MDA_WinIDE8086_Manual.hwp MDA Win IDE8086 Manual

MDA-Win8086

MANUAL

An Integrated Development Environment kit

User's Manual

Documentation Version 10.0

Midas Engineering co., ltd.

ACE Techno-Tower Ⅴ#906, 197-22,

Guro-Dong Guro-Gu, Seoul, KOREA

Tel. +82-2-2109-5964~7 Fax. +82-2-2109-5968

www.midaseng.com E_mail. info@midaseng.com

◆

◆ PREFACE

PREFACE

PREFACE ◆

◆

The first 50 years of the 20th century witnessed the invention of the

internal combustion engine, which greatly extended the physical strength of

the human body.

In the second half of the century, the birth of the microprocessor further

extended our mental capabilities. Applications of this amazing product in

various industries have introduced so much impact on our lives, hence, it is

called the second industrial Revolution.

Microcomputers represent a total change in designing systems. Both

industrial and academic institutions are active in the development and search

for new applications for microcomputers.

This book is designed to be used in conjunction with the "multi tech"

MDA-Win8086 Microcomputers as part of a one-year laboratory class on

microcomputers. With the aid of this book, students will be able to learn the

fundamentals of microcomputers, from basic CPU instructions to practical

applications.

The first part of this book is an introduction to the basic concepts of

microcomputer programming. It lays the foundation for year studies, the

second part of this book is the microcomputer hardware, such as ,

input/output, interrupt, timer and counter experiment, and experiments using

microcomputer instructions, such as, data transfers, arithmetic and logic

operations, jump and subroutine and memory address allocation in simple

program. Experiments involving more complicated arithmetic operations, such

as, binary to decimal conversion, decimal to binary conversion, multiplication,

division are presented.

There are various experiments in this book which are designed to

familiarize the student with the fundamentals of input/output programming.

These programs are centered around the keyboard and display. These

experiments establish the foundation for later experiments involving a simple

monitor program, which leads to more complicated MDA-Win8086 programs.

PART I :

MDA-Win8086 USER'S MANUAL

TABLE OF CONTENTS

1. MDA-Win8086 SYSTEM CONFIGURATION ············································· 1

2. OPERATION INTRODUCTION ···································································· 5

2-1. FUNCTION OF KEYS ······························································································ 5

2-2. BASIC OPERATION ································································································· 6

3. EXAMPLE PROGRAM ················································································ 13

4. Serial Monitor ································································································ 21

4-1. How to setup the serial monitor ············································································ 21

4-2. How to connect MDA-Win8086 to your PC ························································ 22

4-3. MDA-WinIDE8086 Installation ················································································ 23

4-4. Tutorial ······················································································································· 24

4-4-1. Launching MDA-WinIDE8086 ······································································· 24

4-4-2. About MDA-WinIDE8086 ·············································································· 25

4-4-3. Assembling and Compiling the source ························································· 29

4-4-4. Troubleshooting ·································································································· 30

4-4-5. Port setting ········································································································· 30

4-4-6. Download and execute the source file ··························································· 31

4-4-7. Other Serial monitor command ········································································ 32

5. 8086 INTERRUPT SYSTEM ······································································· 39

5-1. PREDEFINED INTERRUPTS (0 TO 4) ······························································· 41

5-2. INTERRUPT EXPERIMENT ··················································································· 42

5-3. USER-DEFINED SOFTWARE INTERRUPTS ····················································· 43

5-4. 8259A INTERRUPT CONTROL ············································································ 45

6. 8253 INTERFACE ························································································· 46

PART II :

MDA-Win8086 EXPERIMENTS

(SOFTWARE/HARDWARE)

TABLE OF CONTENTS

Experiment 1. 8255A Interface ········································································· 48

1-1. 7-Segment ··················································································································· 49

1-2. LED ···························································································································· 49

Experiment 2. Dot-Matrix LED ········································································ 50

2-1. Dot-Matrix LED Display ·························································································· 50

2-2. Dot-Matrix LED Interface ························································································ 51

2-3. SPEAKER Interface ·································································································· 57

Experiment 3. 8251A Interface ········································································· 59

Experiment 4. LCD Display ·············································································· 62

4-1. LCD ···························································································································· 62

4-2. LCD Interface ·········································································································· 66

Experiment 5. Keyboard Interface ···································································· 68

5-1. Keyboard Interface ···································································································· 68

EXPERIMENT 6. D/A CONVERTER ····························································· 71

6-1. D/A Converter Specification ···················································································· 71

6-2. D/A Converter Interface ··························································································· 73

6-3. D/A Converter Experiment ······················································································ 74

Experiment 7. A/D Converter ··········································································· 76

7-1. A/D Converter Specification ·················································································· 76

7-2. A/D Converter Interface ························································································· 78

7-3. A/D Converter Experiment ···················································································· 78

EXPERIMENT 8. Stepping Motor Control ····················································· 80

8-1. Stepping Motor Specification ················································································· 80

8-2. Stepping Motor Interface ························································································ 83

8-3. Stepping Motor Experiment ··················································································· 84

APPENDIX

MDA-Win8086 APPENDIX

TABLE OF CONTENTS

1. MDA-Win8086 Circuit Diagram ································································ 86

2. MDA-Win8086 External Connector ····························································· 92

3. 8086 Pin Configuration. ·············································································· 95

4. 8086 Instruction Set Summary. ·································································· 96

2-1 FUNCTION OF KEYS

MDA-Win8086 MANUAL - 1 -

1. MDA-Win8086 SYSTEM CONFIGURATION

FIGURE 1. MDA-Win8086 SYSTEM CONFIGURATION

1. MDA-Win8086 SYSTEM CONFIGURATION

- 2 - MDA-Win8086 MANUAL

☞ The function of IC's at Figure 1.

① CPU(Central processing unit) : Using Intel 8086, Using 14.7456㎒.

② ROM(Read Only Memory) : It has program to control user's key input,

LCD display, user's program. 64K Byte, it has data communication program.

Range of ROM Address is F0000H~FFFFFH.

③ SRAM(Static Random Access Memory) : Input user's program & data.

Address of memory is 00000H~0FFFFH, totally 64K Byte.

④ DISPLAY : Text LCD Module, 16(Characters)×2(Lines)

⑤ KEYBOARD : It is used to input machine language.

There are 16 hexadecimal keys and 8 function keys.

⑥ SPEAKER : Sound test.

⑦ RS-232C : Serial communication with IBM compatible PC.

⑧ DOT MATRIX LED : To understand & test the dot matrix structure and

principle of display. It is interfaced to 8255A(PPI).

⑨ A/D CONVERTER : ADC0804 to convert the analog signal to digital

signal.

⑩ D/A CONVERTER : DAC0800 (8-bits D/A converter) to convert the

digital signal to the analog signal and to control the level meter.

⑪ STEPPING MOTOR INTERFACE : Stepping motor driver circuit is designed.

⑫ POWER : AC 110~220V, DC +5V 3A, +12V 1A, -12V 0.5A SMPS.

2-1 FUNCTION OF KEYS

MDA-Win8086 MANUAL - 3 -

󰂁> MDA-Win8086 ADDRESS MAP

① Memory map

ADDRESS MEMORY DESCRIPTION

00000H ~ 0FFFFH RAM PROGRAM & DATA MEMORY

F0000H ~ FFFFFH ROM MONITOR ROM

10000H ~ EFFFFH USER'S RANGE

② I/O address map

ADDRESS I/O PORT DESCRIPTION

00H ~ 07H LCD &

KEYBOARD LCD Display

00H : INSTRUCTION REGISTER

02H : STATUS REGISTER

04H : DATA REGISTER

KEYBOARD

01H : KEYBOARD REGISTER (Only read)

01H : KEYBOARD FLAG (Only write)

08H ~ 0FH 8251 / 8253 8251(Using to data communication)

08H : DATA REGISTER

0AH : INSTRUCTION / STATUS REGISTER

8253(TIMER/COUNTER)

09H : TIMER 0 REGISTER

0BH : TIMER 1 REGISTER

0DH : TIMER 2 REGISTER

0FH : CONTROL REGISTER

10H ~ 17H 8259/SPEAKER 8259(Interrupt controller)

10H : COMMAND REGISTER

12H : DATA REGISTER

SPEAKER 11H : SPEAKER

18H ~ 1FH 8255A-CS1/

8255A-CS2

8255A-CS1(DOT & ADC INTERFACE)

18H : A PORT DATA REGISTER

1AH : B PORT DATA REGISTER

1CH : C PORT CONTROL REGISTER

8255-CS2(LED & STEPPING MOTOR)

19H : A PORT DATA REGISTER

1BH : B PORT DATA REGISTER

1DH : C PORT CONTROL REGISTER

1FH : CONTROL REGISTER

20H ~ 2FH I/O EXTEND CONNECTOR

30H ~ FFH USER'S RANGE

2. OPERATION INTRODUCTION

- 4 - MDA-Win8086 MANUAL

2. OPERATION INTRODUCTION

2‐1.FUNCTIONOFKEYS

MDA-Win8086 has high performance 64K-byte monitor program. It is

designed for easy function. After power is on , the monitor program begins

to work. In addition to all the key function the monitor has a memory

checking routine.

