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Diffstat (limited to 'src/electronics/components/binarycounter.h')
-rw-r--r-- | src/electronics/components/binarycounter.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/electronics/components/binarycounter.h b/src/electronics/components/binarycounter.h new file mode 100644 index 0000000..b15762d --- /dev/null +++ b/src/electronics/components/binarycounter.h @@ -0,0 +1,63 @@ +/*************************************************************************** + * Copyright (C) 2003-2005 by David Saxton * + * [email protected] * + * * + * 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 of the License, or * + * (at your option) any later version. * + ***************************************************************************/ + +#ifndef EC4BITCOUNTER_H +#define EC4BITCOUNTER_H + +#include "component.h" +#include "logic.h" + +/** +Simple logic counter. 4 Inputs, 4 Outputs. + +Outputs (A-D) represent the stored value (0-15). +The inputs are: +@li en - Enable incrementing of value +@li in - Input (trigger high) +@li r - Reset stored value to 0 +@li ud - Up/Down increment + +@short 4 Bit Binary Counter +@author David Saxton +*/ +class BinaryCounter : public CallbackClass, public Component +{ +public: + BinaryCounter( ICNDocument *icnDocument, bool newItem, const char *id = 0L ); + ~BinaryCounter(); + + virtual bool canFlip() const { return true; } + static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id ); + static LibraryItem *libraryItem(); + +protected: + void inStateChanged( bool state ); // Input + void rStateChanged( bool state ); // Reset + void enStateChanged( bool state ); // Enable + void udStateChanged( bool state ); // Up/Down + void outputValue(); + void dataChanged(); + void initPins( unsigned numBits ); + + LogicIn *enLogic, *inLogic, *rLogic, *udLogic; + LogicOut * m_pLogicOut[26]; + + unsigned m_numBits; + bool b_triggerHigh; + bool b_en; // Enable + bool b_ud; // Up/Down + bool b_oldIn; + bool b_reset; + long m_value; + long m_maxValue; + bool m_bDoneLogicIn; +}; + +#endif |