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README.TXT
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1996-07-25
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===========================================================================
CircuitMaker 4
Schematic Capture and Circuit Simulation
DEMO Version
for Windows 3.1 or greater
A professional level, low cost PCB layout
program called TraxMaker is available separately.
Copyright (c) 1987-1995
MicroCode Engineering, Inc.
573 W. 1830 N. Suite 4
Orem, UT 84057
Tel: (800)419-4242 or (801)226-4470
Fax: (801)226-6532
NOTE: Commercial distribution of this demo without the written permission
of MicroCode Engineering, Inc. is prohibited.
============================================================================
With the DEMO version of CircuitMaker:
- you cannot save any changes.
- you have a limited selection of devices. The full version of
CircuitMaker contains 1500+ devices.
- you may print, export, or simulate any of the circuits provided with
the demo, even if you change the component values or analysis settings.
- you may create and simulate any digital circuit using the limited
devices provided.
- if you make any changes to a circuit (such as adding devices or wires)
you will not be able to print, export or run analog simulations on the
circuit.
System Requirements
===================
- IBM compatible 386 PC or later.
- Math coprocessor recommended for analog simulation.
- 3-1/2" high density disk drive.
- 10MB of available hard disk space and 4MB of RAM.
- Mouse or other pointing device.
- Microsoft Windows 3.1 or later for 16-bit version.
- Windows 95 or Windows NT for 32-bit version.
- VGA (or higher) resolution video card and monitor (color preferred).
Installation
============
1. Use PKUNZIP 2.04g or later to unzip CMDEMO.ZIP into a directory
called CMDEMO.
2. Go to Windows or Windows 95 and run SETUP.EXE.
3. Follow the on-screen prompts.
4. When the installation is finished, double-click on the CircuitMaker
Demo icon to run the demo.
5. The demo can be uninstalled by simply deleting the CMDEMO directory.
What is CircuitMaker?
=====================
CircuitMaker is a powerful, yet easy to use, schematic capture and
circuit simulation program. CircuitMaker's user-friendly interface
allows you to quickly and easily draw, modify and combine analog and
digital circuit diagrams. Its powerful built-in digital and analog
simulation capability can save you time and money by allowing you to
check your designs before you build them. CircuitMaker's many unique
features help relieve the frustration encountered by circuit designers
and encourage creativity and exploration.
TraxMaker is an autorouting Printed Circuit Board (PCB) layout program
which is also available from MicroCode Engineering, Inc. Contact us at
the address below for full details.
Drawing a Schematic
===================
To draw a circuit diagram, you simply use the mouse to select devices
from the library and to connect wires between the devices. Features such
as Autorouting and SmartWires simplify the task of drawing any circuit.
Editing features such as rubberband move of wires and devices, cut, copy
and paste, the ability to rotate and mirror devices, and the ability to
spread the circuit out over several pages, further simplify the circuit
drawing process.
To begin, go to the File menu and open the file labeled "SCHEMA.CIR". A
simple, partially drawn schematic will appear on your screen. Press the
"9" hotkey on the keyboard to select a Logic Display. Place the display
above and to the right of the inverter.
Select the Wire Tool (Alt+W) from the Toolbar and center the cursor on
the output pin of the Logic Switch.
Click and HOLD the left mouse button, then drag the wire to the input
pin of the inverter and release the mouse button to connect the wire.
A round pin dot will appear at each end of the wire to confirm the
connection.
You don't need to be exact when aligning the wire to the pin.
CircuitMaker has a feature called "SmartWires" which automatically
adjusts the wire, connecting it to the input pin. When the cursor gets
close to the pin, a small rectangle is displayed, highlighting the pin.
The wire will snap to the point highlighted by the rectangle. The size
of the rectangle is user programmable in the Preferences dialog box.
Wires can be moved around with the Arrow Tool after they have been
placed in the circuit.
Position the wiring cursor over the output pin of the inverter. Click
and HOLD the mouse button, then drag the end of the wire to the pin of
the Logic Display and release the mouse button.
Manual routing of wires is also available. To route wires manually,
Select the Wire Tool, then click and RELEASE the mouse button to start
the wire. Drag the mouse in the direction you want to go (horizontal or
vertical). An extended wiring cursor is displayed to help you precisely
align wires with other wire, devices, etc. Click once to turn the wire
90 degrees. Double-click to end the wire or single-click on a device
pin or wire.
Editing Features
================
CircuitMaker uses a feature known as "rubberbanding". This allows you
to move a device or wire, while still maintaining full circuit
connectivity. To do this, select the Arrow Tool (Alt+A) from the
Toolbar. Select the display or any other device in the sample circuit,
drag it to a new location and drop it.
Select the Delete Tool (Alt+D) from the Toolbar. Place the tip of the
Delete Tool on a device or wire and click. Use the Delete Tool to
quickly delete unwanted wires, devices and text. To undelete, type
Ctrl+Z.
CircuitMaker allows you to place multi-line, fully stylized text
anywhere in the schematic. To place text, click on the Text Tool (Alt+T)
in the Toolbar, move the cursor to the desired location and click.
These are the basics of drawing a schematic within the CircuitMaker
environment. With CircuitMaker, drawing schematics can be fast, flexible
and fun.
Simulation Overview
===================
One of the most powerful features of CircuitMaker is its ability to
simulate your design. This enables you to detect and correct design
errors prior to investing time and money in the construction of actual
hardware prototypes. CircuitMaker is capable of running two different
types of simulations and IT IS IMPORTANT TO UNDERSTAND THE DIFFERENCES.
The Analog/Digital button in the Toolbar indicates which mode is
selected.
DIGITAL electronics is the world of the computer. The binary 1's and 0's
of the computer are actually the high and low voltage levels of tiny
electronic devices known as integrated circuits. Digital simulation,
then, becomes a relatively simple task because of the limited number of
digital states that must be represented. In general, the digital
devices and instruments in the library--74xxx devices, Data Sequencer,
etc.--are intended to be used with the digital simulator only. The
digital simulator is quick and fully interactive, meaning that you can
flip switches, altering the circuit with the simulation free running
and immediately see the response of the circuit.
ANALOG is the classic world of electronics. There are no logic state
restrictions as in digital electronics; the voltage level of any given
circuit node is not limited to high or low. Analog simulation,
therefore, is much more complex. CircuitMaker's analog