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AWR2944EVM: Why is the Enet so fragile?

Part Number: AWR2944EVM


Tool/software:

Hi Designer,

I encounter a problem when transferring pointCloud data through Enet in DDMA mode.

1.when size of data transferred to PC excesses TCP_MSS(1460B) defined in <lwipopt.h>, netconn_write will result in crush on the board.

2.I try to divide data into segments manually to bypass this problem, it will crush as well if there is not a break of 50ms at least  between transfers.

Regards,

Zisheng Wang.