New Micros NMIY-0031 Manuale utente

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NMIY-0031

Single Board

Computer

Covers: NMIY-0031 V1.0 4/22/96

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NMIY-0031 TABLE OF CONTENTS

Table of Contents

TABLE OF CONTENTS ..............................................................................................................................3

PART I ...........................................................................................................................................................5

INTRODUCTION .........................................................................................................................................5

CONVENTIONS...............................................................................................................................................7

GETTING STARTED ........................................................................................................................................9

BASIC USERS.........................................................................................................................................10

MONITOR USERS ..................................................................................................................................10

FORTH USERS.......................................................................................................................................11

PART II ........................................................................................................................................................13

HARDWARE...............................................................................................................................................13

CIRCUIT DESCRIPTION ................................................................................................................................15

POWER...................................................................................................................................................16

PROCESSOR ..........................................................................................................................................16

BOARD CONFIGURATION...................................................................................................................16

MEMORY SOCKETS ..............................................................................................................................17

I/O INTERFACES ...................................................................................................................................17

PROTOTYPING AREA ...........................................................................................................................18

I/ O CONNECTORS.......................................................................................................................................19

POWER - J12..........................................................................................................................................19

KEYPAD - J3 ..........................................................................................................................................19

LCD - J6..................................................................................................................................................20

RS232 - J10.............................................................................................................................................20

OPTIONAL CONNECTORS ...................................................................................................................21

RS422/485 - J11......................................................................................................................................21

VERTICAL STACKING CONNECTORS - J1, J7, J9..............................................................................21

LATCHED and NON-LATCHED I/O - J4 and J5 ..................................................................................22

JUMPERS .....................................................................................................................................................23

MEMORY CONFIGURATION JUMPERS .............................................................................................23

RESET.....................................................................................................................................................24

LCD CONTRAST ....................................................................................................................................25

VERTICAL STACKING COMPONENT (VSC) CONFIGURATION JUMPERS....................................25

SERIAL COMMUNICATIONS CONFIGURATION JUMPERS.............................................................26

TROUBLESHOOTING ....................................................................................................................................27

MOUNTING............................................................................................................................................27

POWER SUPPLY....................................................................................................................................27

OPERATING SYSTEM............................................................................................................................27

MEMORY................................................................................................................................................28

TERMINAL .............................................................................................................................................28

KEYPAD and LCD I/O ...........................................................................................................................28

PHYSICAL INSTALLATION OF DEVICES ...........................................................................................28

BOARD MOUNTING .....................................................................................................................................29

NMIY-0031 MOUNTING........................................................................................................................29

VSC MOUNTING....................................................................................................................................29

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PART III ......................................................................................................................................................31

SOFTWARE ................................................................................................................................................31

PROGRAMMING ...........................................................................................................................................33

MEMORY................................................................................................................................................33

DATA PORTS..........................................................................................................................................35

KEYPAD I/F............................................................................................................................................35

LCD I/F...................................................................................................................................................36

SERIAL I/O .............................................................................................................................................38

PROGRAM SEGMENTS..................................................................................................................................39

MONITOR...............................................................................................................................................39

BASIC......................................................................................................................................................41

C..............................................................................................................................................................43

FORTH....................................................................................................................................................46

PART IV.......................................................................................................................................................49

DRAWINGS ................................................................................................................................................49

PARTS LIST .................................................................................................................................................51

SILK SCREEN...............................................................................................................................................53

MECHANICAL DRAWING .............................................................................................................................55

SCHEMATIC .................................................................................................................................................57

....................................................................................................................................................................57

APPENDICES .............................................................................................................................................59

APPENDIX A ..............................................................................................................................................61

APPENDIX B.............................................................................................................................................101

APPENDIX C ............................................................................................................................................147

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NMIY-0031 PART I INTRODUCTION

PART I

Introduction

The NMIY-0031 board is a low cost, production oriented, computer board. Facilities are

included for serial communications, LCD interface, keypad, memory expansion to 64Kbytes of

data and memory each, and raw and latched parallel I/O. It can serve as host for the NMIL

series of Vertical Stacking Component (VSC) cards. This ability gives it a great degree of

flexibility in meeting customer application requirements. The NMIY-0031 design allows

purchasers to configure the board, including only the hardware facilities required by their

application.

The NMIY-0031 has several options that make it adaptable to many uses. The standard

configuration is used as a base to allow the user many paths to achieving the control configuration

that suits their application. To provide the facilities that promote application development, the

installed headers option allow flexibility in configuring memory. Three languages for

development, as well as a monitor, are also available. Other options include an on board power

supply, up to a 64K program EPROM, up to two 32K data ram chips, and three COM port

standards. Customized circuitry can be added in the prototyping area.

