Buffer clear?

Similar Questions

• The events of mouse in the EVENT structure FAKE FIRE? Buffer Clear?

  Hi people,

  Nothing too complicated here.

  I uses a structure of the EVENT to capture keyboard events, or the mouse to operator custom popups.

  The problem is that about 1 in 10 times, if I program for several popups in a row, sometimes they trigger inputs with random Ghost and never appear to the user.

  I tried the search for keyboard trick to the top and "mouse up" instead of "mouse down". But it didn't stop him completely. It seemed to improve.

  I like to either,

  A. the problem

  B. disable the keyboard / mouse buffer before starting.

  Thanks in advance.

  PS. NOR is delayed to avoid creating popups operator more and better. I had to just get off my chest.

  The response was:

  The shot came from me hitting Ctrl-R to run the VI. When I published the letter 'R', the first VI seen as a sequence of keys and shot.

  DOH!

• Error using APDU buffer for update methods (encrypt/decrypt/sign)

  Hi all
  
  I get an Exception system and the error code is 3 which is ILLEGAL_TRANSIENT. I pass data between two cmdlets using the APDU buffer. The 1st applet is the applet currently selected, which transmits the data to the applet 2nd to perform cryptographic operations. Encrypt/decrypt and sign all work well using init() & doFinal() when the data is small enough to be transformed into a go. The problem is when I try to use update() for larger data, I get the error ILLEGAL_TRANSIENT (I get this for a signing operation, but guess I'll get the same thing to encrypt/decrypt as well)
  
  The JCRE (section 6.1.5 of the 2.2.1 version) specification explains this error as an attempt to access a transitional type CLEAR_ON_DESELECT object when the current context is not the context of the currently selected applet. The APDU buffer comes from the applet 1, which is the applet currently selected, so I think that's why I see this error. However, it does not make sense to me that I am able to do all calls except the update using the APDU buffer - clearly the update call tries to use the buffer passed to somehow illegal - but that shouldn't be my problem, I thought I'd...
  
  Any help/comments would be appreciated.
  
  Swati

  In addition, when you create the instance of the encryption algorithm you set externalAccess true? This is necessary to access the applet properly through ITSELF.

  The doc of the API:

  externalAccess true indicates that the instance will be shared between applet multiple instances and that the instance of the encryption algorithm is also available (via a shared interface) when the owner of the instance of the encryption algorithm is not the currently selected applet. If true the implementation doesn't have to allocate internal data CLEAR_ON_DESELECT transitional space.

  See you soon,.
  Shane

• Samples for read and rate (Hz)

  In the window of the DAQ Assistant, there are two options for playback of samples:

  1. "samples to read."

  2 "rate (Hz)" "

  Could someone please define the meaning of these? context-sensitive help is not clearify the meaning of these for me.

  Examples might help too:

  for example, now I have the settings to:

  Reading samples: 1

  Rate (Hz): 200

  What is read what that means in terms of samples per second?

  I'm recording given to 200 Hz?

  Any help would be greatly appreciated.

  See you soon,.

  Oliver

  OliC wrote:

  Hey thanks crossrulz, I use continues for my type of sample.  OK so I take 200 samples per second, because I have my rate fixed at 200, but what are ' samples to read?

  I put 'samples to read' 1, does that mean?

  This means you'll read 1 sample whenever the DAQ Assistant is called.  A sample is added to the buffer of each 5ms, so there are probably more data in the buffer.  That's why you might want to read more.  For example, if your loop takes one second to read, you should read at least 200 samples to keep the buffer cleared.

• PLS-00103: encountered the symbol "ACCEPT" in sql * most report

  Hello

  SQL > @Testing.SQL

  Please enter the Deptno: 30

  ACCEPT v_FROM_Date PROMPT ' Please enter the Date(In Format: DD-MON-YYYY) start: '

  *

  ERROR on line 5:

  ORA-06550: line 5, column 1:

  PLS-00103: encountered the symbol "ACCEPT."

