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TMS320F28388D: Example project/driver code for operation for TCP communication

Part Number: TMS320F28388D
Other Parts Discussed in Thread: TMDSCNCD28388D, C2000WARE

Hi experts,

My customer is trying to perform Ethernet communication with a PC (or another F28388D) using TMDSCNCD28388D (revB).
The purpose is to use TCP communication (Modbus/TCP) over Ethernet for communication between devices.

Q1:Could you please provide reference information for sample project/driver code for operation with TCP Client and for TCP communication?
(It is best to have an OS such as FreeRTOS, but bare metal is also fine.)

Q2:Also, are there any plans to support C2000ware in the future?

[Details]
The lwip sample code (bare metal) worked successfully.
Also, they are able to run it as a TCPServer by referring to the sample code. (Connect from PC to F28388D and receive data sent from PC on F28388D)
However, they cannot connect as a TCP Client to a PC as a TCP Server. (The same applies if another F28388D is operated as a TCP Server)

A connection request (SYN) to the PC is being issued, and (SYN, ACK) from the PC is being sent.
However, since ACK is not returned on the client side, the 3-way handshake with TCP is not established and Connect cannot be established.
Although it complies with lwIp etiquette, I think the driver is probably insufficient.

Best regards,
O.H