Description
Apr 29, 2019 The TDM MATLAB Example shows how to read TDM and TDMS files from within the MATLAB® from THE MathWorks software environment. Keep in mind that this provides only the capability to read TDM/TDMS files with the MATLAB® software environment and that the example has been tested with MATLAB® Versions.
TransferStatus
can be idle
, read
, write
, or read&write
. If TransferStatus
is idle
, no asynchronous read or write operations are in progress. If TransferStatus
is read
, an asynchronous read operation is in progress. If TransferStatus
is write
, an asynchronous write operation is in progress. If TransferStatus
is read&write
, both an asynchronous read and an asynchronous write operation are in progress. You can write data asynchronously using the
fprintf
or fwrite
functions. You can read data asynchronously using the readasync
function, or by configuring the ReadAsyncMode
property to continuous
. While readasync
is executing, TransferStatus
might indicate that data is being read even though data is not filling the input buffer. If ReadAsyncMode
is continuous
, TransferStatus
indicates that data is being read only when data is actually filling the input buffer.You can execute an asynchronous read and an asynchronous writeoperation simultaneously because serial ports have separate read andwrite pins. For more information about synchronous and asynchronousread and write operations, see Write and Read Data.
- Matlab Tutorial
- MATLAB Advanced
- MATLAB Useful Resources
- Selected Reading
So far, we have used MATLAB environment as a calculator. However, MATLAB is also a powerful programming language, as well as an interactive computational environment.
In previous chapters, you have learned how to enter commands from the MATLAB command prompt. MATLAB also allows you to write series of commands into a file and execute the file as complete unit, like writing a function and calling it.
The M Files
MATLAB allows writing two kinds of program files −
- Scripts − script files are program files with .m extension. In these files, you write series of commands, which you want to execute together. Scripts do not accept inputs and do not return any outputs. They operate on data in the workspace.
- Functions − functions files are also program files with .m extension. Functions can accept inputs and return outputs. Internal variables are local to the function.
![Folder Folder](/uploads/1/2/6/2/126288059/204903932.png)
You can use the MATLAB editor or any other text editor to create your .mfiles. In this section, we will discuss the script files. A script file contains multiple sequential lines of MATLAB commands and function calls. You can run a script by typing its name at the command line.
Creating and Running Script File
To create scripts files, you need to use a text editor. You can open the MATLAB editor in two ways −
- Using the command prompt
- Using the IDE
![Read Read](/uploads/1/2/6/2/126288059/113713536.jpg)
If you are using the command prompt, type edit in the command prompt. This will open the editor. You can directly type edit and then the filename (with .m extension)
The above command will create the file in default MATLAB directory. If you want to store all program files in a specific folder, then you will have to provide the entire path.
Let us create a folder named progs. Type the following commands at the command prompt (>>) −
If you are creating the file for first time, MATLAB prompts you to confirm it. Click Yes.
Alternatively, if you are using the IDE, choose NEW -> Script. This also opens the editor and creates a file named Untitled. You can name and save the file after typing the code.
Type the following code in the editor −
After creating and saving the file, you can run it in two ways −
- Clicking the Run button on the editor window or
- Just typing the filename (without extension) in the command prompt: >> prog1
The command window prompt displays the result −
Example
Create a script file, and type the following code −
When the above code is compiled and executed, it produces the following result −