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tb: descramble: Expand offset search 

If we get very lucky, the descrambler can lock after only 28 bits
(the size of the idle counter). Take this scenario into account when
deciding on the offset.

Fixes: 12a4678 ("Add (de)scrambling support")
Signed-off-by: Sean Anderson <seanga2@gmail.com>
This commit is contained in:
Sean Anderson 2022-08-28 12:41:43 -04:00
parent fe908de1f1
commit 27d4c6457e
1 changed files with 1 additions and 1 deletions
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2
tb/descramble.py
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@ -80,7 +80,7 @@ async def test_descramble(descrambler, valids):
best_corr = -1 best_corr = -1
best_off = None best_off = None
for off in range(30, 42): for off in range(28, 42):
corr = sum(i == o for i, o in zip(ins[off:], outs)) corr = sum(i == o for i, o in zip(ins[off:], outs))
if corr > best_corr: if corr > best_corr:
best_corr = corr best_corr = corr