How to save data in a txt file.

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• How to save data in the text file of Spartan 3

  Hi all

  I would like to kindly save the data table text file or a spreadsheet on vi using fpga spartan 3e as an fpga target. Once I added all the functions related to the operation of file, it gave an error that these functions are not supported by the target device.

  could you please help me with this

  Thank you

  Rania

  Hi David,

  Thank you for posting. You use LabVIEW? If so, what version of LabVIEW FPGA do you use? You use a host VI, or any deployment of code at your target to run? The file IO VI probably won't compile to target because they are not intended to be used on your host computer. Resources and the paths of files do not exist on the target FPGA, but rather on the side of the host. I have included a link below that describes how to transfer data between the FPGA and host. I hope this helps!

  http://zone.NI.com/reference/en-XX/help/371599F-01/lvfpgaconcepts/pfi_data_transfer/

• How constantly write data in a txt file

  Hello
  first of all, sorry for the bad English, but I have a problem to write data continuously to the txt file... I have a chart 2D with values based 2 sliders (sliders values) and some functions I want to interpolate the value by using the bilinear method... and after that the value of the sliders, interpolated value and the value of the closest points, I want to write to a file txt... for every 2-3 seconds perhaps, it would be ideal to be formatted as ::
  x y f f1 f2 f3 f4
  ..   ..  .. . .. .   ..   ...  . ..
  ... ...  ..    ...   ...   ...   ...

  but... first of all I have a problem with writing data, because every time he deletes old data and simply write a new and it is not horizontal... I am very very new to this (it's obvious) and any help will be very grateful 
  Thank you

  

  Diane beat me to it, I made a few changes to your code, so I'll post it anyway.

  

  As proposed, please go through the tutorials.

  I added an entry to the worksheet at the end node just to show it can be done at the end so. Table of building on a while loop is not very efficient memory, but it's just to show you what can be done. If you plan to go this route, initialize an array and use the subset to the table replace.

  All the best.

• How to save data from the COM port to file?

  Hi all

  can someone tell me please how to save data from the COM port on file? I transfer 1 byte of serial port... attached is the image of the vi... very basic.

  I would like to save the data in a table... I mean, 1 data--> data--> data tab 2 tab 3rd--> tab

  and so on... can anyone help?

  
  

• How to ignore the details of footer when loading data from a .txt file

  Hello experts,
  
  I import data from a txt file in my database. I jumped my header using SKIP information, but how can I ignore my footer details.
  Thank you

  Answer on your other thread:

  Txt for a required format file processing

• Inserting data in a txt file

  Hello world
  I created a form in 6i where I can open a .txt file to show me all the data in this file, so after the display of data in my form, I press a button and I insert data in my database, but if I add new data to this .txt file when I press record it says that certain values are already inserted and they cannot be repeated , because the id is not null, so what I want to ask you is how can I modify the same program to make me insert values that are not already inserted. Only new data.
  This is my code:
  Get_file_contents PROCEDURE IS
  Salida Varchar2 (1000);
  Compañía Varchar2 (5);
  Number of alert: = 0;
  OUT_FILE Text_IO. Type_de_fichier;
  -in_file Text_IO. Type_de_fichier;
  -linebuf Varchar2 (1000);
  
  Function Abre_Archivo
  Return boolean is
  
  BEGIN
  OUT_FILE: = Text_IO. Fopen(:file_name,'r');
  Return (true);
  exception
  While others then
  Return (false);
  END;
  
  BEGIN
  go_block ('MY_BLOCK');
  clear_block (no_validate);
  premier_enregistrement;
  If Abre_Archivo then
  OUT_FILE: = Text_IO. Fopen(:file_name,'r');
  End if;
  -Validation;
  
  LOOP
  Text_IO. Get_Line (OUT_FILE, Salida);
  : MY_BLOCK. SCHOOL_ID: = substr (Salida, 1, instr(Salida,',',1,1)-1);
  : MY_BLOCK. CLASS_ID: is substr (Salida, instr(Salida,',',1,1) + 1, (instr(Salida,',',1,2)-instr(Salida,',',1,1))-1);.
  : MY_BLOCK. Class_name: = substr (Salida, instr(Salida,',',1,2) + 1);
  : MY_BLOCK. STATUS: = 'A ';
  
  next_record;
  Synchronize;
  END LOOP;
  
  Text_IO. Fclose (OUT_FILE);
  premier_enregistrement;
  Exception when No_Data_Found then
  delete_record;
  Text_IO. Fclose (OUT_FILE);
  premier_enregistrement;
  END;

  OK, the constraint is the id of class only. So adjust the WHERE condition so that it only checks the class id.

• How to save an email to a file to my hard drive?

  Save Email on hard drive

  I have Windows 7 and I am confused with the new XP system.  I now get all the answers to my email to an email and sometimes do not know that I got a new email.  They all stay together.   The other question I have is how to save an email to a file to my hard drive.  I would like to save emails in my folders related discipline.  Appreciate any help

  You use Windows Live Mail?  If so, it seems that you have enabled the
  option of aggregates by "Conversation".
  On the view tab, click Conversations, Off.
   
