Save Hex data in a file

dear experts

i have an application that communicates with a microcontroller and takes hex data by serial port. i wanna save the data to a file on the hard disk. i prefer for example saving ascii code in a *.dat file. i've used chr() to do this but there are some problem
      memo1.Lines.Text:= memo1.Lines.Text+chr(00); // 00 is null
      memo1.Lines.Text:= memo1.Lines.Text+chr(10); //when i save chr(10) it also saves chr(13) and vice versa
      memo1.Lines.Text:= memo1.Lines.Text+chr(13);
i don't want to save the data in a text file.
have u any idea?

regards
shaasousaaAsked:
Who is Participating?
 
atul_parmarCommented:
Hi use TFileStream.  e.g.

var
  fs : TFileStream;
  ch : array [0..3] of char;
begin
  fs := TFileStream.Create('c:\test.dat', fmCreate);
  ch[0] := #0; ch[1] := #10; ch[2] := #13;
  fs.Write(ch, 3);
  fs.Free;
end;
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