Jianjian Song LogicWorks 4 Tutorials (5/15/03) Page 3 of 14
angles by dragging and releasing the wire. A replaced wire can be rerouted by selecting and
dragging it in any direction.
2.5 Labeling inputs and output signals and pins
Click on the text icon (button with letter A) in the Tool Palette. The cursor becomes a pencil. Use
the pencil to pick a wire to be named by clicking on the wire. If your pencil is close to a pin, you
may pick a pin instead of a wire. You can number the pin by giving it a pin number. Pin numbers
can be seen by right clicking on a device and choosing Device Info->Pin Info. By default, pin
numbers are in blue and signal names are in pink.
Choose a wire instead of a pin. Type a name for the wire and then press the enter key.
A signal name can be changed by double clicking on it and then making a change. The name can
be dragged to another location while still associated with the same wire. Conflict will occur if two
wires have the same name.
Label all the signals as shown in the given circuit. Right clicking will restore cursor.
2.6 Connecting binary switches to input pins
Select Simulation IO.clf in the device library palette. Choose Binary Switch. Connect one binary
switch to one input signal of the circuit.
A binary switch can be turn on and off by clicking on it. To modify a binary switch after its
placement, press Shift key and the left mouse button together.
2.7 Connecting binary probes to outputs of the circuit
Double click Binary Probe from the Simulation IO library. Move cursor to Schematic Window.
Connect one probe on each of the two circuit outputs.
0
0
0
0
0
0
0
1
0
1
0
1
1
0
Flash(F)
Left(L)
Left_turn(LT)
Right_turn(RT)
Right(R)
2.8 Verifying logic function of the circuit with binary switches and probes
Notice that the probe values may change when the binary switches change state.
Selecting binary switch values to generate all eight possible input combinations and record the
output probe values. This is one way to verify the function of the circuit.
2.9 Connecting clock devices to input pins and changing clock period
Remove the binary switches by pressing Shift key and the left mouse button while cursor is on a
switch and then pressing Delete key. You can also use the Zip tool to remove any device.
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