How to clear CAN buffer

Hai
   How to clear the CAN buffer.
i use CANwrite & CANread in sequence, after every read & write operation i am getting the
previous write operations CAN data with the consequtive write & read function.
i want only the responce of respective write operation
thanks
sk
I am using LabVIEW 7.1 & PCMCIA CAN card
Attachments:
a.JPG ‏44 KB

Hi
All messages received in sequence step 1, should be removed from the queue and no longer available for sequence step 2.
It seems you receive still data after your Read call in sequence Step 1.
The only chance is to read all old messages, short before you write the second request in sequence step 2.
To check whether this is not our fault, please create a Spy logfile using NI Spy from Start>>Programs>> national Instruments>>NI-Spy.
First run the NI Spy, second your application, single run, stop Spy and save the log file .
That could help us to see what is going on.
DirkW

Similar Messages

  • How to clear a buffer memory in a report program?

    Hi Gurus,
    How to clear a buffer memory in a report program?
    Regards,
    Amit Kumar Singh

    Yes i am using USER__COMMAND like this
          FORM USER_COMMAND                                             *
    FORM user_command USING u_ucomm     TYPE sy-ucomm
                            us_selfield TYPE slis_selfield.     "#EC CALLED
    data : l_memory_id(20) type c value 'BSVA_BUFFER'.
    free memory ID l_memory_id.
      CASE u_ucomm.
        WHEN gc_refresh.
          PERFORM clear_data.
         CONCATENATE '-' p_months INTO p_months.
          PERFORM populate_z01.    "List of Plants and Materials
          PERFORM populate_z02.    "List of Periods and dates
          PERFORM populate_z03.    "Report Contents
          PERFORM add_data.
          us_selfield-refresh    = c_x.
          us_selfield-col_stable = c_x.
          us_selfield-row_stable = c_x.
      ENDCASE.
    ENDFORM.                    "user_command
          FORM PF_STATUS_SET                                            *
    FORM pf_status_set USING ut_extab TYPE slis_t_extab.        "#EC CALLED
      DELETE ut_extab WHERE fcode = gc_refresh.
      SET PF-STATUS 'STANDARD_FULLSCREEN' OF PROGRAM 'SAPLKKBL'
          EXCLUDING ut_extab.
    ENDFORM.                    "pf_status_set
    Where   gc_refresh is defined as
    constants : gc_refresh TYPE syucomm VALUE '&REFRESH'.

  • How to clear paste buffer

    Does anyone know how to clear the paste buffer on an iphone?

    A Restart or Reset should do it.  Maybe there's an app to clear it?
    BTW, it's called a clipboard if you're going to search for an app.

  • How to clear CAN Frame Cache

    I'm using CAN Frame API and I keep reading the same data, how can I clear the CAN cache? Or is there a way to look at the most recent messages?

    Hello adle9394:
    Have you tried running the CAN Receive.vi example. Do you experience the same thing?
    Regards,
    Roland A.
    Applications Engineer
    National Instruments
    Check out VI Roadshow

  • Fiori Enhancment - BSP how to clear buffer/cache?

    Hi All,
    So I'm trying to make some enhancmenets to a Fiori app. I have downloaded it and reuploaded is as a new BSP application.
    I wanted to make some changes to the BSP, so I changed the code directly, in SAP.
    I thought I must be doing something wrong, but my changes weren't having any effect.
    To further test this I wrote some nonsense which should ahve broken it... but it still ran fine!
    To test further again I went to SICF and deactivated the node!! ANd it STILL worked fine!
    I opened new sessions in my browser, and new incognito windows, and closed it all and reopened it all, but it STILL works fine!
    There is clearly some kind of caching/buffering going on here, I've found the tables: O2PAGDIR and O2PAGDIRT have buffered values (found out this from ST02)
    But how do I clear it?! I turned buffering off in these tables, to see if that worked, and made another change, and tried to reload the table... but STILL the page loads with no changes.
    Please, can anyone tell me how to clear the buffer/cache that means that when I make UI chanegs in a BSP it doesn't show them?!
    Thank you
    Lindsay

    Hi Mauro,
    I overcame this issue in a variety of ways:
    Firstly, I do all the customisation of the BSP applications locally on my machine.
    Then I upload the whole BSP using the program /UI5/UI5_REPOSITORY_LOAD.
    In order to make sure the display you see in your browser is the up-to-date version, there are various cache clearing things you can do:
    Program /UI5/RESET_CACHEBUSTER - this has no UI, and takes only a second to run
    Transaction /UI5/THEME_TOOL : double click on "Invalidate Cache" to refresh the theme cache (if you have made theme changes)
    Then you have the two model caches mentioned above by Ashish - if you changes the Gateway service but aren't seeing these changes you should run these to ensure the model is up-to-date.
    Browser caches: make sure you browser cache is cleared: for Chrome this is easy: hit F12 (to get Dev toold open), clickk on the cog icon, and tick the box "Disable cache (while DevTootls is open)" - then keep devtools open while refreshing the page.
    The best way to enhance the BSP applications is locally on your machine, and do all your testing locally before uploading.
    I hope this helps, let me know how you get on.
    Lindsay

  • E-Recruiting - BSP application - How to clear buffer?

