OpenGL / & HDMI (using the example GoodCitizen)

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• LV 1.1, 14.5.1, 2950R USRP, DSP overflow using the example of Streaming Single-Device

  Hello.

  I use the SDR LabVIEW 1.1 and the USRP 14.5.1 with USRP-2950 device driver. Recently, I tried to use the interface of RX-host of the 'USRP RIO 40 MHz BW Single - Device Streaming PC' - example. Although the USRP device is connected to the PC via the MXIe card I get an error of overflow DSP (continuous mode). In my view must avoid an overflow of DSP for the chosen bandwidth and sample rate (examples in screenshot).

  If someone else gets this error or do I have to contact support OR? I already crushed the FPGA Image with the "NOR-SURP Configuration Utility.

  Thanks and greetings

  
  

• How play *.wav file using the example in vi

  Hi all

  I am a beginner of Labview.

  I tried to read file "*.wav" using "audio file read simple.vi", however, I could not all data.

  I would be grateful if someone help me!

  Hi all

  I reinstalled LabVIEW.  Then I can get the data without changing VI.

  In any case, thank you so much everyone who takes your time for me.

  

• I'm able to generate a signal with MAX test Panel. I am unable to generate a signal by using the example iviFgen.fp or my software. I guess I've misconfigured pilot Sessions.

  I have attached the screen shots that capture "devices and Interfaces", "Logical names" and the "driver Session."

  
  

• example of using the InstanceEquals function

  Can someone give me an example of the use of the InstanceEquals (< instance1 >, < instance2 >) function? This is the only function that expects instances as parameters, and I have no idea how to submit a specific instance. I would use this function to find out if there are two people in a household with the same day of birth (likely to be twins).

  This function is used in quite special circumstances, usually when the construction inferred relationships between entities of the same type. Jasmine has already used the example of twins, so let me guide you through another one.

  Example of

  Lets say we have schools (the school) and States (the State) and we need to build a relationship suspected between a school and other schools in the same State (schools in the same State).

  the school (the other school) is a member of the schools in the same state if
    the other school's state = the school's state
  

  Now, the problem with this rule is that it will allow to evaluate in all schools, including the source, so if I have 3 schools (s1, s2, s3) the State 'NY' relationship with as source will look like:

  S1--> (targets for "schools in the same State") s1, s2, s3.
  S2--> (targets for "schools in the same State") s1, s2, s3.
  S3--> (targets for "schools in the same State") s1, s2, s3.

  Note that s1 is the source and is also a target because he has the same condition. Follows same to s1, s2, and s3

  Now, we can fix it using the function InstanceNotEquals (negative form of the InstanceEquals)

  the school (the other school) is a member of the schools in the same state if
    the other school's state = the school's state; and
    InstanceNotEquals(the school, the other school)
  

  with the additional rule will look like the relationship for each school

  S1--> (targets for "schools in the same State") s2, s3
  S2--> (targets for "schools in the same State") s1, s3
  S3--> (targets for "schools in the same State") s1, s2

  Which is probably what we intended.

• Use the TestStand error callback if in the editor

  We have an error message reminder custom in our process model to display errors of the operator.  What we would do is if in the sequence editor, use the TestStands error handling (where he gives the options of cleaning, put end to, ignore, etc.).  I don't see the code for this anywhere.  I could put in the example so that if in the editor, use the example which has similar options, but which has a shape and a different feel.  Is it possible to use programattically built in reminder vs recall process model we have created?

  Sorry about that. Try this one.

• When you use the NI-CAN Transmit sample receive the same Harbor; can a virtual CAN channel (RCA or 257) be used?

  I work for a company that produces and transforms electric parts. We strive to get in remission at nine of the ECU, experiences, Instrument clusters etc. I'm trying to learn how to use LabVIEW to write commands and read the data on the CAN bus. I have downloaded the NI-CAN driver. I am currently 'play' with the same reception Port.VI show in the basic frame of the finder example API folder OR. I am not able to send the number in the data to write the table that it be read by the ncReadNet Mult .vi. When I put the parameter to 'Pending entries reading' the ncGetAttr.vi returns a 0 to indicate that there are no frames to read. As a result, the Mult.vi ncReadNet does not run.

  I don't have any connected equipment, I use the virtual CAN channel CAN256. Is this the reason why I can't get data frames in my queue for the Mult.vi ncReadNet to read?

  When you use the NI-CAN Transmit sample receive the same Harbor; can a virtual CAN channel (RCA or 257) be used?

  CAN carry 256 and 257 are connected to eachother through software.  When you write about 256, you can read the data on 257 and vice versa.  I think the example you mention is a writing and reading on the same port, but what you want is to probably to make a copy of this VI, in order to run two at once, where it opens 256 and the other opens 257.  Then, when you write one that you will see on the other.  I think you might be able to use the test panel CAN too read an and use the example of the other.

