fbool_nco.h

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/*
 * SPUC - Signal processing using C++ - A DSP library
 * 
 * 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; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef FNCO
#define FNCO
#include <mync.h>
#include <uint.h>
namespace SPUC {
template <int M, int L> class fbool_nco
{
 public:
  bool phase;
//  char v[20];

  protected:
  uint<M> acc;
  uint<M> fcw;
  uint<M> new_fcw;

public:
        fbool_nco() { acc = fcw = new_fcw = 0};
        inline void set_frequency(uint<M> freq) { fcw = freq; }
        inline void reset_frequency(uint<M> freq) { new_fcw = fcw = freq; }
        inline bool get_phase(void) { return(phase);}
        inline void load(uint<L> loop_filter_out) {new_fcw = fcw + loop_filter_out;}
        bool clock() {
                acc = acc + new_fcw;
                phase = acc.overflow;
                return(phase);
        }
        bool clock(uint<L> loop_filter_out) {
        new_fcw = fcw + loop_filter_out;
        return(clock());
        }

};
} // namespace SPUC 
#endif

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