Hi All,
I am trying to send information from my vb.Net
app to a piece of hardware with an embedded
TCP/IP controller using sockets.
I can send information so the sockets are working
but the data is garbage!!!
It works if the ascii of the character I am sending
is less than 127, however, if I send ascii 128 or
above (up to 255, obviously) then things start to
go wrong.
I am sure it is to do with the encoding of the
byte and thee fact that it seems to be signed
as oppossed to unsigned.
Decimal 1 in binary is
00000001
Decimal 127 in binary is
011111111
In an unisgned int, decimal 128 is
100000000
and decimal 255 is
11111111
How can I get this to be outputted to my
embedded controller using sockets???
Please help.
This is what I have used for my output stream to the
socket.
Dim writer As New IO.StreamWriter (m_Client.GetSt ream(),
System.Text.Enc oding.ASCII)
Regards,
Jason.
3  2007 
Hi,
Encoding.Ascii supports only ASCII (characters with values between 0 and
127, as you have observed). You should use a binary Writer, not Text.
Dim writer As New BinaryWriter(St ream)
Dick
--
Richard Grier (Microsoft Visual Basic MVP)
See www.hardandsoftware.net for contact information.
Author of Visual Basic Programmer's Guide to Serial Communications, 4th
Edition ISBN 1-890422-28-2 (391 pages) published July 2004.
Hi,
Encoding.Ascii supports only ASCII (characters with values between 0 and
127, as you have observed). You should use a binary Writer, not Text.
Dim writer As New BinaryWriter(St ream)
Dick
--
Richard Grier (Microsoft Visual Basic MVP)
See www.hardandsoftware.net for contact information.
Author of Visual Basic Programmer's Guide to Serial Communications, 4th
Edition ISBN 1-890422-28-2 (391 pages) published July 2004.
Thanks DIck,
that works great.
Jason.
On Thu, 23 Sep 2004 10:27:25 -0600, "Dick Grier"
<di************ **@msn.com> wrote: Hi,
Encoding.Asc ii supports only ASCII (characters with values between 0 and
127, as you have observed). You should use a binary Writer, not Text.
Dim writer As New BinaryWriter(St ream)
Dick This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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I am trying to send information from my vb.Net
app to a piece of hardware with an embedded
TCP/IP controller using sockets.
I can send information so the sockets are working
but the data is garbage!!!
It works if the ascii of the character I am sending
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