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Diffstat (limited to 'src/electronics/components/ec555.cpp')
| -rw-r--r-- | src/electronics/components/ec555.cpp | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/electronics/components/ec555.cpp b/src/electronics/components/ec555.cpp new file mode 100644 index 0000000..eccf2bd --- /dev/null +++ b/src/electronics/components/ec555.cpp @@ -0,0 +1,172 @@ +/*************************************************************************** + * Copyright (C) 2003 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. * + ***************************************************************************/ + +#include "ec555.h" + +#include "ecnode.h" +#include "libraryitem.h" +#include "pin.h" +#include "resistance.h" + +#include <kiconloader.h> +#include <klocale.h> +#include <qpainter.h> + +Item* EC555::construct( ItemDocument *itemDocument, bool newItem, const char *id ) +{ + return new EC555( (ICNDocument*)itemDocument, newItem, id ); +} + +LibraryItem* EC555::libraryItem() +{ + return new LibraryItem( + QString::QString("ec/555"), + i18n("555"), + i18n("Integrated Circuits"), + "ic1.png", + LibraryItem::lit_component, + EC555::construct + ); +} + +EC555::EC555( ICNDocument *icnDocument, bool newItem, const char *id ) + : Component( icnDocument, newItem, (id) ? id : "555" ) +{ + m_name = i18n("555"); + m_desc = i18n("Common timer IC"); +// m_pins = QStringList::split( ',', "Gnd,Trg,Out,Res,CV,Th,Dis,Vcc" ); +// m_pins = QStringList::split( ',', "Dis,Th,Trg,Gnd,CV,Out,Res,Vcc" ); + + old_com1 = false; + old_com2 = false; + old_q = false; + + setSize( -32, -32, 64, 64 ); + + + // Pins down left + + // Pin 7 + discharge = createPin( -40, -16, 0, "Dis" )->pin(); + addDisplayText( "dis", QRect( -32, -24, 24, 16 ), "Dis" ); + + // Pin 6 + threshold = createPin( -40, 0, 0, "Th" )->pin(); + addDisplayText( "th", QRect( -32, -8, 24, 16 ), "Th" ); + + // Pin 2 + trigger = createPin( -40, 16, 0, "Trg" )->pin(); + addDisplayText( "trg", QRect( -32, 8, 24, 16 ), "Trg" ); + + + + // Top two + + // Pin 8 + vcc = createPin( -16, -40, 90, "Vcc" )->pin(); + addDisplayText( "vcc", QRect( -24, -32, 16, 8 ), "+" ); + + // Pin 4 + reset = createPin( 16, -40, 90, "Res" )->pin(); + addDisplayText( "res", QRect( 8, -28, 16, 16 ), "Res" ); + + + + // Bottom two + + // Pin 1 + ground = createPin( -16, 40, 270, "Gnd" )->pin(); + addDisplayText( "gnd", QRect( -24, 20, 16, 8 ), "-" ); + + // Pin 5 + control = createPin( 16, 40, 270, "CV" )->pin(); + addDisplayText( "cv", QRect( 8, 12, 16, 16 ), "CV" ); + + + + // Output on right + + // Pin 3 + output = createPin( 40, 0, 180, "Out" )->pin(); + addDisplayText( "out", QRect( 8, -8, 16, 16 ), "Out" ); + + + + m_r1 = createResistance( vcc, control, 5e3 ); + m_r23 = createResistance( control, ground, 1e4 ); + m_po_sink = createResistance( output, ground, 0. ); + m_po_source = createResistance( output, vcc, 0. ); + m_po_source->setConductance(0.); + m_r_discharge = createResistance( discharge, ground, 0. ); +} + + +EC555::~EC555() +{ +} + +void EC555::stepNonLogic() +{ + double v_threshold = threshold->voltage(); + double v_control = control->voltage(); + double v_ground = ground->voltage(); + double v_trigger = trigger->voltage(); + double v_reset = reset->voltage(); + double v_vcc = vcc->voltage(); + + double v_r = (v_control+v_ground)/2; + + bool com1 = ( v_threshold == v_control ) ? old_com1 : ( v_threshold < v_control ); + bool com2 = ( v_r == v_trigger ) ? old_com2 : ( v_r > v_trigger ); + bool reset = ( v_reset >= (v_control-v_ground)/2 + v_ground ); + old_com1 = com1; + old_com2 = com2; + + bool r = ( !reset || !com1 ); + bool s = com2; + + bool q = old_q; + if ( v_vcc - v_ground >= 2.5 ) + { + if ( s && !r ) + { + q = true; + } + else if ( r && !s ) + { + q = false; + } + } + else + { + q = false; + } + old_q = q; + + + m_r_discharge->setConductance(0.); + + if (q) + { + m_po_source->setResistance(10.); + m_po_sink->setConductance(0.); + } + else + { + m_po_source->setConductance(0.); + m_po_sink->setResistance(10.); + if ( v_ground+0.7 <= v_vcc ) + { + m_r_discharge->setResistance(10.); + } + } +} + + |