Sun May 22 17:31:14 CEST 2011

Simple checksums

On a tiny uC, which simple checksums are most effective?  The common
ones are:

  - add all bytes together
  - perform XOR

Without really thinking, I'd say that XOR is worse since it doesn't
really "smear out" the errors: all 8 bits are just independent parity
checkers, though there are 8 of them.