Text File Functions

Additional notes

Writing and reading a line from a text file is always accomplished according to the scheme:

- Check if the directory is available

- Open the file

- writing or reading or counting the row(s)

- Close the file.

Writing and reading is done as long as the input bWrite or bRead a HIGH signal.

The lines are internally terminated with 0x0D and 0x0A when writing.

The lines are read starting from the specified line number for as long as a 0x0A is found. A previous 0x0D as well as the 0X0A will not be output.

Writing in large files or reading from large files or counting may take a longer period of time (increasing with the size of the file).

More:

Name

Directory

Reset

Name

- The file name can have up to 17 characters

- If the information about directory + name is shorter than 18 characters, it can be dispensed to the input of the path. For example, Test/file.txt as name creates a subdirectory in which the file is stored.

- Windows

For all information no upper/lower case is considered

- Q.station

For all information, the upper/lower case is considered

Directory

Windows

- For all information no upper/lower case is considered

- as a separator "\" are provided

- if no directory is specified, the file will be created or read in the directory  "File Services"

Q.station

- For all information, the upper/lower case is considered

- as a separator "\" are provided

- if no directory is specified, the file will be created or read in „/home/user1/fs/online/“ (is not recommended)

- recommendation:

    - specify the device index

    - e.g.:

        * hd0 – using internal directory

        * sd0 – using sd c- card

        * etc.

Reset

If at the input bReset a HIGH signal applied:

- an already existing file will be restarted from the beginning (overwritten)

- a new file is started, if the name or directory has been changed in between.