Re: [Kicad-developers] eeschema ngspice simulation improvment
I work on. First result in attachment.
On 08/02/2018 10:07, Maciej Sumiński wrote:
Hi Ludovic,
If I recall correctly, when you run an analysis different than
transient, ngspice will not return any data when you ask for currents.
There is also another related line:
void NETLIST_EXPORTER_PSPICE_SIM::writeDirectives( OUTPUTFORMATTER*
aFormatter, unsigned aCtl ) const
{
// Add a directive to obtain currents
//aFormatter->Print( 0, ".options savecurrents\n" );// does
not work :(
The directive is described in ngspice manual [1, 15.7.1]. Perhaps it is
fixed in ngspice-27, I have no idea. Try commenting out the condition
that prevents listing current signals for analysis other than transient
and see if you succeed.
Regards,
Orson
1. http://ngspice.sourceforge.net/docs/ngspice-manual.pdf
On 02/08/2018 09:45 AM, ludovic léau-mercier wrote:
Hi all,
i try to create a patch to adding several improvment of eeshema simulation.
My first goal is to draw BJT caracteristics (like
https://www.st-andrews.ac.uk/~www_pa/Scots_Guide/info/comp/active/BiPolar/IcVce.gif)
with a simplest circuit in attachment.
I had beginning to work on this improvment but in the file :
/kicad/eeschema/dialogs/dialog_signal_list.cpp
in method :
bool DIALOG_SIGNAL_LIST::TransferDataToWindow()
there is a strnage comment :
// For some reason, it is not possible to plot currents in any but
transient analysis
If someone can give me some informations ?
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--
Ludovic Léau-Mercier
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[Kicad-developers] eeschema ngspice simulation improvment
Hi all, i try to create a patch to adding several improvment of eeshema simulation. My first goal is to draw BJT caracteristics (like https://www.st-andrews.ac.uk/~www_pa/Scots_Guide/info/comp/active/BiPolar/IcVce.gif) with a simplest circuit in attachment. I had beginning to work on this improvment but in the file : /kicad/eeschema/dialogs/dialog_signal_list.cpp in method : bool DIALOG_SIGNAL_LIST::TransferDataToWindow() there is a strnage comment : // For some reason, it is not possible to plot currents in any but transient analysis If someone can give me some informations ? -- Ludovic Léau-Mercier ___ Mailing list: https://launchpad.net/~kicad-developers Post to : kicad-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
[Kicad-developers] process to push improvement
Hi, kicad team,
i'm newbie here.
I use kicad for simulation with ngspice.
Currently when you add directive .title in a textbox and generate
netlist you have this :
.title KiCad schematic
QQ1 /collector /base 0 Q_NPN_CBE
VV1 Net-_V1-Pad1_ 0 dc 0
VVSENSE1 Net-_V1-Pad1_ /collector dc 0
II1 0 /base dc 20u
.title BJT caracteristics
.model Q_NPN_CBE npn
.dc vv1 0 50 2 ii1 15u 75u 15u
.end
I have create a little patch to replace the default title if exist and
then you can have :
.title BJT caracteristics
QQ1 /collector /base 0 Q_NPN_CBE
VV1 Net-_V1-Pad1_ 0 dc 0
VVSENSE1 Net-_V1-Pad1_ /collector dc 0
II1 0 /base dc 20u
.model Q_NPN_CBE npn
.dc vv1 0 50 2 ii1 15u 75u 15u
.end
What is the process to suggest this improvement ?
--
Ludovic Léau-Mercier
diff --git a/eeschema/netlist_exporters/netlist_exporter_pspice.cpp b/eeschema/netlist_exporters/netlist_exporter_pspice.cpp
index 18a5c0c5d..1f30b5def 100644
--- a/eeschema/netlist_exporters/netlist_exporter_pspice.cpp
+++ b/eeschema/netlist_exporters/netlist_exporter_pspice.cpp
@@ -63,10 +63,13 @@ bool NETLIST_EXPORTER_PSPICE::Format( OUTPUTFORMATTER* aFormatter, unsigned aCtl
// Netlist options
const bool useNetcodeAsNetName = false;//aCtl & NET_USE_NETCODES_AS_NETNAMES;
+// default title
+m_title = "KiCad schematic";
+
if( !ProcessNetlist( aCtl ) )
return false;
-aFormatter->Print( 0, ".title KiCad schematic\n" );
+aFormatter->Print( 0, ".title %s\n", (const char*) m_title.c_str() );
// Write .include directives
for( const auto& lib : m_libraries )
@@ -382,6 +385,10 @@ void NETLIST_EXPORTER_PSPICE::UpdateDirectives( unsigned aCtl )
if( !lib.IsEmpty() )
m_libraries.insert( lib );
}
+if( directive.StartsWith( ".title ") )
+{
+ m_title = directive.AfterFirst( ' ' );
+}
else
{
m_directives.push_back( directive );
diff --git a/eeschema/netlist_exporters/netlist_exporter_pspice.h b/eeschema/netlist_exporters/netlist_exporter_pspice.h
index 1fc42b032..1a72054bd 100644
--- a/eeschema/netlist_exporters/netlist_exporter_pspice.h
+++ b/eeschema/netlist_exporters/netlist_exporter_pspice.h
@@ -216,6 +216,9 @@ protected:
virtual void writeDirectives( OUTPUTFORMATTER* aFormatter, unsigned aCtl ) const;
private:
+///> Spice simulation title found in the processed schematic sheet
+wxString m_title;
+
///> Spice directives found in the processed schematic sheet
std::vector m_directives;
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