lpcware

Ethernet Programming -- Checksums

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by MikeSimmonds on Fri Jul 26 07:26:48 MST 2013
My project uses the EMAC block of the LPC1778 -- but presumably this peripheral is common to other NXP parts.

Because I reject any received frame with a CRC error (Ethernet level FCS), I do not bother to verify
the various checksums.

My reasoning is that if an error occured that might be detected by checksum verification, it would also
cause a CRC error at the frame level [and the CRC is much stronger than a mere checksum].

Does anyone care to comment on this strategy? Or provide a counter example.

Cheers, Mike

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