- Embedded TCP/IP stack selection
- Posted by Ignacio G.T. on April 23rd, 2007
Just three contenders are left in my particular arena: uC/TCP-IP,
CMX-MicroNet and lwIP. Price, capabilities and source analysis are on my
side. What I'm looking for from your appreciated minds are first-hand
experiences on any of these three stacks, if freely available.
Target: Renesas M32C with uC/OS-II. Previous experiences from me with
TCP/IP stacks: Wind River's one, as embedded in VxWorks 5.4 (quite
reliable, in my opinion).
Thanks.
--
Ignacio G.T.
- Posted by Vladimir Vassilevsky on April 23rd, 2007
Ignacio G.T. wrote:
A TCP/IP stack is heavily relying on the services provided by OS.
Porting a stack to a different OS is a quite an involved piece of work.
Thus, I would suggest using the stack which comes with your target OS.
Vladimir Vassilevsky
DSP and Mixed Signal Design Consultant
http://www.abvolt.com
- Posted by Paul Bosselaers on April 23rd, 2007
Vladimir Vassilevsky wrote:
CMX-MicroNet can be used without an OS or with an OS through a simple
porting layer. This porting layer is already done for the CMX-RTX and
CMX-Tiny+ OSes. CMX-MicroNet supports a wide variety of processors and
compilers out of the box so getting it running should not be "an
involved piece of work".
Paul Bosselaers
CMX Systems
- Posted by Chris Hills on April 23rd, 2007
In article <xD5Xh.461$RX.217@newssvr11.news.prodigy.net>, Vladimir
Vassilevsky <antispam_bogus@hotmail.com> writes
Quite a few TCP/IP stacks are independent of any OS.
--
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/
/\/\/ chris@phaedsys.org www.phaedsys.org \/\/\
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
- Posted by Vladimir Vassilevsky on April 23rd, 2007
Chris Hills wrote:
It is required to have the dynamic memory management and the timekeeping
services at the least. Also, the socket interface without multithreading
does not make much sense.
VLV
- Posted by Stephen Pelc on April 23rd, 2007
On Mon, 23 Apr 2007 21:20:34 GMT, Vladimir Vassilevsky
<antispam_bogus@hotmail.com> wrote:
The code involved to write a heap, timekeeping, and scheduler is
mostly high level, and is minimal compared to the code required
by a TCP/IP stack. I maintain an embedded TCP/IP stack. Porting
the three items you mention is far less work than writing a new
Ethernet driver.
Stephen
--
Stephen Pelc, stephenXXX@mpeforth.com
MicroProcessor Engineering Ltd - More Real, Less Time
133 Hill Lane, Southampton SO15 5AF, England
tel: +44 (0)23 8063 1441, fax: +44 (0)23 8033 9691
web: http://www.mpeforth.com - free VFX Forth downloads
- Posted by Vladimir Vassilevsky on April 23rd, 2007
Stephen Pelc wrote:
You know everything about your own stack, thus it is not a big deal *for
you* to port it to any platform. However I would prefer a solution
rather then "do it yourself" package. Why bother porting somebody else's
stack when there is a TCP/IP native to OS available?
VLV
- Posted by FreeRTOS.org on April 24th, 2007
"Vladimir Vassilevsky" <antispam_bogus@hotmail.com> wrote in message
news:xD5Xh.461$RX.217@newssvr11.news.prodigy.net.. .
I have ported lwIP and uIP for use with FreeRTOS.org on a couple of
processors, and the effort was minimal. Especially in comparison to writing
the MAC driver. For the path of least resistance it might be worth
considering who has the best support for your chosen processor rather than
your chosen OS.
Although the OP has not mentioned other requirements, such as throughput,
number of connections, protocols, etc. These would naturally narrow the
selection anyway.
--
Regards,
Richard.
+ http://www.FreeRTOS.org
A free real time kernel for 8, 16 and 32bit systems.
+ http://www.SafeRTOS.com
An IEC 61508 compliant real time kernel for safety related systems.
- Posted by Stephen Pelc on April 24th, 2007
On Mon, 23 Apr 2007 17:41:25 -0500, Vladimir Vassilevsky
<antispam_bogus@hotmail.com> wrote:
When resources are constrained, and the generalised OS and stack
are too big. Otherwise, go ahead and use an O/S with a stack.
Other reasons are to do with having full source code and so on.
Stephen
--
Stephen Pelc, stephenXXX@mpeforth.com
MicroProcessor Engineering Ltd - More Real, Less Time
133 Hill Lane, Southampton SO15 5AF, England
tel: +44 (0)23 8063 1441, fax: +44 (0)23 8033 9691
web: http://www.mpeforth.com - free VFX Forth downloads
- Posted by msg on April 24th, 2007
Ignacio G.T. wrote:
Can you let us know your experience with uC/TCP-IP? Were you able to
build and test it without upfront fees?
FWIW, the 'skyeye' project has ports of lwip on uC/OS-II as a starting
point for other porting efforts; I am porting it to my favorite arch
over time...
Regards,
Michael
- Posted by pbreed@netburner.com on April 24th, 2007
If you are not married to the M32C then take a look at:
http://www.netburner.com/products/de...velopment.html
TCP/IP, RTOS development tools and hardware all ready to use for $99.00
Paul
