Re: [Discuss-gnuradio] Bug in digital::glfsr_source_b

[Eugene Grayver]

Note: same issue with descrambler_bb and scrambler_bb.  The digital.lfsr block is correct.

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Eugene Grayver, Ph.D.
Aerospace Corp., Sr. Eng. Spec.
Tel: 310.336.1274
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From: Eugene Grayver
Sent: Monday, August 8, 2016 2:47 PM
To: address@hidden
Subject: Bug in digital::glfsr_source_b

 

I found a minor (?) bug in glfsr_source_b and _f, and in glfsr.h.  The input types for mask and seed should be 'unsigned int', not 'int'.  Currently it does not allow 32-bit values, only 31-bit values.  While somebody is fixing that, they should also make 'length' an optional input to have the LFSR restart after fewer than 2^degree outputs.

________________________

Eugene Grayver, Ph.D.
Aerospace Corp., Sr. Eng. Spec.
Tel: 310.336.1274
________________________