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kicad/eeschema/sim/spice_circuit_model.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2016-2022 CERN
* Copyright (C) 1992-2023 KiCad Developers, see AUTHORS.TXT for contributors.
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* 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 3
* of the License, 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, you may find one here:
* https://www.gnu.org/licenses/gpl-3.0.html
* or you may search the http://www.gnu.org website for the version 3 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "spice_circuit_model.h"
#include <string_utils.h>
#include <wx/regex.h>
#include <wx/tokenzr.h>
#include <locale_io.h>
SIM_TRACE_TYPE SPICE_CIRCUIT_MODEL::VectorToSignal( const std::string& aVector,
wxString& aSignal ) const
{
static wxString BRANCH( wxS( "#branch" ) );
static wxString POWER( wxS( ":power" ) );
// See ngspice manual chapt. 31.1 "Accessing internal device parameters"
static wxRegEx internalDevParameter( wxS( "^@(\\w*[\\.\\w+]*)\\[(\\w*)\\]$" ), wxRE_ADVANCED );
wxString vector( aVector );
if( !internalDevParameter.Matches( vector ) )
{
if( vector.EndsWith( BRANCH ) )
{
aSignal = wxT( "I(" ) + vector.Left( vector.Length() - BRANCH.Length() ) + wxT( ")" );
return SPT_CURRENT;
}
else if( vector.EndsWith( POWER ) )
{
aSignal = wxT( "P(" ) + vector.Left( vector.Length() - POWER.Length() ) + wxT( ")" );
return SPT_POWER;
}
else
{
aSignal = wxT( "V(" ) + vector + wxT( ")" );
return SPT_VOLTAGE;
}
}
else
{
wxString paramType = internalDevParameter.GetMatch( vector, 2 );
if( paramType.Lower()[0] == 'i' )
{
// this is a branch current
paramType[0] = 'I';
aSignal = paramType + wxT( "(" );
aSignal += internalDevParameter.GetMatch( vector, 1 ).Upper() + wxT( ")" );
return SPT_CURRENT;
}
else
{
return SPT_UNKNOWN;
}
}
}
wxString SPICE_CIRCUIT_MODEL::GetSchTextSimCommand()
{
wxString simCmd;
ReadDirectives( 0 );
for( const wxString& directive : GetDirectives() )
{
if( IsSimCommand( directive ) )
simCmd += wxString::Format( wxT( "%s\r\n" ), directive );
}
return simCmd.Trim();
}
SIM_TYPE SPICE_CIRCUIT_MODEL::CommandToSimType( const wxString& aCmd )
{
wxString cmd = aCmd.Lower().Trim();
if( cmd == wxT( ".op" ) ) return ST_OP;
else if( cmd.StartsWith( wxT( ".ac" ) ) ) return ST_AC;
else if( cmd.StartsWith( wxT( ".dc" ) ) ) return ST_DC;
else if( cmd.StartsWith( wxT( ".tran" ) ) ) return ST_TRAN;
else if( cmd.StartsWith( wxT( ".disto" ) ) ) return ST_DISTO;
else if( cmd.StartsWith( wxT( ".noise" ) ) ) return ST_NOISE;
else if( cmd.StartsWith( wxT( ".pz" ) ) ) return ST_PZ;
else if( cmd.StartsWith( wxT( ".sens" ) ) ) return ST_SENS;
else if( cmd.StartsWith( wxT( ".sp" ) ) ) return ST_SP;
else if( cmd.StartsWith( wxT( ".tf" ) ) ) return ST_TF;
else if( cmd.StartsWith( wxT( "fft" ) ) ) return ST_FFT;
else return ST_UNKNOWN;
}
bool SPICE_CIRCUIT_MODEL::ParseDCCommand( const wxString& aCmd, SPICE_DC_PARAMS* aSource1,
SPICE_DC_PARAMS* aSource2 )
{
if( !aCmd.Lower().StartsWith( ".dc" ) )
return false;
wxString cmd = aCmd.Mid( 3 );
wxStringTokenizer tokens( cmd, wxS( " \t" ), wxTOKEN_STRTOK );
