Myrio stop rt

Similar Questions

• Engine for MyRio adapter command 2 DC motors

  Hello

  I have a question about the adapter engine for the MyRio. I found the following code example:

  https://decibel.NI.com/content/docs/doc-45592

  This afternoon, I was able to drive a motor continuous using this VI, but I want to use to control 2 Motors continuous. I tried the following (see photo) and it did not work.

  What should I do for the second DC motor?

  Thank you!

  Hello

  Well, the next time you post, it would be useful to have all the information to start with (what does your system, errors, measures

  you have taken to solve the problem, etc.). This way more people will respond and we can help you more easily.

  By parallel loops, I just run two processes in separate loops at the same time in the same VI (what they do on the link).

  If you think about it logically if this initial process is running one engine, then do the same exact process but that it points to the

  second motor will run the second engine. So, if you include the two pieces of code (exactly the same but different engines references) in the same VI then it can run two engines.

  If you look at the link I have attached before she speaks of two ongoing processes at the same time within the same VI.

  You can then use queues and the authors of the notifications (look in them) to communicate between the two processes you use, allows from Control Panel even before to control them and stop them both at the same time.

  With this, you should be able to all both enforce.

  Hope this helps

• myRIO Servo demo does not: Servo sweeps back

  Hi all

  For the first time using LabVIEW and myRIO and I thought I'd run the demo of Servo. The question that it displays the following error message:

  

  If I choose to ignore the error my servo works but don't stop at a point (hold the angle) and sweeps rather backward. This can be seen in the following video:

  https://youtu.be/z3Eluin3sWo

  I'm honestly at a loss, I have virtually no experience with this hardware and software and the standard demo software does not work. I use an analog servo CS - 239 MG Corona.

  Any help will be greatly appreciated

  Hi Kathryn,

  Thanks for all the help, you were extremely helpful the solution was that I needed to power a battery pack as the myRIO provided far too little power. I found the solution in another forum of NOR and the OP knew exactly the same question. I have a battery pack on order and will update with the results.

  Kind regards

  Rhett

• myRIO sampling rate

  I'm new to myRIO and use it to measure sine wave (0V to 5V) of up to 10 Hz 20 KHz. I also quickly transformed of Fourier (FFT) of the signal measured in real time.

  Sideways FPGA of things, I try to keep things pretty simple, just read 2 channels of AI (connector B: AI0 and AI1), therefore potentially able to read each HAVE 250 kech. / s (as the unit has a capacity of 500kS/s). Does that mean this program gets a two analog inputs data exactly every 4 microsecond? If this is not the case, how can I make sure that the data is acquired through a fixed sampling rate?

  

  I realized that we can add to the FFT in FPGA function, but I wanted to manipulte the acquired data of analog inputs before it is sent to the FFT, which I don't know how to do now. Can someone explain me how do the arithmetic data (muliplication, division and so) on the acquired data and analog inputs to reducde the 12-bit resolution 10-bit to program FPGAS.

  Later, I created a myRIO program to read analog data 2 FPGA program which continues to turn in timed loop. In the program myRIO, the timed loop is configured to 1 MHz clock source type by a delay of 25 microseconds.

  This configuration means that the loop runs exactly every 25 microsecond?

  When I set up the less than 10 micro second time, myRIO has stopped working. Why is it so?

  Is it because myRIO cannot run as fast as FPGA?

  

  It is advisable to make the FFT of myRIO side analog data or FPGA?

  When I tried to do FFT using the power spectrum of myRIO side, he asked for waveform data. What I acquire is data analog. How can I convert in waveform data?

  If I read in the forum for help, I couldn't have the full answer to my doubts

  Discussions at the Forum I did reference:

  http://forums.NI.com/T5/academic-hardware-products-Elvis/setting-tick-count-in-myRIO-FPGA-software/m...

  http://forums.NI.com/T5/academic-hardware-products-Elvis/myRIO-aggregate-sample-rate/m-p/2707061/HIG...

