CE3411 MICROPROCESSOR SYSTEMS LAB

Kingdom of Saudi Arabia

Ministry of Education Prince Sattam Bin Abdulaziz University College of Computer Engineering & Sciences

Department of Computer Engineering

اململكة العربية الصعودية

وزارة التعليم

جامعة األمري شطام بن عبدالعسيس

م احلاشبكلية هندشة وعلو

قصم هندشة احلاشب

Laboratory Safety :

Please read these Safety Guidelines, Safety is a priority at Prince Sattam Bin Abdulaziz

University .While it may seem unlikely that an accident could happen to you, you

should know the accident rate in universities is 10 to 100 times greater than in the

chemical industry. To help prevent accidents, safety notes are included in the lab

manual. In addition, any relevant Material Safety Data Sheets (MSDS) are posted in a

laboratory binder and guidelines.

Pay close attention to this information – our goals are:

1. To avoid accidents in the lab, and

2. To respond promptly and appropriately should an accident occur.

Safety depends on you!

It is your responsibility to follow the instructions in the

lab manual and any additional guidelines provided by

your instructor. It is also your responsibility to be

familiar with the location and operation of safety

equipment.

General Laboratory Safety Guidelines

• Wear appropriate protective clothing. Do not wear open-toed shoes, sandals, shorts

or shirts with dangling sleeves. Tie back long hair and avoid dangling jewelry.

• Clean your workstation after each lab period, and return all equipment and

materials to appropriate stations before leaving the lab.

• Always turn off the power before working on any electric circuit or electronic device.

• When operating with electric circuits and electronic devices other than just a

computer, you must work in pairs or teams.

• When in doubt about the operation of any circuit or device in lab, always have an

instructor check your work before connecting power to your system.

• Report any safety issues or violations that you are aware of as soon as possible to

your course instructor and program director.

• Ensure that you have a safe buffer area around you and that you are working on

an appropriate surface when using soldering irons in the lab.

• Always make sure that all lab equipment, soldering irons, project circuits are

powered down before leaving your lab area.

• Ensure that your work environment is clear and free of debris before starting your

work AND after finishing your project.

• Never block walkways in the laboratory with lab equipment, cables, and electrical

power cords.

• Do not eat, drink, smoke, or apply cosmetics in the laboratory.

• Avoid all horseplay in the laboratory.

• Dispose of sharps waste properly — place broken glass in the glass discard container,

metal in the metal waste container, and place other waste materials in the designated

container(s). Secure all sharps, including needles, blades, probes, knives, etc.

TABLE OF CONTENTS

Experiments

1.

MDA -8086 SYSTEM CONFIGURATION

2.

OPERARTION INTRODUCTION

3.

SERIAL MONITOR

4.

SERIAL MOINTOR COMMAND

5.

8255A INTERFACE (LED)

6.

8255A INTERFACE (7-SEGMENT)

7.

DOT MATRIX LED

8.

LCD DISPLAY

9.

Digital to Analog Conversion

10.

Analog to Digital Conversion

11.

8086 Emulator

Appendix

EXPERIMENT No.1

MDA -8086 SYSTEM CONFIGURATION

Objective:

To get familiar with the MDA-8086 kit and it components functions.

Equipment:

MDA-8086 kit.

Introduction:

MDA-8086 is kit having microprocessor and various other components for the detailed

understanding of 8086 microprocessor.

Components and Its Functions:

1-CPU (Central processing unit): Using Intel 8086, Using 4.9152 MHz

2-ROM (Read Only Memory):

It has program to control user's key inputs.

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

Range o f ROM Address is F0000～FFFFFH.

3- SRAM (Static Random Access Memory):

Input user's program & data. Address of memory is 00000H～0FFFFH, totally 64K Byte.

4-DISPLAY:

It is LCD, 16(Character r) ×2(Line).

5- KEY BOARD: It is used to input machine language and has 16 of hexa-decimal keys and 8 of function

keys.

6- SPEAKER: Able to test so und using with speaker and further more able to test synthesizer.

