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Author Topic: CRC algorithm  (Read 2875 times)
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Graynomad
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« on: November 29, 2012, 02:14:09 PM »

It looks like I'm settling on the CAN 15-bit CRC algorithm with the 0x62CC polynomial.

This is optimised for small data packet sizes and has a hamming distance of 6 (up to 5 corrupted bits detected) for data between 64 and 112 bits. As the checked part of an ArdweeeNET frame is 96 bits in length this is a good match.

This does however mean using software to generate the CRC as opposed to using the LPC's built-in hardware CRC generator. Probably a price worth paying to get the best CRC.
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Rob, aka the GRAYnomad
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