Simulation Icons

(Palette window)

The simulation icons add properties to the nodes. Properties are applied to the electric nodes of the circuit in order to serve as simulation guides. You must specify which node is assigned to which voltage before starting the analog simulation.

VDD & VSS. The node is pushed to the power supply voltage with icon Vdd, and pulled to the ground 0V with icon Vss.

CLOCK. When a node becomes a clock, the parameters of the latter are divided as follows : rise time, level one, fall time, and level zero. All values are expressed in nan-second (ns). If you ask for a second clock, the period will be multiplied by two.

- You may alter level 0 and level 1 by entering a new value with the keyboard.
- To generate a clock starting from VDD instead of VSS, click on Invert L/H.
- Use Period * 2 to multiply the clock period by two.
- Use Period /2 to divide the clock period by two.

PULSE. The pulse switches from "Level 0" (0 by default) to "Level 1" (VDD by default" depending on the user-defined time table.

- Enter the string "0101100" and press "Insert". The time-table is updated
- Click "Erase": all lines situated after the selected element of the time-table are erased.

SINUS. The sinusoidal waveform parameters are the amplitude, the offset, frequency and phase.

VISIBLE NODE. Click on the "eye" and click on the existing text in the layout to make the chronograms of the node appear. Initially, all nodes are invisible, but the clocks and impulse nodes are subsequently made visible.

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