7-RS-232C: It is ready to do data communication with IBM compatible personal computer.

8-DOT MATRIX LED: To understand & test of dot matrix structure and principle of display it is interfaced to

8255A (PPI).

9- A /D CONVERTER:

Convert analog signal to digital signal using with AD C0804.

10- D /A CONVERTER: Convert digital signal to analog signal using with D A C0800 and it is interfaced so as to

more Level meter.

11- STEPPING MOTOR INTERFACE:

So as to control stepping mo to r drive r circuit of stepping motor is interfaced.

12-POWER:

A C 110～220V, D C +5V 3A, +12V 1A, -12V 0.5A SMPS.

Memory Map:

Address Memory Description

00000H ~ 0FFFFH RAM PROGRAM & DATA MEMORY

F0000H ~ FFFFFH ROM MONITOR ROM

10000H ~ EFFFFH USER'S RANGE

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 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

EXPERIMENT No.2

OPERARTION INTRODUCTION

Objective:

To get familiar with the MDA-8086 kit:

1-Function of Keys

2-Basic Operation

Equipment:

MDA-8086 kit.

Introduction:

Detailed knowledge of kind and function of keys and it basic operations.

1-KIND & FUNCTION OF KEYS:

MDA-8086 has high performance 64K-byte monitor program. It is designed

for easy function. After power is on, the monitor 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.

2-BASIC OPERATIONS:

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

Whenever RES is pressed, the display becomes FIGURE 1-1 and user can operate

keyboard only in this situation.

Quiz:

Q: Write the names of functions keys available on your kit (MDA 8086)

EXPERIMENT No.3

SERIAL MONITOR

Objective:

To get familiar how MDA-8086 kit can be connected to computer and do different

operations.

Equipment:

MDA-8086 kit and a PC having Intel microprocessor and WinnComm installed on PC.

Introduction:

Serial monitor is the basic monitor program to do data communicate between MDA-8086

and computer.

1. How to use serial monitor?

So as to use serial monitor, move jumper P1 which located on the PCB like

this.

2. HOW TO CONNET MDA-8086 TO YOUR PC:

The MDA-8086 is connected serially through COM port of PC and in the following way:

The connector of computer RS-232C is 9 pin and RS-232C of MDA-8086 is 9 pin, must

be connected

3. MDA-8086 INSTALLATION:

The MDA-8086 is installed by connecting it to PC having Intel microprocessor and these

two will be connected by third party software WinnComm.

4. SETUP THE CONFIGURATION OF “WinnComm”:

The data communication between MDA-8086 and computer, need fixing initial of

COMM. When you push F5 key, following is displayed and the step of fixing initial is

like

follow

When on a power-up, following message will be displayed. This message is displayed

only when on a power-up, and does not display when press RESET key

5. ASSEMBLING/COMPILING THE SOURCE CODE:

For assembling or compiling the source code first open the related source code and

assemble or compile it according to either it is in assembly or in C language.

So for assembly click on the ASM 8086 and for C click on C 8086 this will ABS

(absolute file).

6. DWONDLOAD AND EXECUTE THE SOURCE FILE:

When the ABS file is generated the press ‘L’ for the program to download and then press

F3 to send the file for execution and lastly press ’G’ to execute and display the

result.

Quiz:

Q:Which program is used fo serial communication between MDA8086 kit and your

system?

EXPERIMENT No.4

SERIAL MOINTOR COMMAND

Objective:

Knowledge of basic commands for memory modification and displays the modifications.

Equipment:

MDA-8086 kit and a PC having Intel microprocessor and WinnComm installed on PC.

Introduction:

These commands are to modify the memory elements and movement of blocks from one

address o another memory address.

1. MEMORY MODIFY COMMAND

2. MEMROY DISPLAY COMMAND:

3. FILL DATA IN MEMORY:

4. BLOCK MOVE COMMAND:

The M command is used to move blocks of memory from one area to another.

