Encoding/Decoding hex packet
- by Roberto Pulvirenti
I want to send this hex packet:
00 38 60 dc 00 00 04 33 30 3c 00 00 00 20 63 62
39 62 33 61 36 37 34 64 31 36 66 32 31 39 30 64
30 34 30 63 30 39 32 66 34 66 38 38 32 62 00 06
35 2e 31 33 2e 31 00 00 02 3c
so i build the string:
string packet = "003860dc0000" + textbox1.text+ "00000020" + textbox2.text+ "0006" + textbox3.text;
then "convert" it to ascii:
conn_str = HexString2Ascii(packet);
then i send the packet... but i have this:
00 38 60 **c3 9c** 00 00 04 33 30 3c 00 00 00 20 63
62 39 62 33 61 36 37 34 64 31 36 66 32 31 39 30
64 30 34 30 63 30 39 32 66 34 66 38 38 32 62 00
06 35 2e 31 33 2e 31 00 00 02 3c **0a**
why??
Thank you!
P.S.
the function is:
private string HexString2Ascii(string hexString)
{
byte[] tmp;
int j = 0;
int lenght;
lenght=hexString.Length-2;
tmp = new byte[(hexString.Length)/2];
for (int i = 0; i <= lenght; i += 2)
{
tmp[j] =(byte)Convert.ToChar(Int32.Parse(hexString.Substring(i, 2), System.Globalization.NumberStyles.HexNumber));
j++;
}
return Encoding.GetEncoding(1252).GetString(tmp);
}
