Qucs-core  0.0.19
digital.h
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00001 /*
00002  * digital.h - digital base class definitions
00003  *
00004  * Copyright (C) 2005, 2006 Stefan Jahn <stefan@lkcc.org>
00005  *
00006  * This is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2, or (at your option)
00009  * any later version.
00010  *
00011  * This software is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License
00017  * along with this package; see the file COPYING.  If not, write to
00018  * the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
00019  * Boston, MA 02110-1301, USA.
00020  *
00021  * $Id$
00022  *
00023  */
00024 
00025 #ifndef __DIGITAL_H__
00026 #define __DIGITAL_H__
00027 
00028 class digital : public qucs::circuit
00029 {
00030  public:
00031   digital ();
00032   ~digital ();
00033   void initSP (void);
00034   void calcSP (nr_double_t);
00035   void initDC (void);
00036   void calcDC (void);
00037   void initAC (void);
00038   void calcAC (nr_double_t);
00039   void initTR (void);
00040   void calcTR (nr_double_t);
00041   void calcOperatingPoints (void);
00042 
00043  protected:
00044   virtual void calcOutput (void) { }
00045   virtual void calcDerivatives (void) { }
00046   nr_double_t getVin (int);
00047   nr_double_t calcTransfer (int);
00048   nr_double_t calcTransferX (int);
00049   nr_double_t calcDerivative (int);
00050   nr_double_t calcDerivativeX (int);
00051 
00052  protected:
00053   nr_double_t * g;
00054   nr_double_t Vout, Veq, Tdelay;
00055   int i;
00056   bool delay;
00057 
00058  private:
00059   void initDigital (void);
00060   void freeDigital (void);
00061 };
00062 
00063 #endif /* __DIGITAL_H__ */