  Clear Buffer;
  
  
  SET Heading ON
  SET Verify OFF
  SET Feed OFF
  SET Linesize 5000
  SET Pagesize 2000
  SET Serveroutput ON SIZE 1000000
  
  
  VARIABLE        v_FROM_Date       VARCHAR2(200);
  VARIABLE        v_deptno       NUMBER;
  
  
  Spool Details.txt;
  
  
  --PROMPT Please enter the Deptno: &&v_deptno
  --PROMPT Please enter the Start Date(In Format: DD-MON-YYYY): &&v_From_Date
  ACCEPT v_deptno PROMPT 'Please enter the Deptno: '
  
  
  BEGIN
      :v_deptno := UPPER(NVL(RTRIM(LTRIM('&v_deptno')),0));
  END;
  
  
  ACCEPT v_FROM_Date PROMPT 'Please enter the Start Date(In Format: DD-MON-YYYY): '
  
  
  BEGIN
      :v_From_Date := TO_DATE('&v_From_Date','DD-MON-YYYY');
  END;
  
  
  select empno,ename,sal,hiredate,deptno
  from emp
  where deptno=:v_deptno
  and to_date(hiredate,'DD-MON-YYYY')=:v_From_Date
  /
  
  
  SPOOL OFF;
  

  Thank you

  Rajesh123 wrote:

  1. VARIABLE v_deptno NUMBER;
  2. BEGIN
  3. : v_deptno: = UPPER (NVL (RTRIM (LTRIM ('& v_deptno')), 0));
  4. END;

  Thank you

  The v_deptno variable above is a number data type. So no need to use UPPER LTRIM, RTRIM, functions and why are you using NVL(v_deptno,0)? DeptNo 0 is present in the emp table? If Yes, you can use NVL with 0, otherwise just use any other deptno which is present in the table emp with NVL function.

  Rajesh123 wrote:

  1. Select empno, ename, sal, hiredate deptno
  2. WCP
  3. where deptno =: v_deptno
  4. and to_date (hiredate,'MON-DD-YYYY "") =: v_From_Date
  5. /

  Thank you

  HireDate is already a date data type to the emp table then why you try to convert a date once again. Delete this.

  Check the code of work after all the applied corrections that are not above below.

  Buffer Clear;

  SET the position WE

  SET verify OFF

  SET to power OFF

  SET Linesize 5000

  SET Pagesize 2000

  SET Serveroutput ON SIZE 1000000

  V_FROM_Date VARIABLE VARCHAR2 (200);

  VARIABLE v_deptno NUMBER;

  Reel 'D:\Details.txt ';

  -PROMPT please enter the Deptno: & v_deptno

  -PROMPT please enter the Date(In Format: DD-MON-YYYY) start: & v_From_Date

  ACCEPT v_deptno PROMPT ' Please enter the Deptno: '

  ACCEPT v_FROM_Date PROMPT ' Please enter the Date(In Format: DD-MON-YYYY) start: '

  BEGIN

  : v_deptno: = '& v_deptno ';. -If necessary use NVL ("& v_deptno", 10 (which is present in the emp table))

  : v_From_Date: = '& v_From_Date ';.

  END;

  /

  Select empno, ename, sal, hiredate deptno

  WCP

  where deptno =: v_deptno

  and hiredate = TO_DATE(:v_From_Date,'DD-MON-YYYY');

  /

  SPOOL OFF;

  -Edited as suggested by ascheffer

  Thank you

  Ann

• SAM Broadcaster hangs on virtual Windows 2000

  We have installed Windows 2000 Pro SP 4 on Vmware server 1.9.

  On the Windows platform, we have installed Sam Broadcaster, the most recent version.

  Radio streaming runns loves normally and as scheduled, but the stream before he died. Speed is set at 192 kbit/s using MP3 encoder.

  After the death of stream have the virtual processor Windows 2000 load increases to 100 percent ant the virtual Windows 2000 is suspended.

  It is written in the journal of the Sam Broadcaster: Encoder1 cannot send data fast enough. Encoding paused until the buffer clears...

  I tried to adjust the output of the Sam Broadcaster buffer, but this did not help.

  The adapter netvork virtual virtual Windows 2000 runs in nat mode.

  Hollow of reading connects to the host Centos 5.3 system and virtual Win 2000 installation gives all the answers.

  It is my impression that it could be something on the nat virtual server's network Vmware dangling.

  Is it possible to increase a buffer on the Vmware nat network, or to trobleshoot this point any further?

  Another alternative idea I have is to try to upgrade the 1.9 Vmware newest version 2.x, to see if this will clear the problem.

