eldo_user

Post-Processing Library
Waveform Definition With User Defined Functions
Related Topics
Post-Processing Library Example Files
Keyword Parameters
Waveform Definition With User Defined Functions
The .TCL_WAVE command defines a new waveform using a Tcl function. The example files
tcl_wave.cir and expressions.tcl demonstrate how .TCL_WAVE can be used in the netlist to
create waveforms for EZwave to plot using PPL Built-in functions. The waveform expression
must be a single Tcl function.
This enables you to dynamically manage User Defined Functions (UDF) written in Tcl
language. The functions of the post-processor library and other commands are available through
the Tcl interface.
Tip
See “.TCL_WAVE” and “.DEFWAVE” in the Eldo Reference Manual.
Notes
• Built-in PPL functions that act on a waveform cannot be used in Tcl procs that are called
from .DEFWAVE statements. This is because .DEFWAVE expressions represent a
numerical value, and not a waveform.
• The name of the Tcl function inside a .CALL_TCL command is case sensitive. It must
exactly match the name in the .tcl file.
• Tcl function names can be either lowercase or uppercase inside a netlist. However when
they are used outside of a .CALL_TCL command, for example in a resistor expression,
they are converted to uppercase. They must be uppercase inside the Tcl source file.
• .USE_TCL commands must always be placed before the first call to a Tcl function.
Otherwise, Eldo will not be able to parse the expressions using these functions.
Related Topics
Post-Processing Library Example Files
Registering User Defined Functions
Making Specific Calls to User Defined Functions
1140
Eldo® User's Manual, 15.3