Remote-processing RPC-220 Bedienungsanleitung PDF herunterladen (Seite 4)

OVERVIEW SECTION 1

Page 1-1

DESCRIPTION

OVERVIEW SECTION 1

The RPC-220 is a small embedded controller

programmable in C or assembly. Included is a monitor

to facilitate program downloading and debug.

Program ming is usually done on a PC using any 8051

compatible assembler or C compiler. Additional

hardware features include:

! On card flash EP ROM allows pr ogram updates in

the field without removing any parts.

! LCD character port with contrast adjustment. A

keypad may also be connected.

! Second software serial port

! Watchdog timer resets card

! Nineteen + individually programmable digital I/O

lines

! Two PWM outputs (shared with analog outputs)

! Eight channel, 10 bit resolution A-D converter

! Two analog outputs (shared with PWM)

! Real time clock with interrupts

! Low power modes and wide input voltages

The RPC-220 uses a Phillips 80C552 CPU operating at

22.1184 M hz. This CPU is software com patible with the

Intel 8051 series of CP Us.

A monitor is standard with the flash. The monitor

facilitates program development and, when development

is complete can be replaced by the final program. The

ROM can also be replaced by other third party software

interfacing to debugging software.

The RPC-220 is available in 3 different models.

P/N Description

1710 Full featured with 512K battery backed

RAM, real time clock, 32K flash type

EPROM , 10 bit, 8 channel A-D, 2 channel

D-A (derived from PWM signal),

counter/timers. Low power mode draws

less than 5 ma. 5. 0/5.4 to 21 volt power

input without a heat sink. Operating

current is about 90 ma.

1715 Similar to P/N 1710 except RAM is 128K.

Low power mode is 40 ma. Operating

current is about 150 ma.

1720 Low cost version. No clock, battery

backup, analog output, or reset switch.

MANUAL ORGANIZATION

This manual, along with the application disk, provides

information to write C code and download it to the card.

Software examples use the D unfield Micro-C , but should

be adaptable to any other software vendor s.

Each chapter has one or more ready-to-run program

showing how to use a feature. Writing your program

should be a simple matter of combining parts of

programs into your own. The RPC-220 programming

disk has both source code and output for all examples.

Sample programs run stand alone, meaning there is some

measur ement and display going on or an output.

This manual assumes you are familiar with 8051 C

and/or assembly language. If you are not experienced

with C, you may want to refer to books and training

programs available through many colleges. The C

compiler vendor you are using to develop programs will

have programming information specific to the 8051.

80C552 INFORMATION

There are several PDF files which have detailed

information about the 80C552 CPU. These files are

viewed using a PDF re ader suc h as Adobe Acrobat,

version 2.1 or 3 or later. You may print these out to get

more information as they are referred to frequently.

8XC552OV.PDF Program ming information.

80C552X.PDF Electrical information for the

80C552. This is a subset of

FAMHDWR.PDF.

FAMHDWR.PDF 80C51 hardware information.

PROGGUI.PDF 80C51 programming guide.

AN418.PDF 83C552 timer 2 application note.

93017.PDF 8XC552 analog input application

note.

NOTE: Ther e is an err or in the 8X C552O V. PDF data

file. Figures 6 and 7 are in error. The RTE

match to C M1, not CM 2. T he STE register in

Figure 7 sets bits P4. 0 to P4. 5 on a ma tch to

CM1, not CM2.

RTC INFORMATION

The optional real time clock file is 1689-93.PDF. As

with the 80C552 information, these are read and printed

using a PDF reader.

1 2 3 4 5 6 7 8 9 ... 46 47

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