unsigned bytes

Similar Questions

• What type of table to choose to combine several unsigned bytes

  Hi, I have several variables of unsigned bytes and want to build entire tabular form for future use in save the configuration. Could someone tell me what kind of table, should I use? Or should I use "build the table? '

  
  

• Convert unsigned bytes (U8) timestamp date.

  Leave a device of the CAN, I the date and time in the form of a series of unsigned bytes seven (U8) as follows:

  Example of century 20

  Example of year 10

  Example of month 4

  Example of day 26

  Example hours 20 (20:00)

  Example of min 20

  S example 1

  that would be:

  26/04/2010

  20:20:1

  What is the best approach for convertng these seven values in a DateTime format only to display purposes?

  Thank you.

  Chuck,

  Here are some ways to do it, but of course there are others.

  The first for the digital inputs or concatenate a string with the second.

  

  Hope that one of them is what you need.

  * Edit - added combining or century & year

• Y at - it an easy way to convert a 'table 1 d of channels' to a '2d array of unsigned bytes (U8-8 bit wide).

  Y at - it an easy way to convert a 'table 1 d of channels' to a '2d unsigned byte array"(U8-8 bit wide).

  Hi chuck72352,

  It should work.

  Mike

• Convert C unsigned char in a string

  I'd like to convert this C code in LabVIEW.  I'm a little confused on how to load the SendData in my .so or .dll (for windows).  The supplied CPCI75C3_SER_TransmitBuffer function takes in a string. How to convert this table to unsigned char in string?

  unsigned char SendData [8];

  ...

  for (i = 0; i< 8;="">
  SendData [i] = (unsigned char) i;           / * incremental data * /.

  / * Add a delay here for the receiver is ready * /.
  nai_msDelay (500);

  nNumWordsSend = i;
  printf ("\nSending %d words... (', nNumWordsSend);
  status = CPCI75C3_SER_TransmitBuffer (map, nMod, nChan SendData & nNumWordsSend); / * send data * /.

  Seems to me that call library function node is configured correctly.

  EDIT: you updated your post after I replied.  An unsigned char is identical to an unsigned byte (U8) but how you configured it now is fine, no need so that she takes a byte array, unless I misunderstand what you're asking.

• unsigned primitives

  Hello world
  
  I would like to write an import of BMP in Java format. The problem is that Java does not support unsigned primitive types. There are many fields declared in file BMP in full not signed or not signed short. Now if I put them in a primitive short or int in Java, I understand that I will get the wrong results, the figures will not be represented correctly. I don't know what happened exactly. So, how do I import these fields correctly. What is a workaround?
  
  Thank you
  PR.

  Aardenon wrote:
  Now if I put them in a primitive short or int in Java, I understand that I will get the wrong results, the figures will not be represented correctly.

  Not really. The binary model would be exactly the same, the only difference is the way that must be posted. Let's say you have an unsigned byte 0xFF, you need to read in. You are reading in there and print it out and Java displays as -1, which corresponds to a signed value, even if the actual value is supposed to be 255.

  So, how do I import these fields correctly. What is a workaround?

  You can use a larger variable, such as int for bytes and shorts and a long for integers (ints). It's the easiest way to do. Of course, you can also use the regular size variable and just make sure that when conversions occur treat you properly (usually involving the bitwise AND operator).

• How to send the picture of u with labview

  Hello

  How to send table unsigned 32-bit via UDP.

  How to convert the 32-bit unsigned byte array table.

  
  

• Reading of data of VISA

  Hello

  I am a beginner total with labview and searched but to no avail.

  I MC who ensures the pumping data from five sensors, each sensor comes out a little higher and a little weak. I created a VI that reads in the data and converts the string to an array of unsigned bytes. My problem is I have trouble separating each individual byte so that I can add the two bytes for a decimal value.

  You want to combine the U16 data in a table and then write on the Board.  You must also use an array of strings to tell the PDM write what channel names to use.  Additionally, make sure that you open / create the file before the loop.  And finally, make sure you close your serial port and your file.

  

• How to convert the string with numbers in U8 with ascii

  Hello

  I have a string with only numbers 0. 9 paper.

  Now, I want to convert to table-U8.

  He works here, but now the problem: How can I change each character to its ascii value?

  Example:

  entry: 123 (string)

  output: x 31, x 32, x 33 (U8-array)

  Thanks for the help

  It's very easy

  String to Byte Array Function
  Have the Palette: string/array/path Conversion functions

  Converts a string to an array of unsigned bytes. Each byte in the array has the ASCII value of the character corresponding to the string.

• CreateEvent() returns 0

  Hi all

  I use this code to call the CreateEvent function:

  

  It works very well, but not always. When I run for the first time, it returns the correct value non-zero. But when I call it a second time, the return value is 0. Then, qualifying for the third time will result in return nonzero and 4th - zero new etc.

  Does not help using the CloseHandle() function between calls.

  You do not call the function correctly.

  Use not signed-32-bit values for the first and fourth entries and values of unsigned bytes (8 bits) for entries from second and third. Nothing pointer.

  When you troubleshoot for this, it works every time

• problem with a type of data encryption / decryption

  Hello
  
  I'm developing an application in which c ++ app will send encrypted table bytes unsigned using JNI for Java application that will decrypt the same and make the continuation of the procedure.
  
  As the unsigned c++ byte array is using before sending it to java he converts an array of jshort we do not want to lose the original array element values. So on the side of java, we will get the encrypted short table, to decipher the same I need the same converted to array of bytes as Cipher.dofinal (byte []) method accepts the byte array and I'll have short table. If I have the same assigned in byte array, then I will lose the original values of the short table. How can I solve the problem? How can I receive the array of encrypted bytes unsigned of C++ and decrypt the same in java?
  