    Hi,
    I’m debugging one of BSP application (I set an external break point at method of model class).
    Very first time program flow stops at break point but after that it is not stopping there b/c records being fetched from buffer. May I know how to clear the buffer?
    Regards,
    ...Naddy

    Well,
    E-Recruiting Infotypes are buffered within the application as internal tables.
    The buffer is filled, when first time opening an subapplication. It's also filled, when those infotype records have not been read before.
    Refreshing the buffer is only triggered by the application. This is done by "Refresh"-Buttons or Buttons like "Start selection".
    You cannot refresh it yourself, while debugging. It's a global event called by button events.

  • Need help in clearing string buffer during dynamic VO where clause in oaf

    Hi All,
    I am dynamically setting where clause in OAF using string buffer, but the issue is when i am executing the vo multiple times so the old data in the string buffer it is not clearing .so every time my where clause adding to the query and it is erroring out, please help me how to clear string buffer class in oaf.
    Thnaks

    Hi,
    Could you please share the code segment for reference. Then we can tell the solution.
    Regards,
    Tarun

  • Can someone please help me figure out how to "clear" recent email addresses used in Mail?

    Can someone please help me figure out how to “clear” recent email addresses used in Mail?  For example, as I begin typing a name/email address in the “To:” field, Mail begins suggesting addresses that I’ve previously used.  I don’t want any suggestions unless they are in my contacts. 
    Another example:  When using MS Outlook, it will also remember and suggest email accounts previously used, but I can arrow down and delete an account from the list so it won’t automatically popup or suggest in the future. 
    I appreciate any guidance in this matter. 

    The iOS email app stores all email recipients in a list of previous recipients which cannot be turned off. The email address autofill feature when addressing an email pulls from contacts and from the list of previous recipients which can't be prevented. There is no option to clear the list of previous recipients - not at the present time anyway.
    If you don't want any suggestions, select from contacts instead when addressing an email.

  • Running os 10.9.2 and showing that I have a flagged message,which I can't find. Also, now have a 'flagged' message mailbox that I did not add. any ideas how to clear an apparently nonexistent flag?

    running os 10.9.2 and ever since I loaded it, I am showing that I have a flagged message,which I can't find. Also, now have a 'flagged' message mailbox that I did not add. any ideas how to clear an apparently nonexistent flagge message in Maverick?  I've tried all the basics and nothing seems to show

    Have you tried resetting the SMC ?     >  Resetting the System Management Controller (SMC)

  • The safety site never tick auto fix ID andPasswords, why my security trading ac. still can auto fix my user ID.how to clear it, please teaching me to fix this problem.THANK YOU.

    M y firefox 10.0.2The safety site never tick auto fix ID andPasswords, why my security trading ac. still can auto fix my user ID.how to clear it, please teaching me to fix this problem.THANK YOU.

    http://www.omahapokernews.org
    http://www.holdempokernews.org
    http://www.7cardstudplay.net
    http://www.5cardstudplay.net
    http://www.holdemspot.org
    http://www.texasholdemstate.net
    http://www.texasholdemstate.com
    http://www.pokerbonuslist.net
    http://www.pokerdownloadz.org
    http://www.signuppoker.net
    http://www.tournamentpokerz.com
    http://www.pokercalculatorz.com
    http://www.omahaodds.org
    http://www.omahaouts.org
    http://www.texasholdemrulesonline.net
    http://www.onlineholdemtips.com
    http://www.pokerhilo.net
    http://www.poker-hilo.com
    http://www.hilopokers.com
    http://www.nolimit-holdempoker.net
    http://www.texasholdemlimits.org
    http://www.texasholdemlimits.net
    http://www.onlinepokerlimits.org
    http://www.onlinepokerlimits.net
    http://www.onlinepokerlimits.com
    http://www.texasholdemlimits.com
    http://www.7cardplayer.net
    http://www.5cardplayer.net
    http://www.omahaacademy.org
    http://www.omahapokerrooms.net
    http://www.onlinepokerroomstop.net
    http://www.playpoker-toppokerrooms.com
    http://www.texasholdemz.com
    http://www.playpokeronline-casinos.com
    http://www.texasholdem-vip.com
    http://www.gamble-poker-holdem.com
    http://www.playpoker-holdem.com
    http://www.onlinetexasholdem-poker.com
    http://www.texasholdempokeracademy.com
    http://www.vip-texasholdem.com
    http://www.playfree-poker-online.com
    http://www.texasholdem-pokerrooms.org
    http://www.toppokerrooms.ws
    http://www.toppokercasino.ws
    http://www.onlinepokercasino.ws
    http://www.playpoker-online.ws
    http://www.online-texasholdem.ws
    http://www.play-texas-holdem.ws
    http://www.internet-texas-holdem-poker.ws
    http://www.poker-player.ws
    http://www.luckyschool.com

  • How do you clear the buffer of excess key presses, in Java?

