RE: OpenTCP/http_server.c

Hi Bob,
OpenTCP was the path we were going down to have a nice open source
Ethernet stack available for ColdFire but the OpenTCP company's resource
to maintain it had left (long ago now) and they pulled the open source
licensing so we/FSL turn to partnering with InterNiche to create a free
ColdFire TCP/IP Lite Ethernet stack with (simple) multitasking OS.
Take a look at its code base as it can handle upload of file.
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=COLDFIRE_
TCPIP then click the download tab.
Regards, 
David 

David E Seymour
Come to FTF 2008 June 16th through the 19th in Orlando

http://www.freescale.com/ftf 

-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of Bob Furber
Sent: Monday, June 09, 2008 7:10 PM
To: Seymour David
Subject: [ColdFire] OpenTCP/http_server.c

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Forgive me if this is not the appropriate list for posting an OpenTCP 
question. But I have not succeeded in finding a more appropriate list.

I am trying to port the OpenTCP stack to the ColdFire and I am running 
into problems uploading files (target -> client) that are too large to 
fit in one frame. I get a TCP_EVENT_REGENERATE event.

My understanding is that a TCP_EVENT_REGENERATE event is very rare. So, 
in digging through the code, I notice something that does not seem quite

right: So long as there is unacknowledged data (i.e., file) remaining to

be sent, https_run() in the main loop loads the TCP Tx buffer with data.

It does NOT CHECK if the previous frame has been acknowledged. By doing 
this, is there not a risk that https_run() could overfeed the client.

Can anyone shed some light on this?

Thanks,

Bob Furber
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