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kicad/eeschema/erc.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 1992-2011 KiCad Developers, see AUTHORS.txt for contributors.
*
* 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.
*
* 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:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* @file erc.cpp
* @brief Electrical Rules Check implementation.
*/
#include <fctsys.h>
#include <class_drawpanel.h>
#include <kicad_string.h>
#include <wxEeschemaStruct.h>
#include <netlist.h>
#include <class_netlist_object.h>
#include <lib_pin.h>
#include <protos.h>
#include <erc.h>
#include <sch_marker.h>
#include <sch_component.h>
#include <sch_sheet.h>
/* ERC tests :
* 1 - conflicts between connected pins ( example: 2 connected outputs )
* 2 - minimal connections requirements ( 1 input *must* be connected to an
* output, or a passive pin )
*/
/*
* Electrical type of pins:
* PIN_INPUT = usual pin input: must be connected
* PIN_OUTPUT = usual output
* PIN_BIDI = input or output (like port for a microprocessor)
* PIN_TRISTATE = tris state bus pin
* PIN_PASSIVE = pin for passive components: must be connected, and can be
* connected to any pin
* PIN_UNSPECIFIED = unknown electrical properties: creates always a warning
* when connected
* PIN_POWER_IN = power input (GND, VCC for ICs). Must be connected to a power
* output.
* PIN_POWER_OUT = output of a regulator: intended to be connected to power
* input pins
* PIN_OPENCOLLECTOR = pin type open collector
* PIN_OPENEMITTER = pin type open emitter
* PIN_NC = not connected (must be left open)
*
* Minimal requirements:
* All pins *must* be connected (except PIN_NC).
* When a pin is not connected in schematic, the user must place a "non
* connected" symbol to this pin.
* This ensures a forgotten connection will be detected.
*/
/* Messages for conflicts :
* PIN_INPUT, PIN_OUTPUT, PIN_BIDI, PIN_TRISTATE, PIN_PASSIVE,
* PIN_UNSPECIFIED, PIN_POWER_IN, PIN_POWER_OUT, PIN_OPENCOLLECTOR,
* PIN_OPENEMITTER, PIN_NC
* These messages are used to show the ERC matrix in ERC dialog
*/
// Messages for matrix rows:
const wxChar* CommentERC_H[] =
{
_( "Input Pin.........." ),
_( "Output Pin........." ),
_( "Bidirectional Pin.." ),
_( "Tri-State Pin......" ),
_( "Passive Pin........" ),
_( "Unspecified Pin...." ),
_( "Power Input Pin...." ),
_( "Power Output Pin..." ),
_( "Open Collector....." ),
_( "Open Emitter......." ),
_( "No Connection......" ),
NULL
};
// Messages for matrix columns
const wxChar* CommentERC_V[] =
{
_( "Input Pin" ),
_( "Output Pin" ),
_( "Bidirectional Pin" ),
_( "Tri-State Pin" ),
_( "Passive Pin" ),
_( "Unspecified Pin" ),
_( "Power Input Pin" ),
_( "Power Output Pin" ),
_( "Open Collector" ),
_( "Open Emitter" ),
_( "No Connection" ),
NULL
};
/* Look up table which gives the diag for a pair of connected pins
* Can be modified by ERC options.
* at start up: must be loaded by DefaultDiagErc
*/
int DiagErc[PIN_NMAX][PIN_NMAX];
bool DiagErcTableInit; // go to true after DiagErc init
/**
* Default Look up table which gives the ERC error level for a pair of connected pins
* Same as DiagErc, but cannot be modified.
* Used to init or reset DiagErc
* note also, to avoid inconsistancy:
* DefaultDiagErc[i][j] = DefaultDiagErc[j][i]
*/
int DefaultDiagErc[PIN_NMAX][PIN_NMAX] =
{
/* I, O, Bi, 3S, Pas, UnS, PwrI, PwrO, OC, OE, NC */
/* I */ { OK, OK, OK, OK, OK, WAR, OK, OK, OK, OK, ERR },
/* O */ { OK, ERR, OK, WAR, OK, WAR, OK, ERR, ERR, ERR, ERR },
/* Bi*/ { OK, OK, OK, OK, OK, WAR, OK, WAR, OK, WAR, ERR },
/* 3S*/ { OK, WAR, OK, OK, OK, WAR, WAR, ERR, WAR, WAR, ERR },
/*Pas*/ { OK, OK, OK, OK, OK, WAR, OK, OK, OK, OK, ERR },
/*UnS */ { WAR, WAR, WAR, WAR, WAR, WAR, WAR, WAR, WAR, WAR, ERR },
/*PwrI*/ { OK, OK, OK, WAR, OK, WAR, OK, OK, OK, OK, ERR },
/*PwrO*/ { OK, ERR, WAR, ERR, OK, WAR, OK, ERR, ERR, ERR, ERR },
/* OC */ { OK, ERR, OK, WAR, OK, WAR, OK, ERR, OK, OK, ERR },
/* OE */ { OK, ERR, WAR, WAR, OK, WAR, OK, ERR, OK, OK, ERR },
/* NC */ { ERR, ERR, ERR, ERR, ERR, ERR, ERR, ERR, ERR, ERR, ERR }
};
/**
* Look up table which gives the minimal drive for a pair of connected pins on
* a net.