  A lot of good questions here, I will try to answer as much as I can so as to offer a bit of advice.

  First of all, if you are looking to acquire data at a very specific rate on the FPGA, you'll want to use the Timer VI.  You are also going to use a FIFO of DMA to transfer data of FPGA in real time. A node read-write using as you do now means you'll run out of samples, or read the sample even several times.  The link below is a very good tutorial on how to do what I described above.

  http://www.NI.com/Tutorial/4534/en/

  Later, I created a myRIO program to read analog data 2 FPGA program which continues to turn in timed loop. In the program myRIO, the timed loop is configured to 1 MHz clock source type by a delay of 25 microseconds.

  This configuration means that the loop runs exactly every 25 microsecond?

  When I set up the less than 10 micro second time, myRIO has stopped working. Why is it so?

  Is it because myRIO cannot run as fast as FPGA?

  In general, you should not run a timed loop much faster than 1 kHz.  Using timed inside loop knots, you can monitor the real rate of loop during execution to see if f you meet your needs of the moment.

  The portion of your myRIO RT is slower than an FPGA in the sense where it cannot manage the rates of lines 40 MHz (he makes up for it by being able to work with much better pictures) and it is important to remember that it is just a computer.  The advantage of a real-time operating system, is that you have more control on the Scheduler, not that he is faster (less jitter, not faster code). There is more good reading below.

  http://www.NI.com/white-paper/3938/en/

  It is advisable to make the FFT of myRIO side analog data or FPGA?

  When I tried to do FFT using the power spectrum of myRIO side, he asked for waveform data. What I acquire is data analog. How can I convert in waveform data?

  I would say that it is generally advisable to treat your FFT on the side FPGA as long as you have the resources available, but for many applications probably little matter ultimately.

• myRIO data update

  Dear Sir.

  I have a confusion in VI that I joined. I want to import the data that I had had in myRIO. So I created a variable shared for factor of voltage, current, power. When I start excel VI the current value is updated as a ZERO in the excel worksheet.

  The other question is, whenever I run the final VI of the voltage and current values are continuously updated, when I stop the VI power factor values is updated. I first thought the reason behind this is the power factor is placed on everything in loop.even when I removed the while loop, the power factor value is displayed a zero and the same continuous continuous when I stopped the VI. I couldn't solve this problem Sir, so I ask for your help, please help me to tackle this gentleman of the error.

  Hi Swathik,

  The answer to your question as to why the updates of the power factor is only once because you have placed this flag outside the while loop (as you mentioned). The solution is not to remove the while loop, but put all the code you want to be updated / repeated several times in a single while loop, i.e.., if you want that all the calculations of factor of power and the parameters (P, Q, S, phi) to implement also each time and connected every time put it inside the while loop.

  Another thing, is the inappropriate use of shared variables. It must be very careful in implementing the same.

  It is much better to go forward with the architecture of consumers producer you can follow this link

  http://www.NI.com/white-paper/3023/en/

  The loop of the producer will keep generating the myRIO values, and the loop of consumer will record the data in the excel worksheet.

  See you soon,.

  Rolland

• myRIO Brightness LED

  Hi all

  I did a way to control not only the brightness of the embedded myRIO LEDs, but their brightness using PWM and control.

  I have attached the FPGA VI for the myRIO-it may need to be compiled.

  Suggestions are welcome!

  I think your VI could be considerably simplified! I suppose that it was an exercise for you and you are looking for some comments?

  (1) you can delete local variables (using FPGA fabric) and just the brightness adjustment of thread to Wait (uSec) directly - plug the wire in each of them.

  (2) having a button 'stop' on the FPGA code really makes no sense... you can always code to continue to operate... otherwise you would need to reset the FPGA (which is in contrast with the programming in windows where you still want to stop the loop gracefully rather than abandoning it--don't forget not what a FPGA essentially an electronic circuit when compiling)

  (3) why you have additional sequences with an expectation of 1uSec to? You might just have ' turn on '-> 'wait'-> 'disable'-> 'wait '.

