Altera Quartus II Scripting - Manual (Page 489)

Chapter 3: Tcl Packages & Commands 3–359
simulator
© July 2013 Altera Corporation Quartus II Scripting Reference Manual
force_simulation_value
Usage
force_simulation_value -node
Options
-node : Hierarchical path name of the signal
: Value to which you want to force the signal
: Radix of
the value to which you want to force the signal. Default value is binary. Value can be
specified using only first 3 (except 4 for fractional) characters. E.g. sig, asc, frac
Description
Forces the specified signal or group of signals to the specified value in the specified radix.
Example
Example 1
---------
project_open gates
initialize_simulation -ignore_vector_file on -end_time 600ns
run_simulation -time 100ns
# Set input values for node "ina" and "inb"
force_simulation_value -node ina 0
force_simulation_value -node inb 1
run_simulation -time 100ns
# Check the value of "$ina NAND $inb"
if {[force_simulation_value -node nand_out] != [expr !($ina && $inb)]} {
puts "$ina NAND $inb = [force_simulation_value -node nand_out]"
}
run_simulation
project_close
Example 2
---------
project_open lelut
initialize_simulation -ignore_vector_file on -end_time 100ns
# Group "inDataa inDatab inDatac inDatad" as "input_bus"
group_simulation_signal -name input_bus {inDataa inDatab inDatac inDatad}
# Set value "1011" for the group of signals
force_simulation_value -node input_bus 1011
# Set value 0 for node "clk1"
force_simulation_value -node clk1 0
run_simulation -time 20ns
# Set value 1 for node "clk1"