Vertical Stacking Component (VSC) options further enhance flexibility. More than a dozen

NMIL series peripheral cards are available to enhance off the shelf hardware solutions for control

systems. Custom card designs can also make use of the VSC connector for connection.

With the combination of 64K program space, 64K data space, and fully customizable interfaces,

the NMIY-0031 processor board provides the user with the ability to construct a cost-effective,

digital control unit for a wide range of applications.

Conventions describes the use of print conventions in this manual.

Getting Started provides some basic functional checks so that the user may quickly determine

the status of the hardware.

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NMIY-0031 CONVENTIONS

Conventions

Several different type faces are used in this manual to distinguish items such as user input, screen

output, etc. This is a guide to reading the type-face conventions employed.

Conventions typeface is used to distinguish chapter titles at the beginning of each

section.

FORTH indicates the formal name of a language, or a title reference to another manual chapter or

chapter subsection title.

Enter highlighting signifies a key name for function keys. In a program dialog, highlighting

indicates a user keyed data entry.

OK indicates a response from software or operating system.

Bold text is used occasionally, where text requires special emphasis.

Command codes and addresses are always given in hexadecimal format.

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NMIY-0031 GETTING STARTED

Getting Started

System operation requires power and communications connections. A standard configuration

board requires 250 mA of regulated +5 VDC at connector J12. The on-board power supply

option requires 6.3 to 10.0 VAC input at connector J2. The MAX232 chip develops its own +/-

10 VDC for RS-232C compatibility.

For development systems, a terminal (or PC with terminal emulation software) must be

connected. A cable with an RS-232 connector (DB25 or DB9) on one end and a 10-pin dual-row

header connector on the other end is required. This cable is not included with the NMIY-0031,

and must be provided by the user or purchased separately from the supplier. The RS-232 serial

connections are present at J10. Pin J10-3 is data-out and pin J10-5 is data-in to the 0031 board.

See the section on I/O Connectors for additional detail on J10 connections.

Once power and terminal connections are established, the operating system or monitor EPROM

in U2 can be used to work with basic board functions, such as the LCD or keypad interfaces.

The RS232 terminal connection requires a 9600 baud terminal with no parity, 8 data bits, and one

stop bit (8N1). On a PC, also check that the terminal emulator program is set to use the same

physical port to which you have attached the serial interface cable( i.e. COM1:, COM2:, etc.).

Examples follow for users of BASIC, Monitor, and FORTH. The examples are intended as quick

checks of board function. When the cursor (underscore) is present in an example, it will blink.

FORTH does not use a cursor.

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NMIY-0031 GETTING STARTED

BASIC USERS

The BASIC EPROM should be installed in U2. BASIC also requires a 32K RAM chip be

installed in U4. EEPROM may be used in U3 at the user’s option. At power on, the terminal

(or emulator) will display:

*MCS-51 ™ BASIC V1.1* ÅBoard power on message at the terminal

READY

>_ ÅPrompt (‘>’) followed by cursor ( ‘_’)

To verify operation, enter the command:

>PRINT “HELLO!” ÅUser input

HELLO! ÅBASIC response; Note: no prompt on this line

If you see something significantly different, please consult the section on Troubleshooting. For

additional information on BASIC please consult the MCS BASIC manual.

MONITOR USERS

For users with the Monitor EPROM in U2, power-on causes the system to start up and display

the message:

NMI 8051 MONITOR V1.10

TYPE ‘H’ FOR HELP

Please note that the monitor commands must be upper case. We strongly recommend that the

user put the keyboard in CAPS LOCK mode when using the monitor. When the user enters H (no

enter needed), the following help menu appears on the terminal:

-------------------------------------------------------------------------------------------------------------

H :help

R <addr> :read internal data memory

D <addr> :read external data memory

P <addr> :read program memory

S <addr> :read special function register

A <addr> <size> :dump internal data memory

U <addr> <size> :dump external data memory

M <addr> <size> :dump program memory

W <addr> <size> :write onto internal data memory

O <addr> <size> :write onto external data memory

T <addr> <size> :write onto special function register

F <addr> <size> <value> :fill external data memory with value

X <addr> :execute

Z <addr> <size> :erase internal data memory

E <addr> <size> :erase external data memory

L :load INTEL HEX file

I <addr> <size> :dump memory in INTEL HEX format

-------------------------------------------------------------------------------------------------------------

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