1. How To Read
Simulation Code
“Forces”
In
VHDL
Practical Exam Guide
2. force -freeze sim:/ram_128_8/clk 1 0, 0 {50 ns} -r 100
force -freeze sim:
“Force Command”
ram_128_8
“Program Name”
clk 1 0, 0 {50 ns} -r 100
“Assign Clock with 100ns period to Signal clk”
Done By:
View Signals Click on clk signal Edit Clock Ok
force -freeze sim:/ram_128_8/wr 1 0
force -freeze sim:
“Force Command”
ram_128_8
“Program Name”
wr 1 0
“Assign Value 1 to Signal wr with 0ns Delay ”
Done By:
View Signals Click on wr signal Edit Force
Value = 1 , Delay = 0 Ok
3. force -freeze sim:/ram_128_8/addr 0000000 100
force -freeze sim:
“Force Command”
ram_128_8
“Program Name”
addr 1 0
“Assign Value 0000000 to Signal addr with 100ns Delay ”
Done By:
View Signals Click on addr signal Edit Force
Value = 0000000 , Delay = 100 Ok
force -freeze sim:/rom_128_8/addr 1111101 1400
force -freeze sim:
“Force Command”
rom_128_8
“Program Name”
addr 1111101 1400
“Assign Value 1111101 to Signal addr with 1400ns Delay ”
Done By:
View Signals Click on addr signal Edit Force
Value = 1111101 , Delay = 1400 Ok
4. force -freeze sim:/tlc/start 1 300
force -freeze sim:
“Force Command”
tlc
“Program Name”
start 1 300
“Assign Value 1 to Signal start with 300ns Delay ”
Done By:
View Signals Click on start signal Edit Force
Value = 1 , Delay = 300 Ok
force -freeze sim:/suez/sensor_b 1 1600
force -freeze sim:
“Force Command”
suez
“Program Name”
sensor_b 1 1600
“Assign Value 1 to Signal sensor_b with 1600ns Delay ”
Done By:
View Signals Click on sensor_b signal Edit Force
Value = 1 , Delay = 1600 Ok