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From: | Chuck Kuecker |
Subject: | [lwip-users] TCP not sending initial ACK |
Date: | Wed, 26 Aug 2009 10:19:12 -0500 |
Hello, I’ve got another problem. I am receiving a large (~132
K) HTTP file via TCP. The very first packet, which has the file length, is
received, but not ACKed. The server times out and resends this packet, which is
properly ACKed and all subsequent packets are handled properly. I had this code working a couple of months ago, and
something has changed since. I’ve tried changing the frequency of LWIP
interrupt handler calls, both greatly slowing and speeding them up, with no
apparent change in behavior. It’s only with TCP reception in this case
that I see a problem. Other TCP exchanges work fine, with the same code
structure in the two callback functions. Any ideas? Chuck Kuecker |
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