The following is a simple description of the key functions.

FUNCTION KEY DATA KEY

RES

GO STP C D E F

+REG 8 9 A B

-DA 4 5 6 7

MON :AD 0123

RES system reset STP execute user's program,

a sin

g

le ste

p

AD set memory address GO go to user's program or execute

monitor functions

DA Update segment & Offset.

and in

p

ut data to memor

y

MON Immediately

b

reak user's program

and Non makable interru

p

t.

:Offset. REG Register Display.

+Segment & Offset +1 increment.

Re

g

ister dis

p

la

y

increment.

-Segment & Offset -1 increment.

Re

g

ister dis

p

la

y

decrement.

2-2. BASIC OPERATION

MDA-Win8086 MANUAL - 5 -

2‐2.BASICOPERATION

On a power-up, following message will be displayed on a LCD.

MDE8086 Kit V9.5

Midas 2109-5964/5 Or Serial monitor !

Midas 2109-5964/5

Figure 1-1. Figure 1-2.

To select the Machine Code and Serial monitor mode with P1 switch.

SELECT

MODE

G+5

KIT PC

P1

Machine Code

☞

SELECT

MODE

G+5

KIT PC

P1

Serial monitor

※ RES System Reset Key

Whenever RES is pressed, the display becomes FIGURE 1-1 or FIGURE

1-2.

2. OPERATION INTRODUCTION

- 6 - MDA-Win8086 MANUAL

※ AD , : HEXA-DIGIT KEY : Substitute to segment & offset

,

address

EXAMPLE 1 ) Check the contents in memory.

KEY LCD

AD Seg. 0set data

0000 1000 FF

Input data offset

[The contents of memory 0000:1000

( It may be different)]

F Seg. 0set data

000F 1000 FF

Input data offset

[The contents of memory 000F:1000 (

It may be different)]

0 Seg. 0set data

00F0 1000 FF

Input data offset

[The contents of memory 00F0:1000

( It may be different)]

0 Seg. 0set data

0F00 1000 FF

Input data offset

[The contents of memory 0F00:1000

( It may be different)]

2-2. BASIC OPERATION

MDA-Win8086 MANUAL - 7 -

0 Seg. 0set data

F000 1000 FF

Input data offset

[The contents of memory F000:1000

( It may be different)]

: Seg. 0set data

F000 1000 FF

segment offset

[The contents of memory F000:1000

( It may be different)]

0 Seg. 0set data

F000 0000 FF

Input data offset

[The contents of memory F000:0000]

※ AD , + , -

KEY : Increment and decrement to segment & offset address.

When the power is on or press the RES key, following message will be

displayed on LCD.

MDE8086 Kit V9.5

Midas 2109-5964/5

When the AD key is pressed,

2. OPERATION INTRODUCTION

- 8 - MDA-Win8086 MANUAL

KEY LCD

AD Seg. 0set data

0000 1000 FF

Input data offset

[The contents of memory 0000:1000

( It may be different)]

+ Seg. 0set data

0001 1000 FF

segment +1 increment

[The contents of memory 0001:1000

( It may be different)]

+ Seg. 0set data

0002 1000 FF

segment +1 increment

[The contents of memory

0002:1000( It may be different)]

- Seg. 0set data

0001 1000 FF

segment -1 increment

[The contents of memory 0001:1000

( It may be different)]

※ AD , :,

HEXA-DIGIT KEY : Update to memory contents.

2-2. BASIC OPERATION

MDA-Win8086 MANUAL - 9 -

EXAMPLE 2 ) Let's store the following like to 01000H ～ 01003H

contents.

< ADDRESS DATA>

01000 AB

01001 CD

01002 EF

01003 34

KEY LCD

RES MDE8086 Kit V9.5

Midas 2109-5964/5

AD Seg. 0set data

0000 1000 FF

segment offset

[The contents of memory 0000:1000]

DA Seg. 0set data

0000 1000 FF

segment offset

[The contents of memory 0000:1000

(It may be different)]

A B Seg. 0set data

0000 1000 AB

Seg. 0set data

0000 1001 FF

Offset increment

+

2. OPERATION INTRODUCTION

- 10 - MDA-Win8086 MANUAL

CD Seg. 0set data

0000 1001 CD

Seg. 0set data

0000 1002 FF

Offset increment

+

E F Seg. 0set data

0000 1002 EF

Seg. 0set data

0000 1003 FF

Offset increment

+

3 4 Seg. 0set data

0000 1003 34

Seg. 0set data

0000 1004 FF

Offset increment

+

※ REG , +, -KEY : Display to register contents.

KEY LCD

RES AX=0000 BX=0000

CX=0000 DX=0000

Current register contents.

+ SP=0540 BP=0000

SI=0000 DI=0000

2-2. BASIC OPERATION

MDA-Win8086 MANUAL - 11 -

+ DS=0000 ES=0000

SS=0000 CS=0000

+ IP=1000 FL=0000

=....................

↓

Current register contents.

- DS=0000 ES=0000

SS=0000 CS=0000

- SP=0540 BP=0000

SI=0000 DI=0000

3. EXAMPLE PROGRAM

- 12 - MDA-Win8086 MANUAL

3. EXAMPLE PROGRAM

♣ STP Single Step

Store a following program in RAM and execute it by single steps.

ADDRESS MACHINE CODE MNEMONIC

1000 B8 0000 MOV AX ,0

1003 9E SAHF

1004 05 8947 ADD AX, 4789H

1007 15 8864 ADC AX, 6488H

100A 04 88 ADD AL, 88H

100C 80 D4 33 ADC AH, 33H

;

100F 2D 6735 SUB AX, 3567H

1012 1D 0080 SBB AX, 8000H

1015 2C 45 SUB AL, 45H

1017 80 DC 78 SBB AH, 78H

;

101A B0 FF MOV AL, FFH

101C FE C0 INC AL

101E FE C8 DEC AL

1020 98 CBW

1021 F6 D8 NEG AL

;

1023 B0 F0 MOV AL, F0H

1025 B3 11 MOV BL, 11H

1027 F6 E3 MUL BL

;

1029 B8 00F0 MOV AX, F000H

102C BB 3412 MOV BX, 1234H

102F F7 EB IMUL BX

3. EXAMPLE PROGRAM

MDA-Win8086 MANUAL - 13 -

KEY LCD

RES MDE8086 Kit V9.5

Midas 2109-5964/5

AD Seg. 0set data

0000 1000 B8

segment offset

[The contents of memory 0000:1000]

;

1031 B8 F000 MOV AX, 00F0H

1034 B3 10 MOV BL, 10H

1036 F6 F3 DIV BL

;

1038 BA FFFF MOV DX, -1

103B B8 FFFF MOV AX, -1

103E BB 0100 MOV BX, 1

1041 F7 FB IDIV BX

;

1043 CC INT 3

① Again, using with machine code input program from 1000H.

② It is valid only when the display is in current Flag form. Pressing

"STP" key causes the CPU to execute one instruction point according to

the user's PC. After execution, the monitor regains control and displays the

new PC and its contents. The user may examine and modify registers and

memory contents after each step.

3. EXAMPLE PROGRAM

- 14 - MDA-Win8086 MANUAL

1) MOV AX, 0

STP

(Next address)

IP=1003 FL=0100

=...t......

Current Flag content (It means single

step)

Result verify !

+ AX=0000 BX=0000

CX=0000 DX=0000

Current Register content

2) SHAF

STP

(Next address)

IP=1004 FL=0100

=...t......

3) ADD AX, 4789H

STP

(Next address)

IP=1007 FL=0100

=...t......

Result verify !

+ AX=4789 BX=0000

CX=0000 DX=0000

4) ADC AX, 6488H

STP

(Next address)

IP=100A FL=0994

=o..ts.ap.

