Chapter 4 Circuit Simulation

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4.0 CIRCUIT SIMULATIONDesign PIC’s circuit and simulate using simulation software, write the program source code and build (assemble) the program and attach the resulting machine code to the MCU. Hardware testing.

EC501 EMBEDDED SYSTEM APPLICATIONS

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4.1.1 Describe the function of main editing window and mode toolbar.4.1.2 Demonstrate picking devices from the library4.1.3 Explain the MCU properties.4.1.4 List all basic components for PIC’s circuit.4.1.5 Drawing the schematic using simulation software.4.1.6 Write the program source code and attach the resulting machine code to the MCU.

4.1 Know simulation environment in simulation software.

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Pspice-Cct analysis

National InstrumentMultisim & Ultiboard 10-Limited micro-u, only PIC16F84A-Limited animation

Livewire&PCB wizard-Limited animation-no micro-u


• Melukis dan mereka-bentuk litar/skematik.

• Animasi litar. Analog, digital, graf generator, virtual instrument dll.

• Membina prototaip PCB• 3D-view

4.1.1 Describe the function of main editing window and mode toolbar.


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2 – component toolbar, virtual instrument, draw etc

3 – object pick/selector1 – edit toolbar,design toolbar etc

4 – Editing Windows



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New, open, save, print..etc

Toggle grid, zoom in, zoom out, zoom to area..etc

Block copy, block move, block rotate..etc

Toggle wire, add sheet, netlist to Ares..etc

Animation, step animation, pause & stop

Pop-up message



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Cursor

Component mode

Junction dot mode

Buses mode

Text script mode

Wire label

Subcircuit Mode

Terminal Mode

Graph Mode

Devices pin modes

Tape Recorder mode

Generator Mode

Virtual instrument mode

Current probe

Voltage Probe

2D graphics mode



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4.1.2 Demonstrate picking devices from the library


Rotate component, flipBefore put under drawarea

Overview Windows

Pick componentKlik icon Sebelum klik PObject Selector

4.1.3 Explain the MCU properties.


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Refer datasheet pic18f458

4.1.4 List all basic components for PIC’s circuit.


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4.1.5 Drawing the schematic using simulation software.


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4.1.6 Write the program source code and attach the resulting machine code to the MCU.


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LI ST P=18F458#I NCLUDE <P18F458. I NC>

CONFI G WDT=OFF ; Di sabl e wat chdog t i merCONFI G LVP=OFF ; Low- Vol t age pr ogr ammi ng

; di sabl ed ( necessar y f or debuggi ng)

Reg1 EQU 0x300 ; Cr eat e t empor ar y st or age f or del ayReg2 EQU 0x301

ORG 0x00

CLRF TRI SD ; W- - >TRI SDCLRF PORTD ; PORTD=0x00

St ar t I NCF LATD, FCALL Del ayGOTO St ar t

Del ay MOVLW D' 200' ; Del ay f or 250msMOVWF Reg1 ; f or 10MHz cr yst al

D1 MOVLW D' 250'MOVWF Reg2

D2 NOPNOPDECF Reg2BNZ D2DECF Reg1BNZ D1RETURN

END

4.2.1 Demonstrate running the simulation.

4.2 Understand the method to test the design using software simulation software.

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4.2.2 Demonstrate how to display source code debug window.


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1. Pause the simulation.2. Right click on the uController3. Select PIC18 CPU

4.2.3 Demonstrate how to used virtual instrument to measure circuit performance.a. Voltmeter and ammeterb. Oscilloscope


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1. Create a system that count a number start from 0-5 and than buzzer on and off.

2. Develop a system that “sense” an input from the push button (active low) and the LED will blink for 3 times. (used input at PORTB and output also in PORTB)

3. Build a system that detect an input from push button (active high) and LED in PORTC will rotate left and right several times.

Exercise..

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Thank you..

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Chapter 4 Circuit Simulation