Blogs, LabVIEW Blog
An event logger is a logger which can log various events or error happening in an application run.  Usually it would be a simple text file or csv file with info about the run details of the application.  An event logger can help in various ways. It can help in identifying the error happened after an operator simply tells you that "Hey you developer! Something went wrong in your application, debug it quickly, production is paused cuz of this issue!!".  In such case, if you have an event logger, you wouldn't need to rerun the app to identify error again.  Just simply looking at the error log can give a hindsight. It can help if the LabVIEW application is completely parallel, then identifying the root-error becomes difficult with lots of…
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Vipassana Meditation Experience

Blogs, Consciousness Blog, Other Blogs
Though I know and do some meditation practices now and then, when I saw this TED talk a few years ago, Vipassana was new to me by then.  I was kind of impressed on how the Vipassana meditation has transformed those people.  I was wondering mainly about "Is it possible to do 10 days of meditation?".  "Doesn't my back pains and breaks if I do that?".  All sort of such questions were in me and other questions too.  Why not give it a try?  Obviously, I didn't find 10-day break during those time.  Somehow this Vipassana was running in back of my mind since then to try out at least once.  And I did it in last 10 days! What I can say about it? Nothing much as of now.  I…
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SPI communication from LabVIEW using FT4222

Blogs, LabVIEW Blog
I've been recently asked to help out with some SPI communication support with FTDI FT4222 device.  For those who don't have idea about this comm., it's one of the famous inter-controller communication method.  The SPI comm. speed with FT4222 can go up to 53.8Mbps.  Really, it's that much speed however you should have board designed for that much speed. Here is a short story on how I did it. I developed low-level LabVIEW drivers which essentially uses the LibFT422 DLL from FTDI.  The 4 important SPI comm., functions to be achieved are SPI Master Read SPI Master Write SPI Slave Read SPI Slave Write After writing the low-level drivers in LabVIEW, I wanted to do the real testing. But to do the real testing, I don't have access to the…
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A Poet Yearns for Realization

Blogs, Consciousness Blog
There are times too when I write some poetic words..!  This is one of the things I'm longing for in this lifetime.  Not to become poetic.!  But for other one which you can comprehend from these stanzas.  If there may shower from universe, then let that may take along.! There is good deep silence in me which I can easily feel and at the same time there is also so much of thoughts, dreams happens inside.I didn't really wanted to write down as poem, but wanted to record this state of mind written down somewhere.  However, naturally it turned out as poetic words. And here it goes... My mind is (so silent) + (so thoughtful). Unknown thoughts are coming like dream, Unknown events are coming like dream. I'm trying to…
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A Unique Momento from Tessolve Team..!

Blogs, LabVIEW Blog, Other Blogs
It's very honourable to receive such an unique momento and team congratulations from Tessolve for the such an unique project. For Tessolve in itself this was not a regular project. I was called to develop a test system for calibrating a sensor from IDT.  It's an 8-sites parallel test executor developed with actor-framework in LabVIEW to make it highly scalable in future.  The project in itself is special in a way that water flows through the test system.  Then don't fail to imagine that water flowing in test floor too.!  Yes, literally hit happened and everyone had to ensure all safe ways to safeguard the other testers in test floor. I had great pleasure in architecting this software in LabVIEW, developing myself and getting help from a team of developers to support…
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Running LabVIEW code through VPN Netowrks

Blogs, LabVIEW Blog
Have you ever executed a huge set of LabVIEW code which resides in other PC but you have to run them in your PC through VPN network channel?  Recently there's been a request from one of our customer to do so.!  The reason is "CONFIDANTIALITY" .  The source code can't be moved to a vendor PC and can only be accessed via their VPN. (more…)
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Recover Files Using Window’s “Previous Version” Property

Blogs, LabVIEW Blog, Other Blogs
Have you ever encountered that due to some bug in your software the imporant file has been deleted or overwritten?  May be that file could be important data logged in the production or could be your old source code.  Do you know that windows has some capabilities to recover those missed files? Recently I encountered such issue.  My own holy software which passed through all unit test cases, somehow misbehaved in the production site.  It adds more awkward moment if customer sees that issue and says "OMG..! My data are lost..!  Where is my data?". A quick google search on recovering windows files gave me a relief that Microsoft Windows in itself has some recovery given that if the restore points are configured in that Windows.  Since it's production PC,…
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Subtle Problems in Multilevel USB Hubs

Blogs, LabVIEW Blog
A project recently got me through tough times.  We have connected almost all instruments using USB and ended up using multilevel USB hubs.  The hardware connection is something like below.  We thought that everything will be fine because All of these USB ports are detected by Windows without any issues The payload of these instruments' data are very low and We're able to test all these instruments in modular level. However we faced some subtle issues which is not lucid at the beginning. (more…)
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