Best way to create a large project to test an LED Driver
Hello experts,I have been at this for almost a year, part time. I've rewritten it several times from the ground up as I learned. Small samples are It seems like this should be a standard large project...
View ArticleDoes creating queue/enqueue/dequeue/release queue work inside an FGV
I intentionally left my computer at work in order to force myself into some pad+pencil planning, so I can't test this. But I'm dying to know. Can I make an FGV where the enum selects cases like...
View ArticleTrying to implement Butterworth filter to remove noise from power lines in...
Hi,Please see the attached VI I am using to collect data from my experiments. There is significant noise in the signal. I reached out to NI and they informed me that the noise is in 50-60hz frequency...
View ArticleHow to find the maximum value of read data.
Hello Everyone, I am writing data to a text file at 1000 samples/sec for approximately 20 minutes. There are five columns in the text file and I want to be able to determine the largest values in...
View ArticleVISA: (Hex 0xBFFF006C) An overrun error occurred during transfer. A character...
i am getting this overrun error with my serial communication with VISA .. my device is sending me a frame of 1640 bytes /sec , i perform operation on 82 bytes that gives me 20 packets .. but some how...
View ArticleHow to build array for every 2 iterations in while loop
Hi,In one cycle of operation, there are two steps. I have 2 case structures inside while loop. one case structure will be true for each step. I need to build array , so that two case structure values...
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Malleable VIs with parameters
Hi All,I have a need of parametrizing the malleable VI, or to be more generic any inlined SubVI.The basic question is: is it possible to access the BD constants of the malleable (inlined) SubVI (with...
View ArticleSaving data in USB in the real time system
Hallo everyone,I am trying to save my data in USB in the real time system VI. My data is coming from the FPGA around 2 KHz. So in the real time system I put a Timed loop with source type- 1MHz clock...
View ArticleExporting Data with Multiple Columns in excel using Write Delimited...
Hello, I am trying to export data into an excel file and I found that it is possible by using the Write Delimited Spreadsheet.vi. However, I would want to insert the data in two columns as shown in the...
View ArticleGlobal Variables and X-net problems?
Hello,I made a program that take some frames from a .dbc file and change some parameters in it. I save it into a global variable,but when i use this variable the values are not correct(actually they...
View ArticleHow to make instrument drivers using dll file of the instrument control...
Hello everyone,I am still new to labview and I am currently in need to make Labview drivers to control our injection set(ORTS32)..I tried to build VI's to control this instrumentbut I am still...
View ArticleMaximum number of shift registers/feedback nodes per a loop
Hello,I'm working on porting code from an embedded system to LabVIEW. I need over 60 variables to be held in memory (via either shift register or feedback node). I use both as I read they gave same...
View ArticleCalculate frequency of each pulse from encoder
I am trying to calculate the frequency from an encoder, but I want the frequency for each pulse, and not just the average frequency so that I am able to find the percent difference between the max and...
View ArticleEvent structure for the disable property node
Afternoon Gurus, I am writing a piece of code which has several parallel event structures, each with several cases embedded. Within 3 or 4 of these cases I need to enable and disable many numeric...
View ArticleEvent case not catching value change EVEN WITH value signalling node
Afternoon all, Sorry if this has been covered before, but I've spent a while searching the forums and come up none the wiser. I understand that programmatically changing a front panel object doesn't...
View ArticleWhat is this symbol?
Hey,can somebody please tell me what this symbol is for?Best regards
View Articleset coordinate system using NI Vision Assitant
Hi I have 2 questions regarding NI Vision Assistant, I am getting the coordinate position of a ball using circle detection. 1) How do I configure the system so the reference point (0,0) is on the...
View ArticleWriting PWM data to analog using FPGA
Hello, I am working on a project to read the period of a PWM signal using FPGA. I am transferring that data to the host(RT) to calculate frequency and then convert it into an analog signal to write it...
View ArticleVISA Serial configuration
Hello all, I'm trying to run the Simple Serial.vi from the Serial.lvproj from the examples included in LabVIEW 2013. I am trying to connect to the COM1 port on my computer, which shows up on the...
View ArticlePlotting data from text file
Hello, I started using Labview from few days and my first need is to plot some data reading it from a text file.Attached an example of data file I need to read and plot.Thanks for helping me.
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