(over flag set, alternate carry set,

sign flag set, parity flag set)

Result verify !

+ AX=AC11 BX=0000

CX=0000 DX=0000

3. EXAMPLE PROGRAM

MDA-Win8086 MANUAL - 15 -

5) ADD AL, 88H

STP

(Next address)

IP=100C FL=0184

=o..ts..p.

(sign flag set, parity flag set)

Result verify !

+ AX=AC99 BX=0000

CX=0000 DX=0000

6) ADC AH, 33H

STP

(Next address)

IP=100F FL=0180

=...ts....

Result verify !

+ AX=DF99 BX=0000

CX=0000 DX=0000

7) SUB AX, 3567H

STP

(Next address)

IP=1012 FL=0180

=...ts....

Result verify !

+ AX=AA32 BX=0000

CX=0000 DX=0000

8) SBB AX, 8000H

STP

(Next address)

IP=1015 FL=0100

=...t.....

Result verify !

+ AX=2A32 BX=0000

CX=0000 DX=0000

9) SUB AL, 45H

STP

(Next address)

IP=1017 FL=0195

=...ts.apc

3. EXAMPLE PROGRAM

- 16 - MDA-Win8086 MANUAL

Result verify !

+ AX=2AED BX=0000

CX=0000 DX=0000

10) SBB AH, 78H

STP

(Next address)

IP=101A FL=0185

=...ts..pc

Result verify !

+ AX=B1ED BX=0000

CX=0000 DX=0000

11) MOV AL, FFH

STP

(Next address)

IP=101C FL=0185

=...ts..pc

Result verify !

+ AX=B1FF BX=0000

CX=0000 DX=0000

12) INC AL

STP

(Next address)

IP=101E FL=0155

=...t.zapc

Result verify !

+ AX=B100 BX=0000

CX=0000 DX=0000

13) DEC AL

STP

(Next address)

IP=1020 FL=0195

=...ts.apc

Result verify !

+ AX=B1FF BX=0000

CX=0000 DX=0000

14) CBW

STP

(Next address)

IP=1021 FL=0195

=...ts.apc

3. EXAMPLE PROGRAM

MDA-Win8086 MANUAL - 17 -

Result verify !

+ AX=FFFF BX=0000

CX=0000 DX=0000

15) NEG AL

STP

(Next address)

IP=1023 FL=0111

=...t..a.c

Result verify !

+ AX=FF01 BX=0000

CX=0000 DX=0000

16) MOV AL, F0H

STP

(Next address)

IP=1025 FL=0111

=...t..a.c

Result verify !

+ AX=FFF0 BX=0000

CX=0000 DX=0000

17) MOV BL, 11H

STP

(Next address)

IP=1027 FL=0111

=...t..a.c

Result verify !

+ AX=FFF0 BX=0011

CX=0000 DX=0000

18) MUL BL

STP

(Next address)

IP=1029 FL=0905

=o..t...pc

Result verify !

+ AX=0FF0 BX=0011

CX=0000 DX=0000

19) MOV AX, F000H

STP

(Next address)

IP=102C FL=0905

=o..t...pc

3. EXAMPLE PROGRAM

- 18 - MDA-Win8086 MANUAL

Result verify !

+ AX=F000 BX=0011

CX=0000 DX=0000

20) MOV BX, 1234H

STP

(Next address)

IP=102F FL=0905

=o..t...pc

Result verify !

+ AX=F000 BX=1234

CX=0000 DX=0000

21) IMUL BX

STP

(Next address)

IP=1031 FL=0985

=o..ts..pc

Result verify !

+ AX=C000 BX=1234

CX=0000 DX=FEDC

22) MOV AX, 00F0H

STP

(Next address)

IP=1034 FL=0985

=o..ts..pc

Result verify !

+ AX=00F0 BX=1234

CX=0000 DX=FEDC

23) MOV BL, 10H

STP

(Next address)

IP=1036 FL=0985

=o..ts..pc

Result verify !

+ AX=00F0 BX=1210

CX=0000 DX=FEDC

24) DIV BL

STP

(Next address)

IP=1038 FL=0145

=...t.z.pc

3. EXAMPLE PROGRAM

MDA-Win8086 MANUAL - 19 -

Result verify !

+ AX=000F BX=1210

CX=0000 DX=FEDC

25) MOV DX, -1

STP

(Next address)

IP=103B FL=0145

=...t.z.pc

Result verify !

+ AX=000F BX=1210

CX=0000 DX=FFFF

26) MOV AX,-1

STP

(Next address)

IP=103E FL=0145

=...t.z.pc

Result verify !

+ AX=FFFF BX=1210

CX=0000 DX=FFFF

27) MOV BX, 1

STP

(Next address)

IP=1041 FL=0145

=...t.z.pc

Result verify !

+ AX=FFFF BX=0001

CX=0000 DX=FFFF

28) IDIV BX

STP

(Next address)

IP=1043 FL=0144

=...t.z.p.

Result verify !

+ AX=FFFF BX=0001

CX=0000 DX=0000

4. SERIAL MONITOR

- 20 - MDA-Win8086 MANUAL

4. Serial Monitor

Serial monitor is the basic monitor program to do data communicate

between MDA-Win8086 and your computer.

4‐1.Howtosetuptheserialmonitor

Adjust the P1 switch as following figure.

SELECT

MODE

G+5

KIT PC

P1

Serial monitor

4-2 How to connect MDA-Win8086 to your PC

MDA-Win8086 MANUAL - 21 -

4‐2.HowtoconnectMDA‐Win8086toyourPC

① Connect the MDA-Win8086 Kit to a spare serial port on your PC.

FIGURE 4-1. PC 25 PIN - MDA-Win8086 9 PIN connection

FIGURE 4-2. PC 9 PIN - MDA-Win8086 9 PIN connection

4. SERIAL MONITOR

- 22 - MDA-Win8086 MANUAL

4‐3.MDA‐WinIDE8086Installation

➀ Insert the CD in the CD-ROM driver, and double click the file

"SETUP.EXE".

➁ The installation begins.

4-4 Tutorial

MDA-Win8086 MANUAL - 23 -

4‐4.Tutorial

4-4-1 Launching MDA-WinIDE8086

Click the Start button in the task bar, then click All Programs and

MIDAS ENG. Then click the MDA-WinIDE8086 program icon

4. SERIAL MONITOR

- 24 - MDA-Win8086 MANUAL

⑵ The MDA-WinIDE8086 window will be displayed.

4-4-2. About MDA-WinIDE8086

Menu bar

Gives access to the MDA-WinIDE8086 menu.

4-4 Tutorial

MDA-Win8086 MANUAL - 25 -

File menu

The File menu provides command s for opening source files, saving and

exiting from the MDA-WinIDE8086 window.

New Create empty text file

Open Open a file in text editor

Save Save current text file

Save As Save current text file under given name

Exit Exit MDA-WinIDE8086 window

Edit menu

The Edit menu provides command for editing and searching in editor

windows.

Undo Undo last editor action

Cut Cut and copy selected text from editor

Copy Copy selected text form editor

Paste Paste any text form clipboard to the

editor

Find Open a find dialog to search through the

current source file

Select All Select all text at once

Work menu

Assemble

& Link

Assemble and link a source file you

are editing

Compile

& Link

Compile and link a source file your

are editing

Program

Write Download a file to MDA-Win8086

Run menu

Run Start execution of the program

Trace Execute one instruction

4. SERIAL MONITOR

- 26 - MDA-Win8086 MANUAL

Tool bar

The tool bar provides button s for the most useful commands on the

MDA-WinIDE8086 menus.

Button Menu Command

New Create empty text file

Open Open a file in text editor

Save Save current text file

Find Open a find dialog

Undo Undo last editor action

Show Line

Number Show line number

Assemble

& Link Assemble and link a source file you are editing

Compile

& Link Compile and link a source file you are editing

Program write Download an "ABS" file to MDA-Win8086 kit

Memory dump Dump memory contents

Fill data Fill memory with any data

Move block Move memory block

Run The program will be executed

Trace Execute one instruction

Port setting To change the modem's port setting

Editor window

Source file is displayed in the editor window. The MDA-WinIDE8086

editor automatically recognizes the syntax of C program and Assemble program.

4-4 Tutorial

MDA-Win8086 MANUAL - 27 -

Terminal window

Terminal window is that you can use to connect the MDA-Win8086 kit.

4. SERIAL MONITOR

- 28 - MDA-Win8086 MANUAL

4-4-3. Assembling and Compiling the source

Click / button for assembling/compiling to generate an ABS file.