  To save a message to your hard drive, click the icon without label to the left
  of the House, then save, save as a file.
   
  --
  Gary van, Microsoft MVP
  ------------------------------------------------
  "RickSplaine" wrote in message
  News: * e-mail address is removed from the privacy... *
  > I have Windows 7 and I am confused with the new XP system.  I now get
  > answers to my e-mail for a message and sometimes do not know that
  > I had a new email.  They all stay together.   The other issue I have is
  > How can I save an email to a file on my hard drive.  I would like to save
  > emails in my folders-related subjects.  Appreciate any help
   
   

  Gary van, Microsoft MVP (Mail)

• How about the text of the .txt file output?

  This is my code:

  #include "iostream.h".

  #include 'fstream.h.

  ofstream myfile;

  MyFile.Open ("C:\test.txt");

  MyFile < < 'text ';

  MyFile.Close ();

  But it occurs the error C1083: cannot open include file: 'iostream.h': no such file or directory.

  How about the text of the .txt file output?

  I would suggest that you do in the InDesign style to match...

  InterfacePtr stream (StreamUtil::CreateFileStreamWrite (...);

  if(Stream->GetStreamState() == kStreamStateGood) {}

  flow-> XferByte (buf, size);

  flow-> Flush();

  }

  flow-> Close();

  There are lazy as CreateFileStreamWriteLazy equivalent methods.

  Deferred methods will open the file in the application, but you will always get a valid pointer.

  See docs on its use.

• How to save data to a file by NDK.

  Intend to find a way to save the acceleration in a file, but I don't know how to do it.

  Nobody knows the answer or useful Web site or reference.

  Thank you

  It is the final solution.

  char * outname = '. '. "/ shared/documents/file.txt";

  Check the file system configuration.

  http://supportforums.BlackBerry.com/T5/Adobe-AIR-development/BlackBerry-PlayBook-file-system-layout/...

  Thanks to the reference page.

  Go go drill the NDK playbook.

• How to save data to file (.xls)

  I need save data in the format .xls - Microsft Excel... LabVIEW allows only save it in .xlsx format. You know someone that is possible to save the .xls file? Thank you for your help.

  
  

• Problem with registration of data in the txt file

  Hello

  I have 2009 Labview, Labview real-time 2009 and cRIO 3.3.0. I also NEITHER cRIO-9024 more cRIO-9112 chassis and modules.

  I would like to save the data measured modules in the txt files, but I want to do in a period of time to time desire. For example, I want to save data of measurements of 60 seconds and repeat every one hour. I of the project (in the file attachment vi) and normally it works fine but I noticed that the recording of the data is not correct. I mean it seams to save what was in the memory before. That's the problem with Windows XP I have check with another computer with Vista and it seems to be ok. It seems that on XP the buffer (refnum?)  is not clear and it retains the previous values.

  Can someone explain to me why it happened and how I can obey Windows XP? Or maybe there are techniques to clear the memory buffer/refnum for rescue?

  Thanks for any help.

  Kind regards

  Kamil

  
  

• write data to a txt file

  Hello.

  I use visa and serial Protocol in my vi n want to save the data from MCU in labview to txt file format which, in the data record in each row not each tab.

  I want to just save not given time. Meanwhile, I plot the data in the chart.

  I search in the forum and consider the posts but can't find a solution.

  
  

• How to share data in the swc files?

  I can save the shared data (such as dsn) in application.cfm so all cfm files can read.
  
  But how to share data in swc files as application.cfm. I heard application.cfc, may I use share data in the swc files?
  
  Don't you think that if it is correct that application.cfm and application.cfc exist in the site?
  
  Thank you
  
  Mark

  IIRC, you can't use both. If you Application.cfm and Application.cfc in the same folder, CF will ignore Application.cfm.

• How to save the string in a file with some special characters

  Hello

  I m using MD5 - llb to create a password.

  So, I want to save this MD5-string to a file and read it later abd compared again.

  Works perfectly with a proplem:

  Some Word create a '\r' in the string of MD5 and when I save this string in a file and read it at the time its read as a '\n' for the comparison does not work.

  My question is: How can I record a string exactly as if it were somewhere and read back (also the invisible characters)

  For example, the word: heinz

  is in MD5: \r\FB^\07\A6\07T\C7\D9\C2\94\AB\C9\1DS\95 (string as display codes indicator)

  When I save the string in a file, then I rerad back: \n\FB^\07\A6\07T\C7\D9\C2\94\AB\C9\1DS\95

  I used the "write text file" and "read text file".

  What should I use to record and play back the same thing?

  THX

  Have you tried right click and deselection "convert EOL?

• Record a continuous flow of data in a txt file?

