2 month training presentation

8/6/2019 2 Month Training Presentation

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Analog system and Embedded systemdesign

SHIVINDER SINGH


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REAL WORLD OF ELECTRONICSS


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Electronics system design

Design environment

Power system design

Analog system design

Embedded and digital system design


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Design Environment required?


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WHY WE NEED AN EDA TOOL ?

Problem: Designs are bigger now

Debugging become difficult

schedules get tighter budgets are limited

Goals

Allow designers to focus on design . Make Dedicate the right resource to the right job.

At the right time, automatically


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Bigger design diagrams


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DIFFERENT DESIGNENVIRONMENTS

MENTOR GRAPHICS (EPRODUCT DESIGNER)

CADENCE ORCAD DESIGN ENVIRONMENT

PROTEL

CADSTAR

PADS


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OrCAD

OrCAD Capture

OrCAD Layout

OrCAD Smartroute

Tina Pro


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Orcad design flow

Capture

Libraries

Footprint

libraries

Layout

Gerber

tools

Gerber

and drill

files

Gerber and

plotter

drawing


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Orcad Capture(SchematicDesign)

Schematic diagram provides the functional flow andthe graphical representation of an electronic circuit


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Types Of Schematic Designs

Flat Schematic Design

Hierarchical Schematic Design


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Netlist generation

What is Netlist?

Capture Netlist(layout plus) Orcad layout plus


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Orcad layout plus

Pcb design environment for orcad design flow


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Task Involved in Layout Design

Design template selection

Selecting foot prints for different components

Setting up board parameters like grid,place,layers

etc.

Placing parts using reconnect mode

Routing the pcb using online DRC

Copper pouring of entire design

Post processing and generation of gerber data


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LAYOUT


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LINEAR POWER SUPPLYREGULATORS

1)Constant positive voltage regulators.

Example:78xx series

2)Constant negative voltage regulators

Example:79xx series

3)Variable voltage regulators

Example:LM317, LM337


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LINEAR POWER SUPPLY DESIGN USING LM317

AND LM337 Regulator

L2

INDUCTOR AUDIO_0

1234

56

U6

LM337/TO220

ADJ

1

VIN2

VOUT3

J7

CON3

123-VS

D41N4007

1

2

D3

1N40

07

1

2

C8

2200uF 50V

C142200uF 50V

J8

CON3

123

C12

10uF25VTANT

D51N4007

1 2

C15

470uF

50V

C11

104

D21N4007

12

R8

R

C17104

R17

R

C9

470uF50V

U5LM317/TO220

VIN3

ADJ

1

VOUT2

C13

10uF25VTANT

-VS

R

16

1K1W

R12

1K1W

C10

CAP

- +

BR1BRIDGE

2

1

4

3

C16

CAP

R10

POTR9

R

R11

R

R14

POTR13

R

R15

R

L1

INDUCTOR AUDIO_0

123 4

56

VS


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Pin Diagram Of 8051


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Continued

Two 16-bit Timer/Counters

Six Interrupt Sources

Watchdog Timer

Fast Programming Time


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DIP PACKAGE OF AT89S52


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MAX 232 (SERIALCOMMUNICATION)

FEATURES:

Operates with 5V power supply

Two drivers and two receivers

Low supply current..8mA typicalDesigned to be interchangeable with Maxim MAX232

APPLICATIONS:

Battery powered systems

TerminalsModems

Computers


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DS 12887(REAL TIME CLOCK)

Features

Drop-In Replacement for IBM AT Computer Clock/Calendar

RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Yearwith Leap Year Compensation Through 2099

Binary or BCD Time Representation

12-Hour or 24-Hour Clock with AM and PM in 12-Hour Mode

Daylight Saving Time Option

Selectable Intel or Motorola Bus Timing

Interfaced with Software as 128 RAM Locations 14 Bytes of Clock and Control Registers


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Continued

114 Bytes of General-Purpose, Battery-Backed RAM (113Bytes in the DS12C887 and DS12C887A)

RAM Clear Function (DS12885, DS12887A, and

DS12C887A) Interrupt Output with Three Independently MaskableInterrupt Flags

Time-of-Day Alarm Once Per Second to Once Per Day

Periodic Rates from 122s to 500ms

End-of-Clock Update Cycle Flag

Programmable Square-Wave Output

Automatic Power-Fail Detect and Switch Circuitry


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Pin Diagram Of DS 12887


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ADC 0804

Features

80C48 and 80C80/85 Bus Compatible - No Interfacing LogicRequired

Conversion Time < 100s

Easy Interface to Most Microprocessors Will Operate in a Stand Alone Mode

Differential Analog Voltage Inputs

Works with Band gap Voltage References

TTL Compatible Inputs and Outputs

On-Chip Clock Generator 0V to 5V Analog Voltage Input Range (Single + 5V Supply)

No Zero-Adjust Required


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PIN DIAGRAM OF ADC 0804


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INTERFACINGS WITH AT89S8252

LCD Interfacing

Serial Communication

ADC Interfacing

RTC Interfacing


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LCD INTERFACING


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SERIAL COMMUNICATION


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ADC INTERFACING(used for temperature sensor)


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RTC INTERFACING


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CAPTURE OF EVALUATION BOARD

2 month training presentation

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