    Right now, in the game I am working on, if the user presses a key multiple times the actions will be performed as many times as it registers, even though I disallow key presses during the time that the action is taking place.
    For example, a move of 1 space can be carried out with a key press. While the character is moving, key presses are not allowed. However, if you just press the key 5 or 25 times, the character will just keep moving, once he's done with the first one.
    What I need to do is clear the buffer of key presses after an action has taken place, so that the excess keys are not registered. I know the commands to do so in C++, but not in Java.

    Well, I think you've got what I was saying backwards, or I'm not understanding what you are asking correctly.
    it is suppposed to return if isMoving is true, not false. If isMoving is true, it means that the moving animation, and actions are taking place, Which is a process that take about a second, for the player to move one space.
    Here's the code where I process the keypresses
    private void processKey(KeyEvent e) {
        if (isMoving) {return;}
        int keyCode = e.getKeyCode();
        if (!isPaused && !gameOver) {
            isMoving = true;
          if (keyCode == KeyEvent.VK_UP) {
            player.move(player.NE);
          else if (keyCode == KeyEvent.VK_DOWN) {
            player.move(player.SW);
          else if (keyCode == KeyEvent.VK_LEFT) {
            player.move(player.NW);
          else if (keyCode == KeyEvent.VK_RIGHT) {
            player.move(player.SE);
            isMoving = false;
    }And in case I need to clear up what I want to happen, and the results I'm seeing. The player, in this case, moves one space in a direction, with a single press of an arrow key. That functionality is working fine, as intended. However, I don't want you to press the key twice quickly and move two spaces. I don't want you to hold down an arrow key and move continually.
    That part of the functionality is what is not working.
    As I understand my code, pressing the key once should set isMoving to true and, therefore further presses shouldn't register until isMoving is false again, which shouldn't happen until the player moves have finished.
    But, the way that it is working now is that if I press the key 2, 3 or 20 times, as soon as one move is finished another begins. Are the key presses just sitting in the buffer somewhere waiting for isMoving to become false again? And if so, is there a function I can call to clear that buffer after a move is finished?

  • My start up disk Macintosh HD is full on my McAir OSX 10.9.4 memory 4GB. I need to clear the disk so that I can update it with the new software IOS 10.9.5 requiring 2.05GB. Need guidance on how to clear space.

    My start up disk Macintosh HD is full on my McAir OSX 10.9.4 memory 4GB. I need to clear the disk so that I can update it with the new software IOS 10.9.5 requiring 2.05GB. Need guidance on how to clear space.

