[Dspforum] fsk encode

Joseph Haber josephhaber at gmail.com
Wed Nov 18 19:46:19 MST 2009


All,

When I encode the 8-bit characters, I always put a 0,0,1 (latch, latch,
release) in front. The headerlen and trailerlen is in addition to this. So,
if the bits to be transmitted are 01011111, and the headerlen = 2, and the
trailer len = 2, then I encode the following bit stream. In the stream, H
denotes header, L denotes latch, R denotes release (i.e, 0 and 1 for the
purpose of detecting the beginning of the byte), the count is counting the
bits in the actual char, and T is the trailer.

Joseph

H H  L L R  7 6 5 4 3 2 1 0  T T
0 0  0 0 1  0 1 0 1 1 1 1 1  0 0
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