* <p>
* The initial state of a net is NOC (Net with No Connection). It can be updated to
* NPI (Pin Isolated), NET_NC (Net with a no connect symbol), NOD (Not Driven) or DRV
* (DRIven). It can be updated to NET_NC with no error only if there is only one pin
* in net. Nets are OK when their final state is NET_NC or DRV. Nets with the state
* NOD have no valid source signal.
*/
static int MinimalReq[PIN_NMAX][PIN_NMAX] =
{
/* In Out, Bi, 3S, Pas, UnS, PwrI,PwrO,OC, OE, NC */
/* In*/ { NOD, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/*Out*/ { DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, NPI },
/* Bi*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/* 3S*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/*Pas*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/*UnS*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/*PwrI*/ { NOD, DRV, NOD, NOD, NOD, NOD, NOD, DRV, NOD, NOD, NPI },
/*PwrO*/ { DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, NPI },
/* OC*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/* OE*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/* NC*/ { NPI, NPI, NPI, NPI, NPI, NPI, NPI, NPI, NPI, NPI, NPI }
};
int TestDuplicateSheetNames( bool aCreateMarker )
{
SCH_SCREEN* screen;
SCH_ITEM* item;
SCH_ITEM* test_item;
int err_count = 0;
SCH_SCREENS screenList; // Created the list of screen
for( screen = screenList.GetFirst(); screen != NULL; screen = screenList.GetNext() )
{
for( item = screen->GetDrawItems(); item != NULL; item = item->Next() )
{
// search for a sheet;
if( item->Type() != SCH_SHEET_T )
continue;
for( test_item = item->Next(); test_item != NULL; test_item = test_item->Next() )
{
if( test_item->Type() != SCH_SHEET_T )
continue;
// We have found a second sheet: compare names
if( ( (SCH_SHEET*) item )->GetName().CmpNoCase(
( ( SCH_SHEET* ) test_item )->GetName() ) == 0 )
{
if( aCreateMarker )
{
/* Create a new marker type ERC error*/
SCH_MARKER* marker = new SCH_MARKER();
marker->SetTimeStamp( GetNewTimeStamp() );
marker->SetData( ERCE_DUPLICATE_SHEET_NAME,
( (SCH_SHEET*) test_item )->GetPosition(),
_( "Duplicate sheet name" ),
( (SCH_SHEET*) test_item )->GetPosition() );
marker->SetMarkerType( MARK_ERC );
marker->SetErrorLevel( ERR );
screen->Append( marker );
}
err_count++;
}
}
}
}
return err_count;
}
void Diagnose( NETLIST_OBJECT* aNetItemRef, NETLIST_OBJECT* aNetItemTst,
int aMinConn, int aDiag )
{
SCH_MARKER* marker = NULL;
SCH_SCREEN* screen;
int ii, jj;
if( aDiag == OK )
return;
/* Create new marker for ERC error. */
marker = new SCH_MARKER();
marker->SetTimeStamp( GetNewTimeStamp() );
marker->SetMarkerType( MARK_ERC );
marker->SetErrorLevel( WAR );
screen = aNetItemRef->m_SheetPath.LastScreen();
screen->Append( marker );
wxString msg;
if( aMinConn < 0 )
{
if( (aNetItemRef->m_Type == NET_HIERLABEL)
|| (aNetItemRef->m_Type == NET_HIERBUSLABELMEMBER) )
{
msg.Printf( _( "Hierarchical label %s is not connected to a sheet label." ),
GetChars( aNetItemRef->m_Label ) );
}
else
{
msg.Printf( _( "Sheet label %s is not connected to a hierarchical label." ),
GetChars( aNetItemRef->m_Label ) );
}
marker->SetData( ERCE_HIERACHICAL_LABEL,
aNetItemRef->m_Start,
msg,
aNetItemRef->m_Start );
return;
}
ii = aNetItemRef->m_ElectricalType;
wxString string_pinnum, cmp_ref;
char ascii_buf[5];
ascii_buf[4] = 0;
memcpy( ascii_buf, &aNetItemRef->m_PinNum, 4 );
string_pinnum = FROM_UTF8( ascii_buf );
cmp_ref = wxT( "?" );
if( aNetItemRef->m_Type == NET_PIN && aNetItemRef->m_Link )
cmp_ref = aNetItemRef->GetComponentParent()->GetRef( &aNetItemRef->m_SheetPath );
if( aNetItemTst == NULL )
{
if( aMinConn == NOC ) /* Only 1 element in the net. */
{
msg.Printf( _( "Pin %s (%s) of component %s is unconnected." ),
GetChars( string_pinnum ), MsgPinElectricType[ii], GetChars( cmp_ref ) );
marker->SetData( ERCE_PIN_NOT_CONNECTED,
aNetItemRef->m_Start,
msg,
aNetItemRef->m_Start );
return;
}