    For information about the Other category in the Storage display, see this support article. If the Storage display seems to be inaccurate, try rebuilding the Spotlight index.
    Empty the Trash if you haven't already done so. If you use iPhoto, empty its internal Trash first:
              iPhoto ▹ Empty Trash
    Do the same in other applications, such as Aperture, that have an internal Trash feature. Then restart the computer. That will temporarily free up some space.
    According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation—not the mythical 10%, 15%, or any other percentage. You also need enough space left over to allow for growth of the data. There is little or no performance advantage to having more available space than the minimum Apple recommends. Available storage space that you'll never use is wasted space.
    When Time Machine backs up a portable Mac, some of the free space will be used to make local snapshots, which are backup copies of recently deleted files. The space occupied by local snapshots is reported as available by the Finder, and should be considered as such. In the Storage display of System Information, local snapshots are shown as  Backups. The snapshots are automatically deleted when they expire or when free space falls below a certain level. You ordinarily don't need to, and should not, delete local snapshots yourself. If you followed bad advice to disable local snapshots by running a shell command, you may have ended up with a lot of data in the Other category. Ask for instructions in that case.
    See this support article for some simple ways to free up storage space.
    You can more effectively use a tool such as OmniDiskSweeper (ODS) or GrandPerspective (GP) to explore the volume and find out what's taking up the space. You can also delete files with it, but don't do that unless you're sure that you know what you're deleting and that all data is safely backed up. That means you have multiple backups, not just one. Note that ODS only works with OS X 10.8 or later. If you're running an older OS version, use GP.
    Deleting files inside an iPhoto or Aperture library will corrupt the library. Any changes to a photo library must be made from within the application that created it. The same goes for Mail files.
    Proceed further only if the problem isn't solved by the above steps.
    ODS or GP can't see the whole filesystem when you run it just by double-clicking; it only sees files that you have permission to read. To see everything, you have to run it as root.
    Back up all data now.
    If you have more than one user account, make sure you're logged in as an administrator. The administrator account is the one that was created automatically when you first set up the computer.
    Install the app you downloaded in the Applications folder as usual. Quit it if it's running.
    Triple-click anywhere in the corresponding line of text below on this page to select it, then copy the selected text to the Clipboard by pressing the key combination command-C:
    sudo /Applications/OmniDiskSweeper.app/Contents/MacOS/OmniDiskSweeper
    sudo /Applications/GrandPerspective.app/Contents/MacOS/GrandPerspective
    Launch the built-in Terminal application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
    Paste into the Terminal window by pressing command-V. You'll be prompted for your login password, which won't be displayed when you type it. Type carefully and then press return. You may get a one-time warning to be careful. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator. Ignore any other messages that appear in the Terminal window.
    The application window will open, eventually showing all files in all folders, sorted by size. It may take a few minutes for the app to finish scanning.
    I don't recommend that you make a habit of doing this. Don't delete anything as root. If something needs to be deleted, make sure you know what it is and how it got there, and then delete it by other, safer, means. When in doubt, leave it alone or ask for guidance.
    When you're done with the app, quit it and also quit Terminal.

  • Hello,  I want to know how to clear the memory or buffer cash from my mac book?

    Hello,  I want to know how to clear the memory or buffer cash from my mac book? When I look at the series, it puts more and more time to load. Thank you.
    Sorry for my english, i talk french.

    Ok ce n'est pas le problème alors.
    Boot à partir de votre disque d'installation et de lancerl'utilitaire de disque. Le disque de démarrage peut être nécessaire de réparation.
    Using Disk Utility to verify or repair disks
    Ok that's not the problem then.
    Boot from your install disc and run Disk Utility. The startup disk may need repairing.

  • My "other" file is stealing my storage space and my local apple store has no idea how to find out what is in it let alone how to clear it so I can upgrade to iOS 7. He thinks my iPad is not really deleting things but storing it here.

    My "other" file is stealing my storage space and my local apple store is aware of the problem but has no idea how to view it's content or how to empty it. He thinks my deleted files are going here instead of being deleted. Raw beginner here! Need help.

    How much space is used by your Other? You may be able to reduce.
    How Do I Get Rid Of The “Other” Data Stored On My iPad Or iPhone?
    http://tinyurl.com/85w6xwn
    How to Remove “Other” Data from iPhone, iPad and iPod Touch
    http://www.igeeksblog.com/how-to-remove-other-data-from-iphone/
    With an iOS device, the “Other” space in iTunes is used to store things like documents, settings, caches, and a few other important items. If you sync lots of documents to apps like GoodReader, DropCopy, or anything else that reads external files, your storage use can skyrocket. With iOS 5/6/7, you can see exactly which applications are taking up the most space. Just head to Settings > General > Usage, and tap the button labeled Show All Apps. The storage section will show you the app and how much storage space it is taking up. Tap on the app name to get a description of the additional storage space being used by the app’s documents and data. You can remove the storage-hogging application and all of its data directly from this screen, or manually remove the data by opening the app. Some applications, especially those designed by Apple, will allow you to remove stored data by swiping from left to right on the item to reveal a Delete button.
    What is “Other” and What Can I Do About It?
    https://discussions.apple.com/docs/DOC-5142
    iPhone or iPad Ran Out of Storage Space? Here’s How to Make Space Available Quickly
    http://osxdaily.com/2012/06/02/iphone-ipad-ran-out-of-available-storage-space-ho w-to-fix-quick/
    6 Tips to Free Up Tons of Storage Space on iPad, iPhone, and iPod Touch
    http://osxdaily.com/2012/04/24/6-tips-free-up-storage-space-ipad-iphone-ipod-tou ch/
    Also,
    How to Clear Message/iMessage Cache on iPhone & iPad And Reclaim Lots of Free Space
    http://www.igeeksblog.com/how-to-clear-message-imessage-cache-on-iphone-ipad/
     Cheers, Tom

  • I keep getting the message "mail cannot connect to the server-." when it clearly can and does. How do I prevent these messages from appearing?

    See the title
    I keep getting the message "mail cannot connect to the server…." when it clearly can and does. How do I prevent these messages from appearing?
    help

    On your iPad or a Mac?
    You posted in the iMac community but your profile indicates an iPad 2.

Maybe you are looking for