  Could I can still use the existing Virtual Windows 2000 installation, or will an upgrade to Vmware server 2.x require

  new installations of virtual machines?

  I would be grateful for any ideas or advice!

  **************

  One thing that should also be mentined: The Sam Broadcaster is tranmitting to a Shoutcast server that runs directly on the host system.

  If the stream is Shoutcast nat virtual server to a shoutcast server that is "internal data flow in virtual host".

  We have also tried to move the Shotcast server from the host system to an another virtual Centos 5.3, but the result was the same.

  All data flow that makes the virtual Windows 2000 to hang is data internal streams beween the virtual machine and the host system.

  or between virtual machines. The material is new dual core with 8 GB of Ram running on the data center. All tests were made using the same

  Shoutast configuration file.

  Langbein wrote:

  The idea of some nat tabel or fill buffer may be correct (?!)

  Does anyone know how to change or adjust the size of this buffer?

  I don't know how this SAM Broadcaster manages network traffic.

  UDP is more likely. Maybe, it is not a kind of 'filler', but too much latency?

  NAT's time consumption the host processor, and adds a few ms (check with ping). So this may be unsolvable for NAT. If its TCP instead of UDP, it can be solved by adjusting the RWIN and other TCP settings on the host and the guest.

• output in the text file

  Hello
  
  I have two master & detailed for example, EMP, Dept table.
  
  I need my output in the text file with delimiter ~ in the format below.
  
  

  10~accounting~newyork
  7782~CLARK~MANAGER~7839~6/9/1981~2450.00~10
  7839~KING~PRESIDENT~11/17/1981~5000.00~10
  7934~MILLER~CLERK~7782~1/23/1982~1300.00~10

  Rgds
  
  VK

  Hello

  This should work to get the right file name, but you can add your own code.

  clear buffer
  clear screen
  clear columns
  
  column fname new_value my_spoolfilename
  
  input
  prompt Enter a valid department id..
  accept dept number prompt 'Department ID. :'
  
  select 'IND'||upper(d.department_name)||to_char(sysdate,'yyyymmddhh24miss')||'.txt' fname
  from   departments d
  where  d.department_id = &dept;
  
  spool c:\temp\&my_spoolfilename
  spool off
  

  If I run it as a script, I get:

  Voer waarde voor dept in: 30
  oud   3: where  d.department_id = &dept
  nieuw   3: where  d.department_id = 30
  
  FNAME
  ---------------------------------------------------
  INDPURCHASING20090517125510.txt
  Verstreken: 00:00:00.39
  HR%xe> 
  

  And my c:\temp\ dir contains a file named INDPURCHASING20090517125510.txt:

• How to clear the output buffer, possibly resize and burn again, before you begin the task of output

  I use PyDAQmx with a USB-6363, but I think the question is generic to DAQmx.

  I have an output buffer that I want to be able to (re) write to without starting the task output.

  More specifically, I have a graphical interface and a few sliders, the user can move.  Whenever the slider changes, a new set of values is loaded into the buffer output through DAQmxWriteAnalogF64.  After you set the value, the user can click on a button and start the task output.

  In some cases the change in cursor does not require a change in buffer size, only a change in the data.  In this case, I get the compalint following DAQmx as they tried writing:

  The generation is not yet started, and not enough space is available in the buffer.

  Set a larger buffer, or start the generation before writing data more than content in the buffer.
  Property: DAQmx_Write_RelativeTo
  Value: DAQmx_Val_CurrWritePos
  Property: DAQmx_Write_Offset
  Corresponding value: 0
  Property: DAQmx_Buf_Output_BufSize
  Corresponding value: 92

  In other cases the change in cursor requires both change in the size of the buffer and data modification.  In this case, I get the following, but only after that do a few times each time increase the size of the writing.

  DAQmx writing failed because a previous writing DAQmx configured automatically the size of output buffer. The size of the buffer is equal the number of samples written by channel, so no additional data can be written before the original task.

  Start the generation of before the second writing DAQmx or set true in all instances of writing DAQmx Auto Start. To gradually write to the buffer before starting the task, call DAQmx Configure an output buffer before the first writing DAQmx.
  Task name: _unnamedTask<0>

  State code:-200547
  function DAQmxWriteAnalogF64

  I tried to configure the output via DAQmxCfgOutputBuffer buffer (in some cases, by setting it to zero or a samples, then save again, in an attempt to clear it) but that doesn't seem to do the trick.