  (4) having 4 loops for the variation of some LEDs seems unnecessarily repeated code... If you wanted to get really smart I don't know that you could simplify the code down to a single loop!

• Why push button and stop button does not work in the structure of the casing and buckle my VI? (code attached)

  I am a beginner. I'm trying to create a simple VI only switches beetween two types of signals like sine and triangle when someone press on the push button and at the same time, save the data in the file to my desktop. I also have a stop button which no longer record data.  Here are my questions and dproblems:

  1. when I press the button, it does not the true and false in the structure of the case so that I can see the triangle wave stops and begins the sine waveform table.

  2 when I press the stop button, I want the program still running, but the process of writing data in time the loop stops. I don't mind if the graph of the wave stops too but it would be better for the user to see the wave form is running, but the data will stop recording.

  3. Although the condition of the loop did not accept the local variable for the stop button inside the loop or within the structure of the case, so I put the button outside all the loops and the structure.  (I know that this is a problem, I do not know how to use a single button several times in a single code. The local variable did not work the world premiere? I have to?)

  4. the data file it creates hase a lot of lines and columns. I expect a time column and a column of mixed signals based on the push button amplititude this user press every time.  I did that with the acquisition of data and a sensor, it automatically gives me the voltage and time in a column. I tried 2D and 1 d and it has not changed anything.

  Thank you for your help

  

  

  Like you said, you read only your entries at the beginning, then whatever value they had before you hit run is worth to be seen by the rest of the code. Programming LabVIEW is based entirely on the data flow and parallelism. It is incredibly powerful and has led to its success over the years (coupled with graphical programming), but is usually one of the first things the new developers stumble on. This is a simple resource to familiarize themselves with its functioning. The function to highlight execution is a great way to watch how your application uses data streams.

  

  Simple code goes like this:

  • Containing the main code of while loop
    • Inside of the whole loop is all user interaction code or modify the code entry
    • Stop the terminal loop is attached to stop certain criteria or user selection of a stop button
  • Loop initialization above all if necessary
  • Closing referrals and communications, etc after all loop

  It's very simple code. If you want to watch in more advanced architectures that are scalable, Google "LabVIEW State Machine" or "LabVIEW producer consumer."

  If you are just starting, you should do a free training have the capabilities of LabVIEW.

  "Give me six hours to chop down a tree and I will spend the first four sharpening the axe.  -Abraham Lincoln

  Here are some free training focused mainly on LabVIEW and hardware tools to help get started.

  Training center of NOR

  NEITHER start-up

  -Hardware Basics

  -Guide of MyRIO project Essentials (a lot of good simple circuits with links to youtube events)

  -LabVEW databases

  -DAQ Application tutorials

  -CRIO Developer's guide

  Learning OR training videos resources

  Introduction to LabVIEW for 3 hours

  Introduction to LabVIEW for 6 hours
  Paced self-study for students
  Self Paced Training beginner to advanced, required SSP
  LabVIEW training Wiki

• myRIO i2c problem

  Hi I have just started using the myRIO. I use the I2C to connect a remote device (motor controller). I figured out how to send data (speed), but Im having problems reading certain values with the I2C of myRIO function. I want to read the register to 0 x 11 to my device. How can I specify what registry I want to read? Thank you.

  RokCapuder wrote:

  Thanks for the quick reply HappyAsthma!

  This is the VI I'm singing and his does not work in the current state. Should I wait for a period of time between writing and reading?

  N ° you shouldn't need to wait (the exception being if you were manually manipulate the clock).  By specifying, you send a little of each clock cycle.