4-4 Tutorial

MDA-Win8086 MANUAL - 29 -

4-4-4. Troubleshooting

The output window lists tool information during the code generation.

You may check on error messages to correct syntax errors in your

program.

4-4-5. Port setting

⑴ After connect the MDA-Win8086 kit to a spare serial port on your PC,

press RESET KEY, then "8086>" prompt will be displayed.

If "8086>" prompt is not displayed, click the button to setup port.

4. SERIAL MONITOR

- 30 - MDA-Win8086 MANUAL

Select the serial port to connected to your PC. (ie. COM1, COM2,

COM3 or COM4 ) BPS : 9600, Parity : None, Stop bits : 1

Press MDA-Win8086 RESET KEY again then "8086>" prompt will be

displayed.

4-4-6. Download and execute the source file

1. Download

Click button or select Program Write from the Work menu.

You can also type 'L' and "Enter" key on Terminal window, then press "Page

Up" button from your keyboard.

4-4. Tutorial

MDA-Win8086 MANUAL - 31 -

2. Execute

⑴ Run

Click button or select "Run" from the Run menu.

You can also type 'G' and "Enter" key on Terminal window.

The Run command in the work menu starts execution of the program. The

program will be executed until it is stopped by pressing RESET KEY.

⑵ Trace

Click button or select "Trace" from the Run menu.

You can also type 'T' and "Enter" key on Terminal window.

The Trace command in the work menu executes one instruction.

4-4-7. Other serial monitor command

User can only use command which stored at serial monitor. Serial

monitor can execute to command when user type command and then

CR(carriage return) key.

5. Serial monitor command

- 32 - MDA-Win8086 MANUAL

⌘ If there is no any command at serial monitor, error message will be

displayed with bell sound and serial monitor prompt will be displayed

again.

** 8086 Monitor 9.5 **

** Midas 2109-9964/5 **

8086 >

󰏮

Carriage Return

8086 >?

󰏮

HELP...............................................................................:COMMAND

E segment : offset.........................................................: Enter Data To Memory

D segment : offset length............................................: Dump Memory Contents

R [register name]...........................................................: Register Display & Change

M address1, length, address2.......................................: Move Memory From 1 to 2

F address, length, data..................................................: Fill Memory With Any Data

L Return key..................................................................: Program Down Load

G segment : offset..........................................................: Execute Program

T.......................................................................................: Program 1 step execute

Memory modify command.

Segment Offset

8086 >E 0000:1000

󰏮

0000:1000 FF ? 11

󰏮

0000:1001 FF ? 22

󰏮

0000:1002 FF ? 33

󰏮

0000:1003 FF ? 44

󰏮

0000:1004 FF ? 55

󰏮

0000:1005 FF ? /

󰏮

(Offset decrement)

0000:1004 55 ? /

󰏮

Memory display command.

4-4. Tutorial

MDA-Win8086 MANUAL - 33 -

Click button, then memory dump window will be displayed.

Enter Segment, Offset, and Length, then click "Dump" button.

You can also enter the memory dump command on Terminal window.

Segment Offset Length

8086 >D 0000:1000 FF

󰏮

0000:1000 11 22 33 44 55 FF FF FF - FF FF FF FF FF FF FF FF ."3DU.........

0000:1010 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:1020 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:1030 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:1040 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:1050 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:1060 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:1070 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:1080 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:1090 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:10A0 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:10B0 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:10C0 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:10D0 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:10E0 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

0000:10F0 FF FF FF FF FF FF FF FF - FF FF FF FF FF FF FF FF ...................

8086 > Display the ASCII code to data

4. SERIAL MONITOR

- 34 - MDA-Win8086 MANUAL

Fill certain data in memory.

Click button, then Fill Data window will be displayed.

Enter Segment, Offset, Length, and Data, then click "Fill" button.

You can also enter the Fill Data command on Terminal window.

Segment Offset Length Data

8086 >F 0000:1000 FF 1234

󰏮

Verify

8086 >D 0000:1000 FF

󰏮

0000:1000 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:1010 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:1020 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:1030 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:1040 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:1050 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:1060 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:1070 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:1080 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:1090 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:10A0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:10B0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:10C0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:10D0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:10E0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

4-4. Tutorial

MDA-Win8086 MANUAL - 35 -

0000:10F0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

Block move command.

The Block Move command is used to move blocks of memory from one

area to another.

Click button, then Move window will be displayed.

Enter Segment, Offset, Length, and Address, then click "Move" button.

You can also enter the Block Move command on Terminal window.

Segment Offset Length Data

8086 >M 0000:1000 FF 2000

󰏮

Resulting ?

8086 >D 0000:2000

󰏮

0000:2000 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:2010 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:2020 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:2030 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:2040 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:2050 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:2060 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:2070 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:2080 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:2090 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

4. SERIAL MONITOR

- 36 - MDA-Win8086 MANUAL

0000:20A0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:20B0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:20C0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:20D0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:20E0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

0000:20F0 12 34 12 34 12 34 12 34 - 12 34 12 34 12 34 12 34 .4.4.4.4.4.4.4.4

Display Registers command.

The R command is used to display the i8086 processor registers.

8086 >R

󰏮

AX=0000 BX=0000 CX=0000 DX=0000

SP=0540 BP=0000 SI=0000 DI=0000

DS=0000 ES=0000 SS=0000 CS=0000

IP=1000 FL=0000 = . . . . . . . . .

Individual register change

8086 >R AX

󰏮

AX=0000 1234

󰏮

BX=0000 4567

󰏮

CX=0000 7788

󰏮

DX=0000 1111

󰏮

SP=0540

󰏮

Result

8086 >R

󰏮

AX=1234 BX=4567 CX=7788 DX=1111

SP=0540 BP=0000 SI=0000 DI=0000

DS=0000 ES=0000 SS=0000 CS=0000

IP=1000 FL=0000 = . . . . . . . . .

8086 >R IP

󰏮

IP=1000

󰏮

8086 >

5. 8086 INTERRUPT SYSTEM

MDA-Win8086 MANUAL - 37 -

5. 8086 INTERRUPT SYSTEM

The 8086 interrupts can be classified into three types. These are

1. Predefined interrupts

2. User-defined software interrupts

3. User-defined hardware interrupts

The interrupt vector address for all the 8086 interrupts are determined

from a table stored in locations 00000H through 003FFH. The starting

addresses for the service routines for the interrupts are obtained by the

8086 using this table. Four bytes of the table are assigned to each

interrupt: two bytes for IP and two bytes for CS. The table may contain

up to 256 8-bit vectors. If fewer than 256 interrupts are defined in the

system, the user need only provide enough memory for the interrupt pointer

table for obtaining the defined interrupts.

The interrupt address vector (contents of IP and CS) for all the

interrupts of the 8086 assigns every interrupt a type code for identifying

the interrupt. There are 256 type codes associated with 256 table entires.

Each entry consists of two addresses, one for storing the IP contents and

the other for storing the CS contents. Each 8086 interrupt physical address

vector is 20 bits wide and is computed from the 16-bit contents of IP and

CS.

For obtaining an interrupt address vector, the 8086 calculates two

addresses in the pointer table where IP and CS are stored for a particular

interrupt type.

For example, for the interrupt type nn(instruction INT nn), the table

address for IP=4×nn and the table address for CS=4×nn+2. For servicing

the 8086's nonmaskable interrupt (NMI pin), the 8086 assigns the type

code 2 to this interrupt. The 8086 automatically executes the INT2

instruction internally to obtain the interrupt address vector as follows:

5. 8086 INTERRUPT SYSTEM

- 38 - MDA-Win8086 MANUAL

Address for IP = 4 × 2 = 00008H

Address for CS = 4 × 2 ＋ 2 = 0000AH

The 8086 loads the values of IP and CS from the 20-bit physical

address 00008H and 0000AH in the pointer table. The user must store the

desired 16-bit values of IP and CS in these locations. Similarly, the IP and

CS values for other interrupts are calculated. The 8086 interrupt pointer

table layout is shown in table 6-1.

Interrupt type code 20-bit Memory Address

↓↓

0IP 00000H

CS 00002H

1IP 00004H

CS 00006H

200008H

0000AH

․

255 IP 003FEH

CS 00400H

TABLE 6-1. 8086 INTERRUPT POINTER TABLE

In response to an interrupt, the 8086 pushes flags, CS, and IP onto the

stack, clears TF and IF flags, and then loads IP and CS from the pointer

table using the type code.

