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[Discuss-gnuradio] The use of scrambler/ descrambler blocks

From: mehtap özkan
Subject: [Discuss-gnuradio] The use of scrambler/ descrambler blocks
Date: Mon, 28 Aug 2017 22:54:04 +0300

Some years ago I implemented a scrambler block in FPGA for a transmitter. It produced an output every clock cycle. 
Now I try the GNU Radio scrambler/descrambler blocks. They work great if the data flows continously like from a Vector source or File.
However if I have a discontinous source like a text message or a TCP/IP Source, the scrambler got stuck and has no output. In others words I need something analogous to a CLOCK for discontinous sources.
How to achieve that? Maybe XORing the discontinous source with a source of 0's produced at "sample rate"?
 Thanks for your time.

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