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Forum Post: I want to send undersize packets through the c6678 switch

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Hi All,

I discovered an issue where ethernet packets less than 64 bytes in length (including CRC) are not getting thorugh the switch as the core transmits these packets out of the DSP. I am looking at the statsA module i.e. 0x2090b20 and it increments whenever i get the DSP core to send out a packet less than 64 bytes in length. I tried setting the MAC for both ports 1 and 2 on the EVM with the following call which was missing earlier

CSL_CPGMAC_SL_enableRxCSF (macPortNum)

which I assumed would allow me to send short frames yet I do not see any packets going out of the DSP.

How can I go about transmitting short frames fom the DSP and how can I see those stats incrementing in the statsB module? Would it just show up in 0x2090c64 or somewhere else too?

Thanks, Aamir


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