Interrupt service routine should be terminated with the IRET( Interrupt

Return) instruction which pops the top three stack words into IP, CS, and

flags, thus returning to the right place in the main program. The 256

interrupt type codes are assigned as follows;

5-1. PREDEFINED INTERRUPTS (0 TO 4)

MDA-Win8086 MANUAL - 39 -

▶ Types 0 to 4 are for the predefined interrupts.

▶ Types 5 to 31 are reserved by intel for future use.

▶ Types 32 to 255 are acailiable for maskable interrupts.

5‐1.PREDEFINEDINTERRUPTS(0TO4)

The predefined interrupts include DIVISION ZERO (type 0), SINGLE

STEP (type 1), NONMASKABLE INTERRUPT pin(type 2), BREAKPOINT

INTERRUPT (type 3), and INTERRUPT ON OVERFLOW (type 4). The

user must provide the desired IP and CS values in the interrupt pointer

table. The user may also imitate these interrupts through hardware or

software. If a predefined interrupt is not used in a system, the user may

assign some other function to the associated type.

The 8086 is automatically interrupted whenever a division by zero is

attempted. This interrupt is nonmaskable and is implemented by intel as

part of the execution of the divide instruction. When the TF(TRAP flag) is

set by an instruction, the 8086 goes into the single step mode. The TF can

be cleared to zero as follows;

PUSHF ; Save flags

MOV BP, SP ; Move [SP] [BP]

AND [BP+0], 0FEFFH ; Clear TF

POPF

Note that in the above [BP+0] rather than [BP] is used since BP cannot

be used without displacement. Now, to set TF, the AND instruction in the

above should be replaced by OR [BP+0], 0100H.

Once TF is set to one, the 8086 automatically generates a TYPE 1

interrupt after execution of each instruction. The user can write a service

routine at the interrupt address vector to display memory locations and/or

register to debug a program. Single step is nonmaskable and cannot be

enabled by STI (enable interrupt) or CLI (disable interrupt) instruction. The

nonmaskable interrupt is initiated via the 8086 NMI pin.

5. 8086 INTERRUPT SYSTEM

- 40 - MDA-Win8086 MANUAL

It is edge triggered (LOW to HIGH) and must be active for two clock

cycles to guarantee recognition. It is normally used for catastrophic failures

such as power failure. The 8086 obtains the interrupt vector address by

automatically executing the INT2(type 2) instruction internally.

Type 3 interrupt is used for breakpoint and is nonmaskable. The user

inserts the one-byte instruction INT3 into a program by replacing an

instruction. Break points are useful for program debugging.

The INTERRUPT ON OVERFLOW is a type 4 interrupt. This interrupt

occurs if the overflow flag(OF) is set and the INT0 instruction is expected.

The overflow flag is affected, for example, after execution of signed

arithmetic such as MULS (signed multiplication) instruction. The user can

execute the INTO instruction after the MULS. If there is an overflow, an

error service routine written by the user at the type 4 interrupt address

vector is executed.

5‐2.INTERRUPTEXPERIMENT

◎ 1. Internal Interrupt : Division by zero (type 0)

< Sample Program 5-1. Internal Interrupt : Division by zero (type 0)

; FILENAME : INT1.ASM

; PROCESSOR : I8086

ADDRESS MACHINE CODE MNEMONIC

0000 CODE SEGMENT

ASSUME CS:CODE,DS:CODE,ES:CODE,SS:CODE

;

1000 ORG 1000H

1000 B8 1234 MOV AX,1234H

1003 B3 00 MOV BL,00H

1005 F6 F3 DIV BL

1007 90 NOP

1008 90 NOP

5-2. INTERRUPT EXPERIMENT

MDA-Win8086 MANUAL - 41 -

1009 CC INT 3

;

100A CODE ENDS

END

< Sample Program 5-2. Overflow Interrupt >

; FILENAME : INT2.ASM

; PROCESSOR : I8086

ADDRESS MACHINE CODE MNEMONIC

0000 CODE SEGMENT

ASSUME CS:CODE,DS:CODE,ES:CODE,SS:CODE

;

1000 ORG 1000H

1000 B8 1234 MOV AX,1234H

1003 BB 7234 MOV BX,7234H

1006 03 C3 ADD AX,BX

1008 CE INTO

1009 90 NOP

100A 90 NOP

100B CC INT 3

;

100C CODE ENDS

END

5‐3.USER‐DEFINEDSOFTWAREINTERRUPTS

The user can generate an interrupt by executing a two-byte interrupt

instruction INT nn. The INT nn instruction is not maskable by the interrupt

enable flag(IF). The INT nn instruction can be used to test an interrupt

service routine for external interrupts. Type codes 0 to 255 can be used. If

predefined interrupt is not used in a system, the associated type code can

be utilized with the INT nn instruction to generate software(internal)

interrupts.

5. 8086 INTERRUPT SYSTEM

- 42 - MDA-Win8086 MANUAL

< Sample Program 5-3. Software Interrupt >

; FILENAME : INT3.ASM

; PROCESSOR : I8086

ADDRESS MACHINE CODE MNEMONIC

0000 CODE SEGMENT

ASSUME CS:CODE,DS:CODE,ES:CODE,SS:CODE

;

= 0084 V_TAB EQU 21H*4

= 0000 SEG_D EQU 0000H

;

1000 ORG 1000H

1000 B8 0000 MOV AX,SEG_D

1003 8E D8 MOV DS,AX

1005 BB 0084 MOV BX,V_TAB

1008 B8 101F R MOV AX,OFFSET INT_SER

100B 89 07 MOV WORD PTR [BX],AX

;

100D 43 INC BX

100E 43 INC BX

;

100F BA 0000 MOV DX,0

1012 89 17 MOV WORD PTR [BX],DX

;

1014 B8 1234 MOV AX,1234H

1017 BB 6789 MOV BX,6789H

101A CD 21 INT 21H

101C 90 NOP

101D 90 NOP

101E CC INT 3

;

101F 03 C3 INT_SER: ADD AX,BX

1021 CF IRET

;

5-4. 8259A INTERRUPT CONTROL

MDA-Win8086 MANUAL - 43 -

1022 CODE ENDS

END

5‐4.8259AINTERRUPTCONTROL

The Intel 8259A Programmable interrupt controller handes up to eight

sectored priority interrupts for the CPU. It is cascadable for up to 64

vectored probity interrupts without additional circuity. It is packaged in a

28-pin DIP, uses NMOS technology and requires a single +5V supply.

Circuity is static, requiring no clock input.

The 8259A is designed to minimize the software and real time overhead

in handling multi-level priority interrupts. It has several modes, permitting

optimization for a variety of system requirements.

Refer to 8259A data sheet for more detail.

The 8259A and MDA-Win8086 interface is shown in Figure 5-1.

FIGURE 5-1. 8259A INTERFACE

1. 8255A INTERFACE

- 44 - MDA-Win8086 MANUAL

6. 8253 INTERFACE

The 8253 is programmable interval timer/counter specifically designed for

use with the Intel Micro-computer systems. Its function is that of a gernal

purpose, multi-timing element that can be treated as an array of I/O ports

in the system software.

The 8253 solves one of the most common problems in any

microcomputer system, the generation of accurate time delays under

software control. Instead of setting up timing loops in systems software, the

programmer configures the 8253 to match his requirements, initialize one of

the counters of the 8253 with the desired quantity, then upon command the

8253 will count out the delay and interrupt the CPU when it has

completed its tasks. It is easy to see that the software overhead is finial

and that multiple delays can easily be maintained by assignment of priority

levels.

Other counter/timer functions that are non-delay in nature but also

common to most microcomputers can be implemented with the 8253.

※ Programmable Rate Generator

※ Event Counter

※ Binary Rate Multiplier

※ Real Time Clock

※ Digital One-shot

※ Complex Motor Controller

Refer to 8253 data sheet for more detail.

6. 8253 INTERFACE

MDA-Win8086 MANUAL - 45 -

The 8253 and MDA-Win8086 interface is shown in figure 6-1.

