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magic
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Two improvements: (1) Command extension "ext2spice lvs" sets up 

all the settings normally used for LVS (hierarchy on, cthresh
infinite, subcircuit top auto, etc.).  (2) Extract and extract
unique ignore cells marked as abstract views (property LEFview
is set) when checking for unconnected nets with the same name
label.
This commit is contained in:
Tim Edwards 2018-10-31 14:33:24 -04:00
parent fa17436fef
commit 6f8ec21a11
3 changed files with 39 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
ext2spice/ext2spice.c
View File

@ -211,7 +211,8 @@ Exttospice_Init(interp)
#define EXTTOSPC_BLACKBOX 11
#define EXTTOSPC_RENUMBER 12
#define EXTTOSPC_MERGENAMES 13
#define EXTTOSPC_HELP 14
#define EXTTOSPC_LVS 14
#define EXTTOSPC_HELP 15
void
CmdExtToSpice(w, cmd)
@ -262,6 +263,7 @@ CmdExtToSpice(w, cmd)
"renumber [on|off] on = number instances X1, X2, etc.\n"
" off = keep instance ID names",
"global [on|off] on = merge unconnected global nets by name",
"lvs apply typical default settings for LVS",
"help print help information",
NULL
};
@ -418,6 +420,27 @@ CmdExtToSpice(w, cmd)
esMergeNames = FALSE;
break;
case EXTTOSPC_LVS:
/* Apply default command settings for LVS */
/* hierarchy = on */
/* format = ngspice */
/* cthresh = infinite */
/* rthresh = infinite */
/* renumber = off */
/* scale = off */
/* blackbox = on */
/* subcircuit top = auto */
esDoHierarchy = TRUE;
esFormat = NGSPICE;
LocCapThreshold = (EFCapValue)INFINITE_THRESHOLD_F;
LocResistThreshold = INFINITE_THRESHOLD;
esDoRenumber = FALSE;
esScale = 0.0;
esDoBlackBox = TRUE;
esDoSubckt = 2;
break;
case EXTTOSPC_SUBCIRCUITS:
if (cmd->tx_argc == 2)
{
@ -489,7 +512,7 @@ CmdExtToSpice(w, cmd)
if (idx < 0)
{
Tcl_SetResult(magicinterp, "Bad format type. Formats are:"
"spice2, spice3, and hspice.", NULL);
"spice2, spice3, hspice, and ngspice.", NULL);
return;
}
else

14
extract/ExtBasic.c
View File

@ -262,11 +262,17 @@ extBasic(def, outFile)
if (!SigInterruptPending)
ExtLabelRegions(def, ExtCurStyle->exts_nodeConn, &nodeList, &TiPlaneRect);
/* Check for "LEFview", for which special output handling */
/* can be specified in ext2spice. */
DBPropGet(def, "LEFview", &isabstract);
/*
* Make sure all geometry with the same label is part of the
* same electrical node.
* same electrical node. However: Unconnected labels are allowed
* on abstract views.
*/
if (!SigInterruptPending && (ExtDoWarn & EXTWARN_DUP))
if (!SigInterruptPending && (ExtDoWarn & EXTWARN_DUP) && !isabstract)
extFindDuplicateLabels(def, nodeList);
/*
@ -306,10 +312,6 @@ extBasic(def, outFile)
}
}
/* Check for "LEFview", for which special output handling */
/* can be specified in ext2spice. */
DBPropGet(def, "LEFview", &isabstract);
if (isabstract) fprintf(outFile, "abstract\n");
/* Output each node, along with its resistance and capacitance to substrate */

6
extract/ExtUnique.c
View File

@ -85,8 +85,14 @@ extUniqueCell(def, option)
Label *lab;
char *text;
int nwarn;
bool isabstract;
nwarn = 0;
/* Check for "LEFview", as we do not care about unique names in abstract views */
DBPropGet(def, "LEFview", &isabstract);
if (isabstract) return nwarn;
HashInit(&labelHash, 32, HT_STRINGKEYS);
TxPrintf("Processing %s\n", def->cd_name);
TxFlush();