  And I can't open the screw specifically because I don't have the library/drivers installed, but try to use the VI read write to make your bed instead of do it manually then 1 reading and writing 1:

  http://zone.NI.com/reference/en-XX/help/373925A-01/myrioreference/myrioref_i2cwriteread/

  

  You can send the address of the slave, bytes to write is 0x11, bytes = number of bytes you want to read (your device needed to be put in a registry to make incremental "burst reads" a special value)

  EDIT:

  I guess (without seeing the code VI) is that the VI and VI read write send the STOP bit automatically once they are do all the bytes read/write.  VI read write is probably configured for write Byte (s), and then immediately read some byte (s) before sending the STOP bit.

• the 1900 myRIO FPGA multi channel data acquisition

  Hello world

  I would ask you for help in my program acquisition and generation of data. The main task of this program is to measure 4-channel adjustable sampling rate (2 kHz and less) and to generate an analogue signal in up to 50 kHz sampling frequency.

  I created two loops and everyone is dedicated to different operation. The first loop is to measure data, or in writing to the DMA FIFO and the second loop is dedicated to the generation of signals. I adjust the main parametrs of the two loops in a host of vi.

  But what is my problem. I compile the program in the FPGA of myRIO without any problems and I can run too but the problem is that sometimes, especially when I adjust the lower sampling frequency of the loop to measure to the rank of channel changes measured and I see that the signal that is connected to osciloskop AI0 channel on channel AI3. When I stop the program, set the higger sampling frequency and run it again, it works well and the signal is on the right channel. Could someone help me with this problem? I tried to check all the forums that I know, but I did find an article or a discussion of a similar problem.

  Thanks a lot... :-)

  Andrew,

  I just solved the problem. I thought about it again and I got the idea to change the size of the DMA buffer on the side of myRIO. I expanded the buffer of 1023 elements in 2047 and it works well and I can change the sampling without problems.

• My iPhone 6 installed 10.0.2 stops when it gets to 40% of autonomy.  In addition, it seems to pass power WAY to fast with the new software.  Does anyone else have this problem?

  My iPhone 6 installed 10.0.2 stops when it gets to 40% of autonomy.  In addition, it seems to pass power WAY to fast with the new software.  Does anyone else have this problem?

  Hello brooksm549,
  Thank you for using communities of Apple Support.

  I got your message which, since updating your iPhone 6 to iOS 10.0.2 your iPhone stops when it is 40% and the power to empty very quickly. I understand your concern with the iPhone turn off and drains the battery. I recommend you to review the use of the battery to see what app contributes more to the battery drain. The following article will provide you with steps on how to check the use of the battery:

  On the use of the battery on your iPhone, iPad and iPod touch

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• need stop synchronization before finishing to avoid ipod classic remove

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  It's weird...  Hard drive it is possible to the iPod becomes unreliable and is damaged during the synchronization process.  What happens if you set it up to only synchronize a small number of songs, instead of "all"?  For example, on the settings screen of music from iPod in iTunes, rather than choose to synchronize the entire musical library, choose the option to synchronize playlists, artists, albums, and genres, and select only a SINGLE album.  These songs always get deleted at the end of synchronization?

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• Incoming text notification has stopped

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  Hey achilds_IOS,

  Thank you for using communities of Apple Support. From your post, I see that your iPhone and Apple Watch are not audible alert you when you receive a text message. I can understand how it is important to hear notifications and want to help you get the most out of your device and all its features. The following information includes some options that can help to get it working again. If you haven't already done so, we will try to restart the iPhone 6 s and Apple Watch.

  You also said that nor peripheral are silent. We will also make sure that your device is not on do not disturb as well. The link below can show you how to turn off and check that do not disturb is not on a calendar.

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• Suddenly sync with my iphone, my ipad mini photo stream stop 6

  Please I need help!

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  I tried all the tips I found here and at google and it still does not work.

  Thank you very much.

  vively wrote:

  Please I need help!

  My cry of my mini ipad picture suddenly stopped syncing with my iphone 6. It started already before the 10 updated both ios.

  I tried all the tips I found here and at google and it still does not work.

  Thank you very much.

  Since you don't specify what you tried actually, here, you can:

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