FIGURE 6-1. 8253 INTERFACE

< Sample Program 6-1. LED ON/OF USING 8253 >

※ Setup jumper cap in P2, like following;

◉ ◉

☞☞☞

1. 8255A INTERFACE

- 46 - MDA-Win8086 MANUAL

1. 8255A Interface

MDA-Win8086 MANUAL - 47 -

Experiment 1. 8255A Interface

FIGURE 1-1. 8255A INTERFACE

1. 8255A INTERFACE

- 48 - MDA-Win8086 MANUAL

1‐1.LED

☞☞☞

1‐2.7‐Segment

☞ ☞ ☞ ☞

2-1 Dot-Matrix LED Display

MDA-Win8086 MANUAL - 49 -

Experiment 2. Dot-Matrix LED

2‐1.Dot‐MatrixLEDDisplay

General description :

The KMD D1288C is 1.26 inch height 3mm diameter and 8 × 8 dot

matrix LED displays. The KMD D1288C are dual emitting color type of

red, green chips are contained in a dot with milky and white lens color.

FIGURE 2-1. DOT MATRIX INTERNAL CIRCUIT DIAGRAM

EXPERIMENT 2. DOT-MATRIX LED

- 50 - MDA-Win8086 MANUAL

2‐2.Dot‐MatrixLEDInterface

FIGURE 2-2. DOT-MATRIX LED INTERFACE

< Experiment 2-1. Dot-matrix Experiment >

2-2. DOT-MATRIX LED INTERFACE

MDA-Win8086 MANUAL - 51 -

1.Matrix‐Scrollbottomtotop

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

● ● ● ● ● ● ● ●

☞

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

● ● ● ● ● ● ● ●

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

● ● ● ● ● ● ● ●

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

● ● ● ● ● ● ● ●

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

● ● ● ● ● ● ● ●

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

● ● ● ● ● ● ● ●

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

● ● ● ● ● ● ● ●

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

● ● ● ● ● ● ● ●

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

※ Setup jumper cap, like following;

◉ ◉

P6

EXPERIMENT 2. DOT-MATRIX LED

- 52 - MDA-Win8086 MANUAL

2. Matrix - Scroll left to right

● ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ● ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ◯ ● ◯ ◯ ◯ ◯ ◯

☞

◯ ◯ ◯ ● ◯ ◯ ◯ ◯

☞

◯ ◯ ◯ ◯ ● ◯ ◯ ◯

☞

◯ ◯ ◯ ◯ ◯ ● ◯ ◯

☞

◯ ◯ ◯ ◯ ◯ ◯ ● ◯

☞

◯ ◯ ◯ ◯ ◯ ◯ ◯ ●

※ Setup jumper cap, like following;

◉ ◉

P6

2-2. DOT-MATRIX LED INTERFACE

MDA-Win8086 MANUAL - 53 -

3. Matrix - Display 'A'

◯ ◯ ◯ ● ● ◯ ◯ ◯

◯ ◯ ● ◯ ◯ ● ◯ ◯

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ● ● ● ● ● ● ◯

◯ ● ◯ ◯ ◯ ◯ ● ◯

※ Setup jumper cap, like following;

◉ ◉

P6

EXPERIMENT 2. DOT-MATRIX LED

- 54 - MDA-Win8086 MANUAL

4. Matrix - Scroll 'A' left to right

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

● ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

● ◯ ◯ ◯ ◯ ◯ ◯ ◯

◯ ● ◯ ◯ ◯ ◯ ◯ ◯

● ● ◯ ◯ ◯ ◯ ◯ ◯

◯ ● ◯ ◯ ◯ ◯ ◯ ◯

☞

● ◯ ◯ ◯ ◯ ◯ ◯ ◯

◯ ● ◯ ◯ ◯ ◯ ◯ ◯

◯ ◯ ● ◯ ◯ ◯ ◯ ◯

● ● ● ◯ ◯ ◯ ◯ ◯

◯ ◯ ● ◯ ◯ ◯ ◯ ◯

☞

● ● ◯ ◯ ◯ ◯ ◯ ◯

◯ ◯ ● ◯ ◯ ◯ ◯ ◯

◯ ◯ ◯ ● ◯ ◯ ◯ ◯

● ● ● ● ◯ ◯ ◯ ◯

◯ ◯ ◯ ● ◯ ◯ ◯ ◯

☞

◯ ● ● ◯ ◯ ◯ ◯ ◯

● ◯ ◯ ● ◯ ◯ ◯ ◯

◯ ◯ ◯ ◯ ● ◯ ◯ ◯

● ● ● ● ● ◯ ◯ ◯

◯ ◯ ◯ ◯ ● ◯ ◯ ◯

☞

◯ ◯ ● ● ◯ ◯ ◯ ◯

◯ ● ◯ ◯ ● ◯ ◯ ◯

● ◯ ◯ ◯ ◯ ● ◯ ◯

● ● ● ● ● ● ◯ ◯

● ◯ ◯ ◯ ◯ ● ◯ ◯

☞

◯ ◯ ◯ ● ● ◯ ◯ ◯

◯ ◯ ● ◯ ◯ ● ◯ ◯

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ● ● ● ● ● ● ◯

◯ ● ◯ ◯ ◯ ◯ ● ◯

※ Setup jumper cap, like following;

◉ ◉

P6

2-2. DOT-MATRIX LED INTERFACE

MDA-Win8086 MANUAL - 55 -

5. Matrix - Scroll 'A' top to bottom

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ● ● ● ● ● ● ◯

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ● ● ● ● ● ● ◯

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ● ● ● ● ● ● ◯

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ◯ ● ◯ ◯ ● ◯ ◯

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ● ● ● ● ● ● ◯

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ◯ ◯ ◯ ◯ ◯ ◯ ◯

☞

◯ ◯ ◯ ● ● ◯ ◯ ◯

◯ ◯ ● ◯ ◯ ● ◯ ◯

◯ ● ◯ ◯ ◯ ◯ ● ◯

◯ ● ● ● ● ● ● ◯

◯ ● ◯ ◯ ◯ ◯ ● ◯

※ Setup jumper cap, like following;

◉ ◉

P6

EXPERIMENT 2. DOT-MATRIX LED

- 56 - MDA-Win8086 MANUAL

2‐3.SPEAKERInterface

FIGURE 2-3. SPEAKER INTERFACE

1. Make sound

Make a laser beam sound.

2-2. DOT-MATRIX LED INTERFACE

MDA-Win8086 MANUAL - 57 -

2. Make the musical scale

Keypad 0123456789ABCDEF

Scale G A B C D E F G A B C D E F G A

EXPERIMENT 3. 8251A Interface

- 58 - MDA-Win8086 MANUAL

Experiment 3. 8251A Interface

8251A is an advanced design of the industry standard USART, the Intel

8251. The 8251A operates with an extended range of Intel microprocessors

that includes the new 8085 CPU and maintains compatibility with the 8251.

Familiarization time is minimal because of compatibility and involves only

knowing the additional features and enhancements, and reviewing the AC

and DC specification of the 8251A.

The 8251A incorporates all the key features of the 8251 and has the

following additional features and enhancements;

◐ 8251A has double-buffered data paths with separate I/O registers for

control, status, Data in, and Data out, which considerably simplifies control

programming and minimizes CPU overhead.

◐ In asynchronous operations, the Receiver detects and handles "break"

automatically relieving the CPU of this task.

◐ A refined Rx initialization prevents the Receiver from starting when in

"break" state, preventing unwanted interrupts from a disconnected USART.

Refer to 8251A data sheet for more detail.

EXPERIMENT 3. 8251A INTERFACE

MDA-Win8086 MANUAL - 59 -

The 8251A and MDA-Win8086 interface is shown in figure 3-1.

FIGURE 3-1. 8251A INTERFACE

EXPERIMENT 3. 8251A INTERFACE

- 60 - MDA-Win8086 MANUAL

1. UART

If you type a keyboard of your PC, the key code that you typed will be

echo back.