  Of course, I can work around the problem by loading data only when the user clicks the end button, but not what I'm asking here.

  Is it possible to "remake" the writing of output before you begin the task?

  Thank you

  Michael

  Today I have no material practical to validate, but try unreserving task before writing the new buffer:

  DAQmxTaskControl (taskHandle, DAQmx_Val_Task_Unreserve);

  With a simulated device, he made the error go away in case the buffer is the same size.  You will need to validate if the data are in fact correct, but I think it should be (unreserving I would say reset the write pointer so the old buffer are replaced with the new data).

  I always get errors when you try to change the size of buffer if (on my 6351 simulated).  I posted some similar mistakes about the reconfiguration of the tasks here, I guess it is possible that this issue has also been set at 9.8 (I always use 9.7.5 on this computer).  If the behavior is still present in the new driver, and also appears on real hardware (not just simulated), then it seems that this is a bug of DAQmx someone at OR should be considered.

  I wrote a simple LabVIEW VI that captures the error in order to help people to NOT reproduce it:

  

  The best solution at the moment would be likely to re-create the task if you need to change the size of the buffer (or avoid writing data until you are sure what will be the size of buffer).

  Best regards

• How to clear the buffer in TCP/IP

  HIII

  can someone explain to me how the cleat of the TCP/IP communication buffer

  Hi Karthikey...,

  can you explain what you do with it? Why do you need it? That sends the data so that you can not work?

  Mike

• Does not clear the PDM buffer

  I use TDMS written and PDM rinse functions in a state machine application. I write to TDMS in two States and rinse after every write.

  Worth that I will have is that hunting TDMS takes the time to write data on the disk, but does not seem to fade from the buffer, such as duplicate data following emptying. Interestingly, this happens only for a single State.

  The first State, which has no problem, writes 30 items in each of the 16 channels, writes an element for each channel during each iteration of a loop and a I have FLUSH after I exit the loop.

  The status of the second loop is more critical time, so writing TDMS is that after the exit of the loop, and I store the data between the two in a shift register to write. I have create a new name and group every time I write to PDM data is duplicated in each new group corresponding to the State second, but not the first State. The second State writes a variable number of items in each of the 7 channels, but an equal number of each channel.

  States managed in a 1, 2, 1, 2, 1, model 2, so I'm confused why it is rinsed and the other is not.

  Any ideas? Thank you!

  rjmartinator wrote:

  I use TDMS written and PDM rinse functions in a state machine application. I write to TDMS in two States and rinse after every write.

  Worth that I will have is that hunting TDMS takes the time to write data on the disk, but does not seem to fade from the buffer, such as duplicate data following emptying. Interestingly, this happens only for a single State.

  The first State, which has no problem, writes 30 items in each of the 16 channels, writes an element for each channel during each iteration of a loop and a I have FLUSH after I exit the loop.

  The status of the second loop is more critical time, so writing TDMS is that after the exit of the loop, and I store the data between the two in a shift register to write. I have create a new name and group every time I write to PDM data is duplicated in each new group corresponding to the State second, but not the first State. The second State writes a variable number of items in each of the 7 channels, but an equal number of each channel.

  States managed in a 1, 2, 1, 2, 1, model 2, so I'm confused why it is rinsed and the other is not.

  Any ideas? Thank you!

  I guess the shift register that you use makes these messes are you compensation/Overwriting the shift registers. Anyway if you can put the code it would be then is to find the problem.

• How to replace the output buffer?

  I'm a generation of finite signals 2 lanes on a0 and a1. I want to change one or the other of the waveforms at various times during the program and sometimes I have to be able to overwrite the contents of the buffer with a new set of data until the generation has run. Should be easy, but so far I have not figured out how do.

  When I try, the first attempt to crush the buffer I get error-200547 occurred .vi DAQmx Write (analog 2D NChan DBL NSamp) that says full buffer, cannot write more data until the task has been executed.

  How to clear the contents of the buffer or make it possible to replace the buffer?

  I found the solution, systematically through the palette DAQmx looking probable functions.

  Simply insert a DAQmx controls Task.vi before the write.vi DAQmx, with set to cancel the Action. You can write new data to the buffer.

  I knew there must be possible!

