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AM2732: Mcal Ethernet module frame loss

Part Number: AM2732

Dear expert,

When testing the am2732 mcal ethernet module, it was found that frame loss occurs when the ethernet frame is less than or equal to 64 bytes.

However, the number of times the ethernet transmit interrupt is normal.

For example, if am2732 send ten frames with each frame length of 60 bytes, am2732 would trigger <MSS_CPSW_FH_INT> irq 10 times, but network can only capture eight frames.

Frames exceeding 64 bytes are never lost.

What could be the possible cause of this problem.

Thanks.