• DAQmx continually update the example output table

  Hello

  I use the example Synch_AI-AO in the DAQmx folder and it works very well for sine waves, pulse, triangle waves, or whatever it is periodic. However, I would like to output an array of noise which produced WhiteNoise, which is continually updated service every N seconds.

  I tried to call the StopCallback and the StartCallback, then after delaying for N seconds, but since I have to be running when I call these callbacks I find myself coming back to the place where I called them before going back to them (like recursion), who kills my program.

  Is there a way update output so that it does not have the question of the recurrence which blocks my program?

  Thank you.

  Hi EricJR,

  Instead of calling the functions StopCallback and StartCallback, have you tried to call the DAQmxWriteAnalogF64 function whenever new samples are generated?

• cRIO - H bridge using the PWM output and input only encoder control

  Hello

  I am currently working on a project to control a 230V brushed servo motor using cRIO. The engine drives a linear step and the final project needs to create a control of position of the engine that the user is able to enter a speed, position and control steps to move to this position.

  I use a bridge using NOR-9401 and H to power the motor circuit and a PWM output to move the engine. I also have an encoder, quadrature, connected to a NOR-9403 read position and speed. I use the example program of encoder for the NI 9505 - in my application.

  There is no voltage or current on the drive circuit sensors so I wouldn't be able to have a closed loop current in this case. The scene release mechanism is such that the position is locked if the motor does not move and I do not need a torque control to keep the engine in place.

  To achieve this, I just wouldn't be able to use a single PID VI (probably the FPGA VI express for discrete PID)?

  I am not very well versed in the theory of control, and therefore no indication in the common sense would help me a lot.

  Thank you very much!

  Sexy,.

  in general, it is best to use a cascade control loop structure but in principle must also be able to use the output of the control loop of position as an input to the PWM generator. The main disadvantage of this configuration is the current limitation missing. Without current meaning is no longer the only way to protect your engine from drawing too much current to limit to the current maximum output of your diet, or to limit the maximum duty cycle of PWM. Without current information, the last method is quite inaccurate, but better than nothing.

  I agree with Mike, you should look in the examples of the 9505 module and use the controller position vi of these examples. This PID controller is optimized for motion control applications and it is implemented in the fixed point arithmetic, offering the best performance on and FPGA.

  Kind regards

  Jochen Klier

  National Instruments

• Error when using the API to publish on form

  Hello

  I use the instructions here to post data to a form of eloqua. When the form is displayed, I get the message:

  Code: UnexpectedDataException

  Message: Could not submit form. Check that the required fields have been provided and that all fields are of the correct type.

  Again, using the example as a guide, form Eloqua is only 3 fields - Email, full name, company. None of the fields are mandatory and are all text.

  I'm at a loss. According to me, there I'm missing something simple, but can't. Anyone has an idea on what might be causing this error?

  Thank you

  Nick

  OK, you can use DescribeEntityType, which will bring back all forms and their identity papers, to ensure that you have the right one.  Also, once you have the right ID, you can use DescribeEntity (to aid the DynamicEntity ID) to get a list of all the fields and whether or not they are required.

• Perform a search using the API of HIS without informing the user password

  Hello
  
  I use the example in the doc http://docs.oracle.com/cd/E10390_01/doc/search.1018/b32515/oracle/search/query/webservice/client/OracleSearchService.html. I would like to create a custom search. However, I am facing problems because the API States that I should inform the user password. In this case, how can I make the search without entering the password? Theoretically, authentication was achieved by an SSO, and if so, how could I say to the API?
  
  If anyone has any suggestions,
  
  Kind regards
  
  Christian

  If your application knows with certainty that the user has been successfully authenticated by an external mechanism, then you must use the "connection proxy" function to run queries on behalf of this user.

  The proxy connection relies on a secret shared between your application and the server of ITS. This behavior is implemented by the Federation of the entities of confidence in global settings. The login name of the proxy is the name of the entity, and the password is entered directly in the page trust entities or search via the plugin of the identity, if option is selected on the trusted entities page.

• Using the dependent drop-down list

  I created a form of dependent drop-down list in Acrobat X Pro using the example in the tutorial:

  http://acrobatusers.com/tutorials/js_list_combo_livecycle

  This code works very well, however, this tutorial only works if the options for dropdwon lists are complete words. Several words separated by spaces cannot be used because the main list options are used in the form of tables. In this tutorial, for example, the main list options are: Chassis, clutch, etc. (a Word). This technique does not work is for example, if the options in this list are 'Cylinder Ring', 'Insert', etc.

  Any ideas on how to implement function dropdow lists using multi-word options?

  Thank you.

  Just put in quotes the properties of the object. For example:

  var oAssemblyParts = {}

  "Châssis":]

  ["' - ', 'None'"].

