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Q: FAQ: Guidelines for sync word choices
Guidelines for "optimum" sync word choices.
There are better and worse choices of sync word. E.g. 0xFFFF or 0x0000 are
not good sync words, neither are 0xAAAA nor 0x5555 because theyare identical
or similar to the preamble. The guideline is that the sync word should
contain an alternating sequence of 0's and 1's which is distinctly different
from the preamble and that no sequence of 0's or 1's hould be too long. A
sequence of 4(5)bits or more may be considered too long. Personally I would
try to limit the sequence to 3 bits unless there s a pressing need for more.
The number of 0’s and 1’s should also be close to equal.
that if you're using 32bit sync word that it's duplicated twice.
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