⑴ Polling method

⑵ Interrupt

4-1. LCD

MDA-Win8086 MANUAL - 61 -

Experiment 4. LCD Display

4‐1.LCD

* 16 CHARACTERS × 2 LINE MODULE

1) PHYSICAL DATA

Module size 80.0W × 36.0H × 9.30D mm

Min. view area 65.6W × 13.8D mm

Character construction 5 × 7 dots

Character size 2.85W × 3.8H mm

Character Pitch 3.65 mm

Dot size 0.55W × 0.5H mm

2) Pin Connections

Pin NO. Symbol Level Function

1Vss -0V Power supply2Vdd - 5V

3VL - -

4RS H/L H : Data input

L : Instruction input

5R/W H/L H : Data read

L : Data write

6EH. HLEnable signal

7D0 H/L

Data bus line

8D1 H/L

9D2 H/L

10 D3 H/L

11 D4 H/L

12 D5 H/L

13 D6 H/L

14 D7 H/L

EXPERIMENT 4. LCD DISPLAY

- 62 - MDA-Win8086 MANUAL

3) INSTRUCTION

Instruction CODE Description

Execution

time(max)

fosc is

250 KHz

RS R/

W

D7D6D5D4D3 D2 D1D0

Clear display 0 0 0 0 0 0 0 0 0 1 Clears entire display 1.64

Return Home 0 0 00000 01*

Returns display being

shifted to original

position

1.64

Entry

Mode set 0 0 00000 1I/DS

Sets cursor move

direction and specifies

shift of display

40

Display

ON/OFF

Control

0 0 00001DCB

D : Display ON/OFF

C : Cursor ON/OFF

B : Cursor Blink/Not

40

Cursor or

Display Shift 0 0 0001S/CR/L**

Moves cursor and

Shifts display 40

Function Set 00001DLNF**Refer to Remark 40

Set CGRAM 0 0 0 1 ACG Sets CG RAM Addr. 40

Set DD

RAM Addr. 0 0 1 ADD Sets DD RAM

Address 40

Read Busy

Flag & Addr 01BF AC BF : Busy flag

Reads AC contents. 40

Write Data

CG or DD 10 Write data Writes data into DD

RAM or CG RAM 40

Read Data

from CG

or DD RAM

11 Read data Reads data from DD

RAM or CG RAM 40

Remark

I/D= 1: Increment 0: Decrement DD RAM : Display data RAM

S= 1: Accompanies display shift CG RAM : Character generator

RAM

S/C=1:Display shift. 0:cursor move

R/L=1:Shift right. 0: Shift left. ACG : CG RAM address

DL= 1 : 8bits 0 : 4 bits ADD : DD RAM address

Corresponds to cursor

address

N = 1 : 2 lines 0 : 1 lines

F = 1 : 5×10dots 0 : 5×7dots

BF = 1: Internally operating AC : Address counter used for

both DD and CG RAM

address

0: Can accept instruction

* NO EFFECT

4-1. LCD

MDA-Win8086 MANUAL - 63 -

4) INITIALIZATION SEQUENCE

POWER ON

⇓

Wait till VCC is 4.5V min

⇓

RS = 0, WRITE 38H *1 ( Execution time : 40 ㎲ )

⇓

RS = 0, WRITE 0EH ( Execution time : 40 ㎲ )

⇓

RS = 0, WRITE 08H ( Execution time : 40 ㎲ )

⇓

RS = 0, WRITE 02H ( Execution time : 1.64 ㎳ )

⇓

RS = 0, WRITE 01H ( Execution time : 1.64 ㎳ )

⇓

RS = 0, WRITE ADDR. *2 ( Execution time : 40 ㎲ )

⇓

RS = 1, WRITE DATA *3 ( Execution time : 40 ㎲ )

* 1. Should use this instruction only once in operation.

* 2. ADDR is the setting data cursor position to debug.

In data, MSB(D7) should be "1" and other 7 bits (D0～D6)

are cursor position.

* 3. DATA mean the ASCII codes.

EXPERIMENT 4. LCD DISPLAY

- 64 - MDA-Win8086 MANUAL

5) CHARACTER FONT TABLE

Upper

Lower Nible

⑴

⑵

⑶

⑷

⑸

⑹

⑺

⑻

⑴

⑵

⑶

⑷

⑸

⑹

⑺

⑻

NOTE : CGRAM is a CHARACTER GENERATOR RAM having a

storage function of character pattern which enable to change

freely by users program

4-2. LCD INTERFACE

MDA-Win8086 MANUAL - 65 -

4‐2.LCDInterface

1. Message display

Display the message like below.

Scroll the message.

EXPERIMENT 4. LCD DISPLAY

- 66 - MDA-Win8086 MANUAL

3. Scroll the message left to right

Scroll the message, "MDA-Win8086 Training Kit".

4. Display the pressed key on LCD

Display the pressed keypad on LCD

5-1. KEYBOARD INTERFACE

MDA-Win8086 MANUAL - 67 -

Experiment 5. Keyboard Interface

5‐1.KeyboardInterface

※ Position Code

Key 01234567

Code 00 01 02 03 04 05 06 07

Key 8 9 A B C D E F

Code 08 09 0A 0B 0C 0D 0E 0F

Key :STP GO REG DA AD

Code 10 11 12 13 14 15 16 17

※ Key Input Flowchart

START

AL ← ( )

Flag port ; Read Flag Status

Flag ON?

; Check Flag Bit

AL ← ( )

Keyboard ; Data In from keyboard

END

EXPERIMENT 5. KEYBOARD INTERFACE

- 68 - MDA-Win8086 MANUAL

FIGURE 5-1. KEYBOARD INTERFACE

< Sample Program 5-1. Key input subroutine >

SCAN: IN AL,KEY

TEST AL,10000000B

JNZ SCAN

;

AND AL,00011111B

MOV BX,0

MOV DS,BX

MOV BYTE PTR K_BUF,AL

; KEY CLEAR

OUT KEY,AL

; SPEAKER AND LED ON?

CALL TONE

RET

;

5-1. KEYBOARD INTERFACE

MDA-Win8086 MANUAL - 69 -

TONE: PUSH CX

PUSH AX

;

MOV AH,50

MOV AL,1

TONE2: MOV CX,200

OUT SPK,AL

TONE1: LOOP TONE1

XOR AL,1

DEC AH

JNZ TONE2

;

XOR AL,AL

OUT SPK,AL

;

POP AX

POP CX

RET

EXPERIMENT 6. D/A CONVERTER

- 70 - MDA-Win8086 MANUAL

EXPERIMENT 6. D/A CONVERTER

6‐1.D/AConverterSpecification

General Description :

The DAC0800 is a monolithic 8-Bit high-speed current output digital to

analog converter (DAC) featuring typical setting times of 100ns. When used

as a multiplying DAC monotonic performance over a 40 to 1 reference

current range is possible. The DAC0800 also features high compliance

complementary current outputs to allow differential output voltage of 20

Vpp with simple resistor loads as shown in FIGURE 6-1.

6-1. D/A CONVERTER SPECIFICATION

MDA-Win8086 MANUAL - 71 -

FIGURE 6-1. DAC0800 BLOCK DIAGRAM

FIGURE 6-2. DAC0800 BLOCK DIAGRAM

(

continue

)

EXPERIMENT 6. D/A CONVERTER

- 72 - MDA-Win8086 MANUAL

6‐2.D/AConverterInterface

6-3. D/A CONVERTER EXPERIMENT

MDA-Win8086 MANUAL - 73 -

6‐3.D/AConverterExperiment

1. DAC

※ Setup jumper cap, like following;

◉ ◉

◉ ◉ ◉◉ ◉

P8 P6

Bar LED will be increased.

EXPERIMENT 6. D/A CONVERTER

- 74 - MDA-Win8086 MANUAL

1. DA - AD

※ Setup jumper cap, like following;

◉ ◉ ◉

◉ ◉

P8 P6 DIP2

7-1. A/D CONVERTER SPECIFICATION

MDA-Win8086 MANUAL - 75 -

Experiment 7. A/D Converter

7‐1.A/DConverterSpecification

General Description :

The ADC0800 is an 8-bit monolithic A/D converter using P-channel

ion-implanted MOS technology. It contains a high input impedance

comparator 256 series resistors and analog switches control logic and output

latches. Conversion is performed using a successive approximation technique

where the unknown analog voltage is compared to the resister tie points

using analog switches. When the appropriate tie point voltage matches the

unknown voltage, conversion is complete and the digital outputs contain an

8-bit complementary binary word corresponding to the unknown. The binary

output is TRI-STATE to permit busting on common data lines.

EXPERIMENT 7. A/D CONVERTER

- 76 - MDA-Win8086 MANUAL

FIGURE 7-1. ADC0804 BLOCK DIAGRAM

7-3. A/D CONVERTER EXPERIMENT

MDA-Win8086 MANUAL - 77 -

7‐2.A/DConverterInterface

7‐3.A/DConverterExperiment

① Setting DIP2 switch on the left of ADC0804 like follow.

DIP2

② Setup jumper cap, like following;

◉ ◉

P6

EXPERIMENT 7. A/D CONVERTER

- 78 - MDA-Win8086 MANUAL

When you adjust the VR, ADC value will be displayed on the LCD

module.