  Published by: user3516155 on March 23, 2011 12:41 AM

  Question: have you tried simply to pass the array of bytes without any conversion of short?

  A signed and unsigned bytes are on the data level 100% equal to the other. the difference in interpretation.

• Problem with cloning a ByteArray extended

  Hello
  
  

  I expanded the ByteArray class, as follows:

  
  [RemoteClass(alias="MyByteArray")]
  public class MyByteArray extends ByteArray {}
  

  and cloned an instance of this class using the ByteArray #readObject () /writeObject (). However, for some reason, the cloned object is an instance of ByteArray instead Mon_tableau_octets. This is illustrated in the following example:

  
  registerClassAlias("MyByteArray", MyByteArray);
  var b1:MyByteArray = new MyByteArray();
  var tmp:ByteArray = new ByteArray();
  tmp.writeObject(b1);           
  tmp.position = 0;
  var b2:* = tmp.readObject();
  trace( b2 is MyByteArray ); // prints false
  trace( b2 is ByteArray ); // prints true
  

  Also, when I add fields customized in the Mon_tableau_octets class, they are not saved with writeObject() and or cloned...

  Can someone explain to me why the cloned object is not an instance of Mon_tableau_octets?

  I know there are other ways of cloning, but I want to know why it does not work.

  Thank you very much!

  The first unsigned byte, 12 (0xC), is a marker byte array. See http://opensource.adobe.com/wiki/download/attachments/1114283/amf3_spec_05_05_08.pdf?versi on = 1

  My guess is that the AMF serialization sees a ByteArray and does not take into account the subclasses. No guarantee, but you can watch the flash.utils.Proxy, ByteArray instead of subclassing.

• Install the IFEN SYSTEM on Linux

  Hello
  
  For the test I want to install a server of RDB database on a desktop Linux, is this possible?
  
  Thank you.

  Search for BLOB to http://download.oracle.com/otn_hosted_doc/rdb/pdf/sql_ref_v72_part1.pdf

  In a list, you can store unstructured data such as large amounts of text,
  long strings of binary input from a data collecting device, or graphics data.
  Any data type can be stored and retrieved from a list. The data is stored in
  unstructured bytes. For example, you can store character data in a list and
  then interpret it as hexadecimal data. Except for the length of the segments,
  Oracle Rdb does not know anything about the type of data contained in a list.
  There is no limit on the number of segments within a list.
  Each segment stored on a page is referenced by the line index structure, which
  uses a word offset and a word length. The page structure imposes a segment
  size limit of 65,535 unsigned bytes.
  

  I wouldn't do anything with rdb unless you have access to a person with experience.

• How to convert to unsigned int byte array?

  Greetings,
  
  I have no particular knowledge of Java programming, and I have a problem with a conversion.
  
  The exception thrown is "number Format Exception for the input string:"249"when I run the following code:
  
  ReadBytes = SocketInput.Read (bMessage);
  NetMessage = new String (bMessage);
  NetMessage = NetMessage.substring (0, readbytes);
  
  If (NetMessage.Equals ("NORES"))
  NetMessage = '0 '.
  
  int Res = 0;
  Try
  {
  RES = Byte.valueOf (NetMessage);
  }
  catch (NumberFormatException nfe)
  {
  AddMessage ("Number Format Exception" + nfe.getMessage () + "[" + bMessage.toString () + "]");
  }

  The java Byte / byte data type is signed and contains values from-128 to 127. Why not use Integer.valueOf () instead (which is not signed or said by the way) and look
  [url http://download.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html] in Java primitive data types.

  In your code example, there is no byte (byte []) array, while mention you in the subject...

• fwrite error: try to write 26 bytes of file and the problems

  I'm writing 26 Hex bytes data file using fwrite and I have unknown problems because of which has written 27 bytes

  /////////////////////////////////// Code ///////////////////////////////////////////////////////////////////
  FILE * READ;
  READ = fopen ("DataReceived.dat", 'w'); opening the file for writing

  unsigned char data2send [26] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
          
  data2send [0] = 0xEB; conferment of the data
          
  data2send [1] = 0 x 90; conferment of the data

  data2send [10] = 0x08; / / data assignment
           
  crcsent = calCRC16 (data2send, 24); calculation of 24 bytes CRC and the addition of crc (16 bit) to last two bytes of data
          
  data2send [24] =(crcsent>>8) & 0xFF; Added to the second last octet CRC
          
  data2send [25] = (crcsent & 0xFF);   CRC has added up to the last byte
         
  If (ComWrt (coms, data2send, 26) == 26) / / send data to com port
  {
               
  fwrite (data2send, 1, 26, READ); ===> writing data in the file where there is problem
      
  }
  /////////////////////////////////////////////////////////////////////////////////////////////////////////////

  Production (WRITTEN in the file) should be:

  0xEB 0 X 90 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x08 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0 x 00 0x0A 0xA1

  Output that I get the file (which is incorrect) and do not do because I've specified 26 bytes to write

  0xEB 0 x 90 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x08 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0 x 00 0x0D 0x0A 0xA1

  How 0x0D is added to my data, even though I'm only add data Byte 0,1,10,24,25

  When I write 26 bytes then how 27 bytes are written to the file?

  Thanks in advance

  arfaoui

  I can only imagine that the problem may arise from opening the file in text mode and write on it (0x0A) a line break character: the system can automatically add a CR (0x0D) in order to maintain the standard CRLF. Try opening the file in binary mode instead (fopen with "wb" specification).