aSource1->m_source = tokens.GetNextToken();
aSource1->m_vstart = SPICE_VALUE( tokens.GetNextToken() );
aSource1->m_vend = SPICE_VALUE( tokens.GetNextToken() );
aSource1->m_vincrement = SPICE_VALUE( tokens.GetNextToken() );
aSource2->m_source = tokens.GetNextToken();
aSource2->m_vstart = SPICE_VALUE( tokens.GetNextToken() );
aSource2->m_vend = SPICE_VALUE( tokens.GetNextToken() );
aSource2->m_vincrement = SPICE_VALUE( tokens.GetNextToken() );
return true;
}
bool SPICE_CIRCUIT_MODEL::ParsePZCommand( const wxString& aCmd, wxString* transferFunction,
wxString* input, wxString* inputRef, wxString* output,
wxString* outputRef, SPICE_PZ_ANALYSES* analyses )
{
if( !aCmd.Lower().StartsWith( wxS( ".pz" ) ) )
return false;
*transferFunction = "vol";
analyses->m_Poles = true;
analyses->m_Zeros = true;
wxStringTokenizer tokens( aCmd.Mid( 3 ), wxS( " \t" ), wxTOKEN_STRTOK );
if( tokens.HasMoreTokens() )
*input = tokens.GetNextToken();
if( tokens.HasMoreTokens() )
*inputRef = tokens.GetNextToken();
if( tokens.HasMoreTokens() )
*output = tokens.GetNextToken();
if( tokens.HasMoreTokens() )
*outputRef = tokens.GetNextToken();
if( tokens.HasMoreTokens() )
*transferFunction = tokens.GetNextToken();
if( tokens.HasMoreTokens() )
{
wxString token = tokens.GetNextToken().Lower();
if( token == wxS( "pol" ) )
analyses->m_Zeros = false;
else if( token == wxS( "zer" ) )
analyses->m_Poles = false;
}
return true;
}
bool SPICE_CIRCUIT_MODEL::ParseNoiseCommand( const wxString& aCmd, wxString* aOutput,
wxString* aRef, wxString* aSource, wxString* aScale,
SPICE_VALUE* aPts, SPICE_VALUE* aFStart,
SPICE_VALUE* aFStop, bool* aSaveAll )
{
if( !aCmd.Lower().StartsWith( wxS( ".noise" ) ) )
return false;
wxString cmd = aCmd.Mid( 6 );
cmd.Trim( false );
if( !cmd.Lower().StartsWith( wxS( "v(" ) ) )
return false;
cmd = cmd.Mid( 2 );
wxString function = cmd.Before( ')' );
wxString params = cmd.After( ')' );
wxStringTokenizer func_tokens( function, wxS( " ,\t" ), wxTOKEN_STRTOK );
*aOutput = func_tokens.GetNextToken();
*aRef = func_tokens.GetNextToken();
wxStringTokenizer tokens( params, wxS( " \t" ), wxTOKEN_STRTOK );
wxString token = tokens.GetNextToken();
if( !token.IsEmpty() )
{
*aSource = token;
token = tokens.GetNextToken();
}
if( token.Lower() == "dec" || token.Lower() == "oct" || token.Lower() == "lin" )
{
*aScale = token;
token = tokens.GetNextToken();
}
if( !token.IsEmpty() )
{
*aPts = token;
token = tokens.GetNextToken();
}
if( !token.IsEmpty() )
{
*aFStart = SPICE_VALUE( token );
token = tokens.GetNextToken();
}
if( !token.IsEmpty() )
{
*aFStop = SPICE_VALUE( token );
token = tokens.GetNextToken();
}
if( !token.IsEmpty() )
*aSaveAll = true;
return true;
}
void SPICE_CIRCUIT_MODEL::WriteDirectives( const wxString& aSimCommand, unsigned aSimOptions,
OUTPUTFORMATTER& aFormatter ) const
{
if( aSimCommand.IsEmpty() )
aSimOptions |= OPTION_SIM_COMMAND;
NETLIST_EXPORTER_SPICE::WriteDirectives( aSimCommand, aSimOptions, aFormatter );
if( !aSimCommand.IsEmpty() )
aFormatter.Print( 0, "%s\n", TO_UTF8( aSimCommand ) );
}
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