8-1. STEPPING MOTOR SPECIFICATION

MDA-Win8086 MANUAL - 79 -

EXPERIMENT 8. Stepping Motor Control

8‐1.SteppingMotorSpecification

The stepping motor is a device which can transfer the incoming pulses

to stepping motion of a predetermined angular displacement. By using

suitable control circuity the angular displacement can be made proportional

to the number of pulses. Using microcomputer, one can have better control

of the angular displacement resolution and angular speed of a stepping

motor. In the past few years the stepping motor has improved in size

reduction, speed and precision. Stepping motor will have wider applications

in the future.

Stepping motors are suitable for translating digital inputs into mechanical

motion. In general, there are three types of stepping motor:

(1). VR( Variable Reluctance ) stepping motors

(2). Hybrid stepping motors

(3). PM( Permanent Magnet ) stepping motors

Table 1-4. Stepping motor characteristics comparison

Motor type

Characteristics PM VR Hybrid

Efficiency High Low High

Rotor Inertia High Low Low

Speed High High Low

Torque Fair Low High

Power O/P High Low Low

Damping Good Poor Poor

Typical

Step

Angle

1.8°

15°

30°

7.5°

15°

30°

0.18°

0.45°

EXPERIMENT 8. STEPPING MOTOR CONTROL

- 80 - MDA-Win8086 MANUAL

Figure 8-1 is used to explain the operation of simplified stepping motor

(90°/step). Here the A coil and B coil are perpendicular to each other. If

either A or B coil is excited( a condition which is known as single-phase

excitation), the rotor can be moved to 0°, 90°, 180°, 270°degree position

depending on the current's ON/OFF conditions in the coils, see FIGURE

8-1(a). If both coils have current flowing at the same time, then the rotor

positions can be 45°, 135°, 225°, 315°degrees as shown in FIGURE 8-1(b).

This is known as two-phase exception. In FIGURE 8-1(c), the excitation

alternates between 1-phase and 2-phase, then the motor will rotates

according to 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315°sequence. This is

1-2 phase excitation, each step distance is only half of step movement of

either 1-phase or 2-phase excitation.

Stepping motor can rotate in clockwise or counter-clockwise direction

depending on the current pulse sequence applied to the excitation coils of

the motor. Referring to the truth tables in FIGURE 8-1(a), (b), (c). If

signals are applied to coil A and B according to Step 1,2,3,4,5,6,7,8, then

counter-clockwise movement is achieved. And vice-versa is true. If signals

are applied according to step 8,7,6,5,4,3,2,1, then clockwise movement is

achieved.

Commercial stepping motor uses multimotor rotor, the rotor features two

bearlike PM cylinders that are turned one-half of tooth spacing. One gear

is south pole, the other gear is north pole. If a 50-tooth rotor gear is used,

the following movement sequences will proceed.

A. single-phase excitation:

The stepping position will be 0°,1.8°, 3.6°, ....... 358.2°, total 200

steps in one round.

8-1. STEPPING MOTOR SPECIFICATION

MDA-Win8086 MANUAL - 81 -

B. two-phase excitation:

The stepping positions will be 0.9°, 2.7°, 4.5°, ..... 359.1°, total 200

steps in one round.

C. single-phase and two-phase excitations combined:

The stepping positions will be 0°, 0.9°, 1.8°, 2.7°, 3.6°, 4.5°,

............... 358.2°, 359.1°, total 400 steps in one round.

ABA_B_

STEP 1 1000

20100

30010

40001

51000

60100

70010

80001

(a) 1-phase excitation

ABA_B_

STEP 1 1100

20110

30011

41001

51100

60110

70011

81001

(b) 2-phase excitation

ABA_B_

STEP 1 1000

21100

30100

40110

50010

60011

70001

81001

(c) 1-2 phase excitation

CCV CV

FIGURE 8-1. Half-step and full-step rotation

EXPERIMENT 8. STEPPING MOTOR CONTROL

- 82 - MDA-Win8086 MANUAL

Since stepping motor makes step-by-step movement and each step is

equidistant, the rotor and stator magnetic field must be synchronous. During

start-up and stopping, the two fields may not be synchronous, so it is

suggested to slowly accelerate and decelerate the stepping motor during the

start-up or stopping period.

8‐2.SteppingMotorInterface

8-2. STEPPING MOTOR INTERFACE

MDA-Win8086 MANUAL - 83 -

8‐3.SteppingMotorExperiment

Stepping motor test - 1 phase magnetization

Keypad Function

0 Left 45 degree

1 Right 45 degree

2 Left 90 degree

3 Right 90 degree

4 Left 180 degree

5 Right 180 degree

6 Left Revolution

7 Right Revolution

EXPERIMENT 8. STEPPING MOTOR CONTROL

- 84 - MDA-Win8086 MANUAL

z1 MDA-Win8086 Circuit Diagram

z2 MDA-Win8086 External Connector

z3 8086 Pin Configuration

z4 8086 Instruction Set Summary

1. MDA-Win8086 Circuit Diagram

MDA-Win8086 MANUAL - 85 -

1. MDA-Win8086 Circuit Diagram

Appendix

- 86 - MDA-Win8086 MANUAL

1. MDA-Win8086 Circuit Diagram

MDA-Win8086 MANUAL - 87 -

Appendix

- 88 - MDA-Win8086 MANUAL

1. MDA-Win8086 Circuit Diagram

MDA-Win8086 MANUAL - 89 -

Appendix

- 90 - MDA-Win8086 MANUAL

2. MDA-Win8086 External Connector

MDA-Win8086 MANUAL - 91 -

2. MDA-Win8086 External Connector

⑴ SLOT

Appendix

- 92 - MDA-Win8086 MANUAL

⑵ Extern 8255 Connector

① CON10

Address map

PORT 8255A ADDRESS

A PORT 20H

B PORT1 22H

C PORT2 24H

CONTROL REGISTER 26H

I/O Connector

(

CON10

)

Circuit Dia

g

ram

2. MDA-Win8086 External Connector

MDA-Win8086 MANUAL - 93 -

② CON3

Appendix

- 94 - MDA-Win8086 MANUAL

3. 8086 Pin Configuration

(

a

)

8086

(

b

)

8088

4. 8086 INSTRUCTION SET SUMMARY

MDA-Win8086 MANUAL - 95 -

4. 8086 Instruction Set Summary.

8086

REGISTER MODEL

AF : AUXILIARY CARRY - BCD

CF : CARRY FLAG

PF : PARITY FLAG

SF : SIGN FLAG

ZF : ZERO FLAG

DF : DIRECTION FLAG [STRINGS]

IF : INTERRUPT ENABLE FLAG

OF : OVERFLOW FLAG [DF & SF]

TF : TRAP - SINGLE STEP FLAG

Appendix

- 96 - MDA-Win8086 MANUAL

OPERAND SUMMARY

"reg" fleld bit assignments :

SECOND INSTRUCTION BYTE SUMMARY

mod xxx r/m

mod Displacement

00 DISP : 0". disp-low and disp-high are absent

01 DISP : disp-low sign-extended to 16-bits. disp-high is absent

10 DISP = disp-high ; disp-low

11 r/w is treated as a "reg" field

r/m Operand Address

000 (BX) + (SI) + DISP

011 (BX) + (DI) + DISP

010 (BP) + (SI) + DISP

011 (BP) + (DI) + DISP

100 (SI) + DISP

101 (DI) + DISP

110 (BP) + DISP

111 (BX) + DISP

DISP follows 2nd byte of instruction (before data if required)

* except if mod = 00 and r/m = 110 then EA = disp-high; disp-row

Operand address (EA) Timing (clocks):

Add 4 clocks for word operands at ODD ADDRESSES

immed offset = 6

Base(BX, BP, SI, DI) = 5

Base +DISP = 9

Base + Index (BP + DI, BX + SI) = 7

Base + Index (BP + SI, BX + DI) = 8

Base + Index (BP + DI, BX + SI) + DISP = 11

Base + Index (BP + SI, BX + DI) + DISP = 12

4. 8086 INSTRUCTION SET SUMMARY

MDA-Win8086 MANUAL - 97 -

Appendix

- 98 - MDA-Win8086 MANUAL

4. 8086 INSTRUCTION SET SUMMARY

MDA-Win8086 MANUAL - 99 -

- 100 - MDA-Win8086 MANUAL

Printed in the Korea

Tel : +82-2-2109-5964

Fax ; +82-2-2109-5968

E-mail ; info@midaseng.com

Web ; www.midaseng.com

MDA‐Win8086UserGuide

Serial No. 090601

MDA_WinIDE8086_Manual.hwp MDA Win IDE8086 Manual

Navigation menu

Versions of this User Manual:

Views

Navigation