if( aMinConn == NOD ) /* Nothing driving the net. */
{
if( aNetItemRef->m_Type == NET_PIN && aNetItemRef->m_Link )
cmp_ref = aNetItemRef->GetComponentParent()->GetRef(
&aNetItemRef->m_SheetPath );
msg.Printf( _( "Pin %s (%s) of component %s is not driven (Net %d)." ),
GetChars( string_pinnum ), MsgPinElectricType[ii], GetChars( cmp_ref ),
aNetItemRef->GetNet() );
marker->SetData( ERCE_PIN_NOT_DRIVEN,
aNetItemRef->m_Start,
msg,
aNetItemRef->m_Start );
return;
}
if( aDiag == UNC )
{
msg.Printf( _( "More than 1 pin connected to an UnConnect symbol." ) );
marker->SetData( ERCE_NOCONNECT_CONNECTED,
aNetItemRef->m_Start,
msg,
aNetItemRef->m_Start );
return;
}
}
if( aNetItemTst ) /* Error between 2 pins */
{
jj = aNetItemTst->m_ElectricalType;
int errortype = ERCE_PIN_TO_PIN_WARNING;
if( aDiag == ERR )
{
marker->SetErrorLevel( ERR );
errortype = ERCE_PIN_TO_PIN_ERROR;
}
wxString alt_string_pinnum, alt_cmp;
memcpy( ascii_buf, &aNetItemTst->m_PinNum, 4 );
alt_string_pinnum = FROM_UTF8( ascii_buf );
alt_cmp = wxT( "?" );
if( aNetItemTst->m_Type == NET_PIN && aNetItemTst->m_Link )
alt_cmp = aNetItemTst->GetComponentParent()->GetRef( &aNetItemTst->m_SheetPath );
msg.Printf( _( "Pin %s (%s) of component %s is connected to " ),
GetChars( string_pinnum ), MsgPinElectricType[ii], GetChars( cmp_ref ) );
marker->SetData( errortype, aNetItemRef->m_Start, msg, aNetItemRef->m_Start );
msg.Printf( _( "pin %s (%s) of component %s (net %d)." ),
GetChars( alt_string_pinnum ), MsgPinElectricType[jj], GetChars( alt_cmp ),
aNetItemRef->GetNet() );
marker->SetAuxiliaryData( msg, aNetItemTst->m_Start );
}
}
void TestOthersItems( NETLIST_OBJECT_LIST* aList,
unsigned aNetItemRef, unsigned aNetStart,
int* aNetNbItems, int* aMinConnexion )
{
unsigned netItemTst = aNetStart;
int jj;
int erc = OK;
/* Analysis of the table of connections. */
int ref_elect_type = aList->GetItem( aNetItemRef )->m_ElectricalType;
int local_minconn = NOC;
if( ref_elect_type == PIN_NC )
local_minconn = NPI;
/* Test pins connected to NetItemRef */
for( ; ; netItemTst++ )
{
if( aNetItemRef == netItemTst )
continue;
// We examine only a given net. We stop the search if the net changes
if( ( netItemTst >= aList->size() ) // End of list
|| ( aList->GetItemNet( aNetItemRef ) !=
aList->GetItemNet( netItemTst ) ) ) // End of net
{
/* End net code found: minimum connection test. */
if( ( *aMinConnexion < NET_NC ) && ( local_minconn < NET_NC ) )
{
/* Not connected or not driven pin. */
bool seterr = true;
if( local_minconn == NOC &&
aList->GetItemType( aNetItemRef ) == NET_PIN )
{
/* This pin is not connected: for multiple part per
* package, and duplicated pin,
* search for an other instance of this pin
* this will be flagged only if all instances of this pin
* are not connected
* TODO test also if instances connected are connected to
* the same net
*/
for( unsigned duplicate = 0; duplicate < aList->size(); duplicate++ )
{
if( aList->GetItemType( duplicate ) != NET_PIN )
continue;
if( duplicate == aNetItemRef )
continue;
if( aList->GetItem( aNetItemRef )->m_PinNum !=
aList->GetItem( duplicate )->m_PinNum )
continue;
if( ( (SCH_COMPONENT*) aList->GetItem( aNetItemRef )->
m_Link )->GetRef( &aList->GetItem( aNetItemRef )-> m_SheetPath ) !=
( (SCH_COMPONENT*) aList->GetItem( duplicate )->m_Link )
->GetRef( &aList->GetItem( duplicate )->m_SheetPath ) )
continue;
// Same component and same pin. Do dot create error for this pin
// if the other pin is connected (i.e. if duplicate net has an other
// item)
if( (duplicate > 0)
&& ( aList->GetItemNet( duplicate ) ==
aList->GetItemNet( duplicate - 1 ) ) )
seterr = false;
if( (duplicate < aList->size() - 1)
&& ( aList->GetItemNet( duplicate ) ==
aList->GetItemNet( duplicate + 1 ) ) )
seterr = false;
}
}
if( seterr )
Diagnose( aList->GetItem( aNetItemRef ), NULL, local_minconn, WAR );
*aMinConnexion = DRV; // inhibiting other messages of this
// type for the net.
