I convert float to byte[] array with this code:
byte[] bytes = ByteBuffer.allocate(4).putFloat(number).array();
For example if I put the number 0.02f I get the bytes [60,-93,-41,10]
Then I try to write this byte[] to file with this code:
FileOutputStream fos = new FileOutputStream(file);
fos.write(bytes);
dbf.close();
On most platform in HEX-editor this file looks like this: 3C A3 D7 0A. But on special device same code gives this: 3C A3 D7 0D 0A. Before each 0A 0D appears.
I know than 0A is a LF and 0D 0A is a CRLF but I do not know how this can be.
With what it can be connected ?
It sounds like when the data is transferred to your "special device" it is being translated as if it was a text file. This will corrupt the file in the manner you see. e.g. FTP has a text transfer mode which does this.
You shouldn't confuse text and binary. You are writing a binary format and if you read it as a binary format, new lines are not relevant.
Don't read it as text as it's not text and you won't have a problem.