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Added De Bruijn sequence generator

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Moved POCSAG frequency list to SD card file for FreqMan
This commit is contained in:
furrtek 2017-07-20 16:48:59 +01:00
parent 8364bfb2ce
commit 3005403b5e
11 changed files with 248 additions and 82 deletions
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firmware/application/de_bruijn.hpp Normal file
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/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2017 Furrtek
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include <string>
#ifndef __DE_BRUIJN_H__
#define __DE_BRUIJN_H__
// Starts at n = 3
const uint32_t de_bruijn_polys[14] {
0b0000000000000101,
0b0000000000001001,
0b0000000000011011,
0b0000000000110011,
0b0000000001010011,
0b0000000010001101,
0b0000000100100001,
0b0000001000100001,
0b0000010001100001,
0b0000110101000011,
0b0001001001100101,
0b0010101100000011,
0b0101000000001001,
0b1010000101000101
};
struct de_bruijn {
public:
void init(const uint32_t n);
uint32_t compute(const uint32_t step);
private:
uint32_t length { };
uint32_t poly { };
uint32_t shift_register { };
};
#endif/*__DE_BRUIJN_H__*/