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Original question:

AM6548: How to send a TCP packet of any size

AM6548: How to send a TCP packet using a switching hub

user6502748
Prodigy 240 points

Part Number: AM6548

Dear TI, hello

Because my previous question has been locked, I ask this problem again.

I would like to send TCP / IP packets larger than 79 bytes to my PC.

However, on the receiving side, I got 74 bytes payload instead of 79 bytes.

I found that when I used a switching hub between AM6548 and PC, this problem happened.

When I directly connect AM6548 to my PC and transmit a TCP/IP packet, there is no problem.

Now, I use the TCP/IP program made in the related question.(modified_tcpEchoFunction.c)

Could you please tell me what caused this problem?

Thanks and regards,

Naoya Kimura