topic Re: Ethernet Programming -- Checksums in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Ethernet-Programming-Checksums/m-p/518392#M2646 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by MikeSimmonds on Sun Aug 04 11:41:35 MST 2013</STRONG><BR /><SPAN>Come on guys. NOBODY has opinions anymore?</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:33:31 GMT lpcware 2016-06-15T17:33:31Z Ethernet Programming -- Checksums https://community.nxp.com/t5/LPC-Microcontrollers/Ethernet-Programming-Checksums/m-p/518391#M2645 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by MikeSimmonds on Fri Jul 26 07:26:48 MST 2013</STRONG><BR /><SPAN>My project uses the EMAC block of the LPC1778 -- but presumably this peripheral is common to other NXP parts.</SPAN><BR /><BR /><SPAN>Because I reject any received frame with a CRC error (Ethernet level FCS), I do not bother to verify</SPAN><BR /><SPAN>the various checksums.</SPAN><BR /><BR /><SPAN>My reasoning is that if an error occured that might be detected by checksum verification, it would also</SPAN><BR /><SPAN>cause a CRC error at the frame level [and the CRC is much stronger than a mere checksum].</SPAN><BR /><BR /><SPAN>Does anyone care to comment on this strategy? Or provide a counter example.</SPAN><BR /><BR /><SPAN>Cheers, Mike</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 17:33:31 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Ethernet-Programming-Checksums/m-p/518391#M2645 lpcware 2016-06-15T17:33:31Z Re: Ethernet Programming -- Checksums https://community.nxp.com/t5/LPC-Microcontrollers/Ethernet-Programming-Checksums/m-p/518392#M2646 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by MikeSimmonds on Sun Aug 04 11:41:35 MST 2013</STRONG><BR /><SPAN>Come on guys. NOBODY has opinions anymore?</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:33:31 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Ethernet-Programming-Checksums/m-p/518392#M2646 lpcware 2016-06-15T17:33:31Z