全自动洗衣机控制系统设计文献翻译

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附：英文原文

The General Situation of AT89C51

1 The application of AT89C51

Microcontrollers

are

used

in

a

multitude

of

commercial

applications

such

as

modems,

motor-control systems, air conditioner control systems, automotive engine and among others.

The high processing speed and enhanced peripheral set of these microcontrollers make them

suitable

for

such

high-speed

event-based

applications.

However,

these

critical

application

domains also require that these microcontrollers are highly reliable. The high reliability and

low market risks can be ensured by a robust testing process and a proper tools environment

for

the

validation

of

these

microcontrollers

both

at

the

component

and

at

the

system

level.

Intel

Plaform

Engineering

department

developed

an

object-oriented

multi- threaded

test

environment

for

the

validation

of

its

AT89C51

automotive

microcontrollers.

The

goals

of

thisenvironment

was

not

only

to

provide

a

robust

testing

environment

for

the

AT89C51

automotive microcontrollers, but to develop an environment which can be easily extended and

reused

for

the

validation

of

several

other

future

microcontrollers.

The

environment

was

developed

in

conjunction

with

Microsoft

Foundation

Classes

(AT89C51).

The

paper

describes

the

design

and

mechanism

of

this

test

environment,

its

interactions

with

various

hardware/software environmental components, and how to use AT89C51.

1.1 Introduction

The

8-bit

AT89C51

CHMOS

microcontrollers

are

designed

to

handle

high- speedcalculations

and

fast

input/output

operations.

MCS

51

microcontrollers

are

typically

used

for

high-speed

event

control

systems.

Commercial

applications

include

modems,motor-control

systems, printers, photocopiers, air conditioner control systems,

disk

drives,and

medical

instruments.

The

automotive

industry

use

MCS

51

microcontrollers

in

engine-control

systems,

airbags,

suspension

systems,

and

antilock

braking

systems

(ABS).

The AT89C51 is especially well suited to applications that benefit from its processing speed