• Problems with emptying the buffer for profile motion; Errors-70061-and-70137

  I'm trying to generate a movement code that synchronizes a motion profile with data acquisition using breakpoints; the VI (joint) is loosely based on the 25229.vi provided on ni.com.  I use a PXI-7354 controller and running Labview 2011.  I can run the VI once (successfully), complete the desired query, trigger the breakpoint and take data with no error message.  Then if I try to run the same VI immediately after, the engine will move only steps 5 and 6 and then stops. No data is collected, and no error message is displayed.  Then when I run it it a third time, movement and data acquisition complete, but I get error messages in the clear Buffer.vi saying that the buffer is used (error-70061).  I also have error-70137 to the CheckBuffer.vi, which I think is because it is still monitoring the buffer after the failure of the ClearBuffer.vi.

  Do I need to include a clearing of additional buffer somewhere initialization?

  Thank you

  Matt

  Hi MattCS,

  I think you see this undesirable behavior because you are not initializing your shift registers. Data of your last run are still saved in your shift registers so the next time you run it will start where it left off. So if you press stop during execution of the time VI the first it stops and everything works, but then the second time you run the VI the loop will stop after its first iteration since its listing, the old value of the shift register. Also if you ever get an error in the while loop will continue to be there every time that you run the VI. Please try the changes circled in the picture below and see if that helps.

  

  Tim O

• buffer of greedy or what?

  Hello, world, I have a problem, try to generate a block diagram to send a certain value of the tension of a servovalve using labview, got everything connected and output voltage is allowed to judge by the MAX of NOR, but when I run the vi it says I have a too small buffer size - error 200609. the problem could be solved, but unfortunately I've solved once, and I don't know why, it is still small. I enclose the .vi I, to make things clear - I put the tension with the wheel and send it to the servovalve

  p.s. I even put the size of the buffer at 5 million and does not always work, help me please

  If you want to just update the value of the output based on the value of your button, I don't know that the use of material and setting timing buffered is the way to go.  I recommend just to start your work, and a single sample of writing each time your loop iterates.  I modified your VI as such.

  Hope that helps,
  Dan

• Buffer could replace the queue in the design of producer/consumer model

  Hello

  I have a question to which the task of buffer to store the data and the queue is also of the same thing so we could use the inplace queue buffer in a design of producer/consumer model.

  No, these examples of buffer not almost equal to a queue, and never "replaces" queue at the producer/consumer.

  The advantage the most important of the queues for the producers/consumers (which none of the other mechanics buffer sharing), it is that it works activities to warn the reader that the data is available. So if you would simply replace the queue by mechanics of tampon too developed that you have attached to your last post, you will lose a large part of the object using producer/consumer.

  Thus, to compare the two mechanics:

  -Tail works activities, while the example of the buffer is not.

  -Tail must allocate memory during execution if several items are written in that corresponding queue. This also applies to the buffer (must be resized).

  -Given that the buffer is actually simply a table with overhead, memory management becomes slow and messy with the increase in fragmentation of memory. Queues to play much better here (but have their limitations, there also).

  -Overload of the buffer (the table manipulation) must be implemented manually. The queue functions encapsulate all the necessary features that you will need. So the queues have a simple API, while the buffer is not.

  -Given that the buffer is simply a table, you will have a hard time sharing the content in two parallel running loops. You will need to implement an additional charge using data value references to manage the buffer or lose a lot of memory using mechanics as variables. Lose the memory, you will probably encounter racing conditions so don't think not even on this subject.

  This led to four '+' for the queue and only a single point where 'buffer' is equal to the queue.

  Hopefully, this clears things up a bit.

  Norbert

• Empty the USB buffer

  We use VISA usb for a USB from our data.

  Everything seems to work properly, we can read and write to the thin device.

  We run into a problem however: If we lose the connection with the device, until we read all the bytes in the RX buffer and close the device, these bytes is achieved when we re-open the device.

  VISA flush doesn't seem to work on USB (like all the 4 predefined masks are refised). Clear VISA does not seem to help either.

  What is the right way to empty the remaining USB unit bytes when you open the interface of bulk VISA usb?

  Serge.

  Well, if VISA Clear does not work and, the bytes to port doesn't work we'll need to dig into the manual for the device at the other end and see how bad some massacred FW engineer a simple message base protocol series and what is really supported by the device.