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Sniffing COM Ports with Wireshark

Hello all,

I am working on a university project which involves analyzing IP packets from a network using a Blackfin BF537 microcontroller, which contains a minimal tcp/ip stack, and a workstation which runs Wireshark on a Linux-based OS. My question is: is it possible for Wireshark to sniff and analyze the IP packets from an UART interface? The reason for this approach is that, if i had used an Ethernet cable, it would have interfered with the network, and would have produced unwanted results.

P.S. using a COM Port sniffer would not suffice, as it only spies data.