}
return;
}
switch( aList->GetItemType( netItemTst ) )
{
case NET_ITEM_UNSPECIFIED:
case NET_SEGMENT:
case NET_BUS:
case NET_JUNCTION:
case NET_LABEL:
case NET_HIERLABEL:
case NET_BUSLABELMEMBER:
case NET_HIERBUSLABELMEMBER:
case NET_SHEETBUSLABELMEMBER:
case NET_SHEETLABEL:
case NET_GLOBLABEL:
case NET_GLOBBUSLABELMEMBER:
case NET_PINLABEL:
break;
case NET_NOCONNECT:
local_minconn = std::max( NET_NC, local_minconn );
break;
case NET_PIN:
jj = aList->GetItem( netItemTst )->m_ElectricalType;
local_minconn = std::max( MinimalReq[ref_elect_type][jj], local_minconn );
if( netItemTst <= aNetItemRef )
break;
*aNetNbItems += 1;
if( erc == OK )
{
erc = DiagErc[ref_elect_type][jj];
if( erc != OK )
{
if( aList->GetConnectionType( netItemTst ) == UNCONNECTED )
{
Diagnose( aList->GetItem( aNetItemRef ),
aList->GetItem( netItemTst ),
0, erc );
aList->SetConnectionType( netItemTst, NOCONNECT_SYMBOL_PRESENT );
}
}
}
break;
}
}
}
bool WriteDiagnosticERC( const wxString& aFullFileName )
{
SCH_ITEM* item;
SCH_MARKER* marker;
static FILE* file;
SCH_SHEET_PATH* sheet;
wxString msg;
int count = 0;
if( ( file = wxFopen( aFullFileName, wxT( "wt" ) ) ) == NULL )
return false;
msg = _( "ERC report" );
fprintf( file, "%s (%s)\n", TO_UTF8( msg ), TO_UTF8( DateAndTime() ) );
SCH_SHEET_LIST sheetList;
for( sheet = sheetList.GetFirst(); sheet != NULL; sheet = sheetList.GetNext() )
{
msg.Printf( _( "\n***** Sheet %s\n" ), GetChars( sheet->PathHumanReadable() ) );
fprintf( file, "%s", TO_UTF8( msg ) );
for( item = sheet->LastDrawList(); item != NULL; item = item->Next() )
{
if( item->Type() != SCH_MARKER_T )
continue;
marker = (SCH_MARKER*) item;
if( marker->GetMarkerType() != MARK_ERC )
continue;
if( marker->GetMarkerType() == ERR )
count++;
msg = marker->GetReporter().ShowReport();
fprintf( file, "%s", TO_UTF8( msg ) );
}
}
msg.Printf( _( "\n >> Errors ERC: %d\n" ), count );
fprintf( file, "%s", TO_UTF8( msg ) );
fclose( file );
return true;
}
void TestLabel( NETLIST_OBJECT_LIST* aList, unsigned aNetItemRef, unsigned aStartNet )
{
unsigned netItemTst = aStartNet;
int erc = 1;
/* Review the list of labels connected to NetItemRef. */
for( ; ; netItemTst++ )
{
if( netItemTst == aNetItemRef )
continue;
/* Is always in the same net? */
if( ( netItemTst == aList->size() )
|| ( aList->GetItemNet( aNetItemRef ) != aList->GetItemNet( netItemTst ) ) )
{
/* End Netcode found. */
if( erc )
{
/* Glabel or SheetLabel orphaned. */
Diagnose( aList->GetItem( aNetItemRef ), NULL, -1, WAR );
}
return;
}
if( aList->GetItem( aNetItemRef )->IsLabelConnected( aList->GetItem( netItemTst ) ) )
erc = 0;
//same thing, different order.
if( aList->GetItem( netItemTst )->IsLabelConnected( aList->GetItem( aNetItemRef ) ) )
erc = 0;
}
}
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