  ['Rear Bracket', 205,95],

  [48,95, "Front bearing"]

  ],

  'Cylinder Ring':]

  ["' - ', 'None'"].

  etc.

• Using the slider for and BULK COLLECT INTO

  Hi all
  in this case we prefer to use the cursor AND the cursor with the LOOSE COLLECTION? The following contains two block this same query where used FOR the slider, the other is using COLLECT LOOSE. The task that is running better given in the existing? How do we measure performance between these two?
  
  I use the example of HR schema:

  declare
  l_start number;
  BEGIN
  l_start:= DBMS_UTILITY.get_time;
  dbms_lock.sleep(1);
  FOR employee IN (SELECT e.last_name, j.job_title FROM employees e,jobs j 
  where e.job_id=j.job_id and  e.job_id LIKE '%CLERK%' AND e.manager_id > 120 ORDER BY e.last_name)
  LOOP
    DBMS_OUTPUT.PUT_LINE ('Name = ' || employee.last_name || ', Job = ' || employee.job_title);
  END LOOP;
  DBMS_OUTPUT.put_line('total time: ' || to_char(DBMS_UTILITY.get_time - l_start) || ' hsecs');
  END;
  /
   
  declare
  l_start number;
  type rec_type is table of varchar2(20);
  name_rec rec_type;
  job_rec rec_type;
  begin
  l_start:= DBMS_UTILITY.get_time;
  dbms_lock.sleep(1);
  SELECT e.last_name, j.job_title bulk collect into name_rec,job_rec FROM employees e,jobs j 
  where e.job_id=j.job_id and  e.job_id LIKE '%CLERK%' AND e.manager_id > 120 ORDER BY e.last_name;
  for j in name_rec.first..name_rec.last loop
    DBMS_OUTPUT.PUT_LINE ('Name = ' || name_rec(j) || ', Job = ' || job_rec(j));
  END LOOP;
  DBMS_OUTPUT.put_line('total time: ' || to_char(DBMS_UTILITY.get_time - l_start) || ' hsecs');
  end;
  /

  In this code, I put a timestamp in each block, but they are useless, since they both launched virtually instantaneous...
  
  Best regards
  Val

  (1) bulk fired fresh primary use is to reduce the change of context between sql and pl sql engine.
  (2), you should always use LIMIT when it comes with bulk collect, this does not increase the load on the PGA.
  (3) and the ideal number of BOUNDARY lines is 100.

  Also if you really want to compare performance improvements between the two different approaches to sql pl try to use the package of runstats tom Kyte

  http://asktom.Oracle.com/pls/Apex/asktom.download_file?p_file=6551378329289980701

• I'm new to PS PS6 and bought PS Classroom in a Book as a primer.  In Lesson 1 (using the 01B_Sta

  I'm new to PS PS6 and bought PS Classroom in a Book as a primer.

  
  

  In Lesson 1 (using the example of 01B_Start.psd), I am able to capture and move the horizontal text, but when I followed the instructions (just like short!)

  to change the color of text, via a selection of swatch, the foreground color and the change of color of text Optios Bar, but the text I typed and then selected for change (by instruction!) does not default black.

  
  

  Can someone help me solve which I am certain is a trivial problem?  No technical support on the weekend.  The only time where I have to do!

  Thank you.

  Jack
  

  Hi Jack, could you perhaps post a screenshot of your workspace? That would help us WORK more assess your problem.

  1. to change the color of the text in Photoshop, first make sure that your text is selected and highlighted. To select all of the text on a layer of plain text, just quickly, double-click the "T" icon in the layer in the Panel layers:

  

  You can see above that my text is now highlighted. This means that I can change the color of the selected text.

  2 to change the color of text, you can either click on the color chart of the text tool options bar (make sure the text tool is selected), or use the sample of foreground in the toolbar. Both options are shown below.

  

  Although it's not like, you can ensure that your Color Mode is set to RGB or CMYK. If you are in grayscale, you only see colors in shades of black, white and gray. To check your color more, go to Image > Mode

  

  Best,

  Kendall

• Satellite L550-117 - how to use VGA + HDMI at the same time?

  Hello
  I have a Satellite/Satellite L550 series Satellite L550 - 117.
  Can I use 2 monitors at the same time, using the function key (laptop screen + HDMI, VGA + HDMI, VGA, portable computer), but I would use "laptop screen", "VGA output" + "Output HDMI" at the same time (for example: to play a movie on an HD TV and work on the other two screens).
  I also want to play sounds on computer speakers 'and' an HDMI output, not the speakers for computer 'or' HDMI.

  Is it possible with this notebook and how?

  Thank you

  Hey Buddy,

  Good idea you have unfortunately it of not possible to use 3 monitors at the same time. You can use the internal monitor and an external monitor but not the two external monitors. This is not supported in the graphics card.

  Then, you use internal monitor, VGA connection or internal monitor + HDMI connection. That s what you can do.