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TMS320F28388D: Online simulation debugging Ethercat will report an error

Part Number: TMS320F28388D
Other Parts Discussed in Thread: C2000WARE

I use the official development board for Ethercat development. When not in-circuit emulation, everything works fine. When I simulated online, the Ethercat protocol stack reported an error when running, as shown in the figure below. I blocked this error and there were other errors.
This brings great inconvenience to my debugging, what is the reason?