2008/9/20 Nick Thomas <[EMAIL PROTECTED]>: > > Hi, > > I know this isn't much to go on, but I think I am getting TCP checksum > errors. > > I am using an ST7101 chip, running OS21. > > I have got much of the LWIP stack running, DHCP works and DNS resolution is > fine (I think both of these use UDP). > > But, the httpd example is giving wireshark some TCP Checksum errors, and the > PC based browsers doesn't get the response from the HTTP GET request. > > Now, because anything using the UDP half of the transport layer seems fine, > I am assuming that I have a problem somewhere in the TCP half, specifically > in the checksum calcs. > > I have read elsewhere on these lists that there may be some hardware level > checksum calcs happening, I need to read my docs to see if that is being > enabled on my chip. I think that there is some hardware level checksum calcs on Sti7109. If you use the STMAC on it . Checksum must be cal by CPU. Why not use the gdb to see what happens in LwIP? > Do the above sound like reasonable assumptions? > > > > Help/comments/advice appreciated. > > Regards > > Nick > > ----------------------------- > Nick Thomas > Email: [EMAIL PROTECTED] > > > > _______________________________________________ > lwip-users mailing list > [email protected] > http://lists.nongnu.org/mailman/listinfo/lwip-users >
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