Altera Quartus II Scripting Manuale Utente Scaricare il pdf (Pagina 452)

100

101

3–322 Chapter 3: Tcl Packages & Commands

sdc

Example

# Simple output delay with the same value for min/max and rise/fall:

# 1) set on ports with names of the form myout*

set_output_delay -clock clk 0.5 [get_ports myout*]

# 2) set on all output ports

set_output_delay -clock clk 0.5 [all_outputs]

# Output delay with respect to the falling edge of clock

set_output_delay -clock clk -clock_fall 0.5 [get_ports myout*]

# Output delays for different min/max and rise/fall combinations

set_output_delay -clock clk -max -rise 0.5 [get_ports myout*]

set_output_delay -clock clk -max -fall 0.4 [get_ports myout*]

set_output_delay -clock clk -min -rise 0.4 [get_ports myout*]

set_output_delay -clock clk -min -fall 0.3 [get_ports myout*]

# Adding multiple output delays with respect to more than one clock

set_output_delay -clock clkA -min 0.2 [get_ports myout*]

set_output_delay -clock clkA -max 0.8 [get_ports myout*]

set_output_delay -clock clkA -clock_fall 0.6 [get_ports myout*] \

-add_delay

set_output_delay -clock clkB -min 1.1 [get_ports myout*] -add_delay

set_output_delay -clock clkB -max 1.5 [get_ports myout*] -add_delay

# Specifying an output delay relative to an external clock output port

set_output_delay -clock clk -reference_pin [get_ports clkout] 0.8 \

[get_ports myout*]

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