  Hello world! I'm relatively new to the ICB and I was wondering if I could get help on something. I'm trying to modify a sample file that reads permanently a tension from a daq card. I would like to save this data in a text file, but I am relatively new to the C programming language (I'm a java person) and cannot distinguish the location data. Once I know where the data is, I think that I can write the data using a sort of loop and the fprintf function. Any help would be greatly appreciated. This is the code for the method StartCallBack of the "Cont Acq - Int Clk" file that I use:

  int CVICALLBACK StartCallback(int panel, int control, int event, void *callbackData, int eventData1, int eventData2)
  {
  Int32 error = 0;
  Chan Char [256];
  uInt32 sampsPerChan;
  float64 min, max, rate;
  The int journal;
  char errBuff [2048] = {'\0'};

  If (event == EVENT_COMMIT) {}
  GetCtrlVal (panel, PANEL_CHANNEL, chan);
  GetCtrlVal (Panel, PANEL_MINVAL, &min);)
  GetCtrlVal (Panel, PANEL_MAXVAL, &max);)
  GetCtrlVal (Panel, PANEL_RATE, &rate);)
  GetCtrlVal (panel, PANEL_SAMPSPERCHAN, & sampsPerChan);
  SetCtrlAttribute (panel, PANEL_STRIPCHART, ATTR_XAXIS_GAIN, 1.0/rate);
  Journal = (int) log10 (rate);
  SetCtrlAttribute (panel, PANEL_STRIPCHART, ATTR_XPRECISION, log);
  SetCtrlAttribute (panel, PANEL_STRIPCHART, ATTR_POINTS_PER_SCREEN, sampsPerChan);

  /*********************************************/
  DAQmx Configure Code
  /*********************************************/
  SetWaitCursor (1);
  DAQmxErrChk (DAQmxCreateTask("",&gTaskHandle));
  DAQmxErrChk (DAQmxCreateAIVoltageChan(gTaskHandle,chan,"",DAQmx_Val_Cfg_Default,min,max,DAQmx_Val_Volts,));
  DAQmxErrChk (DAQmxCfgSampClkTiming (gTaskHandle",", rate, DAQmx_Val_Rising, DAQmx_Val_ContSamps, sampsPerChan));
  DAQmxErrChk (DAQmxGetTaskAttribute (gTaskHandle, DAQmx_Task_NumChans, & gNumChannels));

  If ((gData =(float64*) malloc (sampsPerChan * gNumChannels * sizeof (float64))) == NULL) {}
  MessagePopup ("error", "not enough memory");
  GoTo error;
  }

  DAQmxErrChk (DAQmxRegisterEveryNSamplesEvent(gTaskHandle,DAQmx_Val_Acquired_Into_Buffer,sampsPerChan,0,EveryNCallback,));
  DAQmxErrChk (DAQmxRegisterDoneEvent(gTaskHandle,0,DoneCallback,));

  /*********************************************/
  Starting code DAQmx
  /*********************************************/
  DAQmxErrChk (DAQmxStartTask (gTaskHandle));

  SetCtrlAttribute (panel, PANEL_STRIPCHART, ATTR_NUM_TRACES, gNumChannels);
  SetCtrlAttribute(panel,PANEL_START,ATTR_DIMMED,1);
  }

  Error:
  SetWaitCursor (0);
  If {(DAQmxFailed (error))
  DAQmxGetExtendedErrorInfo (errBuff, 2048);
  If (gTaskHandle! = 0) {}
  /*********************************************/
  Stop DAQmx code
  /*********************************************/
  DAQmxStopTask (gTaskHandle);
  DAQmxClearTask (gTaskHandle);
  gTaskHandle = 0;
  If (gData) {}
  Free (gData);
  gData = NULL;
  }
  SetCtrlAttribute(panel,PANEL_START,ATTR_DIMMED,0);
  }
  MessagePopup ("DAQmx Error", errBuff);
  }
  return 0;
  }

  Hello supercharizard,

  It comes to the appropriate line in the code that you posted that can lead you to "where the data is.

  DAQmxErrChk (DAQmxRegisterEveryNSamplesEvent(gTaskHandle,DAQmx_Val_Acquired_Into_Buffer,sampsPerChan,0,EveryNCallback,NULL));
  

  DAQmxRegisterEveryNSamplesEvent function establishes a callback as a routine function that will be called when at least a predefined amount of data is acquired. The part highlighted in the line is the reminder issued on this event, that you can study and modify the data adding streaming.

  This knowledge base entry gives a brief explanation of the events available. There are many other resources on DAQmx works as well in Help and online on this site that you should carefully study to better understand data acquisition.

  Regarding the release, there are several ways to do: here are two examples that produce a binary file (more fast, but you will need to write code to read data back) or add it to an ASCII file aligned in columns (slower but readable with a text editor, which is no code needed to read the data back). Another alternative is to make use of TDM stream on the disk library: this last resource is notably more complicated then I suggest you approach after some more practice on the fundamentals.