5. DISPLAY REGISTER COMMAND:

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

6. TRACE COMMAND:

Executes instructions, one at a time, beginning at the location pointed to by the program

counter. After execution of each instruction, the processor registers are displayed

Quiz:

Q1: Which command is used for copying data from one memory location to another?

Q2: Which command is used to modify the memory elements ?

Q3: Which command is used to display the 8086 processor registers

EXPERIMENT No.5

8255A INTERFACE (LED)

Objective:

Glow of LEDS on the MDA-8086 kit using port B of PPI 8255.

Equipment:

PC having Intel microprocessor, MDA-8086 kit using WinnComm.

Introduction:

8255 is a programmable peripheral interface. It is compatible to Intel and other

microprocessors. It has 3 I/O ports named as port A, B, C and has 24 pins for I/O that are

programmable in group of 12 pins, has groups that operate in three distinct modes of

operation.

Interfacing of 8255A with 8086:

Quiz:

LED Glow Diagonally:

There are four leds on the kit which are connected to the port B (PB0-PB3) of 8255.

Write a code to make leds glow diagonally

EXPERIMENT No.6

8255A INTERFACE (7-SEGMENT)

Objective:

To get familiar with the seven segment display and its interfacing with 8086

microprocessor using 8255A.

Equipment:

PC having Intel microprocessor, MDA-8086 kit using WinnComm.

Introduction:

Seven segment is a display which may be either common anode or common cathode.

Which is ON either on 1 or zero but here we use the format ‘ON’ on zero (active low).

.

Interfacing of Seven segment with 8086 and 8255A:

Quiz :

Write a code to display hexadecimal numbers from 0 to F.

EXPERIMENT No.7

DOT MATRIX LED

Objective:

To get familiar with dot matrix leds and their connections.

Equipment:

PC having Intel microprocessor, MDA-8086 kit using WinnComm.

1-DOT-MATRIX LED DISPLAY:

Introduction:

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. The dot matrix LEDs are active low.

Internal Circuit Diagram:

2-DOT-MATRIX LED INTERFACE:

Quiz:

1) Write a code to display letter “E” on dot matrix using red leds.

2) Write a code to display “KSA” on dot matrix using green leds.

3) Write a code to display a star on dot matrix.

EXPERIMENT No.8

LCD DISPLAY

Objective:

To get familiar with LCD its pin configuration, internal architecture and its interface with

PPI 8255A.

Equipment:

PC having Intel microprocessor, MDA-8086 kit using WinnComm.

1-LCD:

16 CHARACTERS × 2 LINE MODULES

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

INSTRUCTIONS:

LCD INTERFACE:

The interface of LCD with 8255A is shown in the figure.

Quiz:

1) Write a code for displaying a sentence character by character.

2) Write a code of displaying your name and shifting towards right

3) Write a code of displaying your name and make the display on and off

EXPERIMENT No.9

Digital to Analog Conversion

Objective:

To get familiar with Digital to analog conversion

Equipment:

PC having Intel microprocessor, MDA 8086 kit

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.

Fig1:DAC0800 Block Diagram

D/A Converter Interface:

D/A Converter Experiment:

Setup jumper cap, like following;

Lab Task: When you send the Digital data to DAC then analog voltage will be

displayed on the LED Bar.

EXPERIMENT No.10

Analog to Digital conversion

Objective:

To get familiar with Analog to Digital conversion

Equipment:

PC having Intel microprocessor, MDA 8086 kit

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 bussing on common data lines.

ADC Interface:

A/D Converter Experiment:

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

② Setup jumper cap, like following;

Lab Task: When you adjust the analog switches, ADC value will be displayed on the

LCD module.

EXPERIMENT No.11

8086 Emulator

Objective:

To get familiar with 8086 Emulator

Equipment:

PC having Intel microprocessor

Introduction:

This software is used for assembly programming.

Open the Emulator8086 from start menu.

Select new tab

Select option one and press ok.

Write your code in the highlighted area.

Compile your code.

Click on save.

Click on run button.

Following window will appear.

Single step run button execute the code in step wise and shows the the values of registers.

Run button execute the program at once Load button use the load the program .

Reload is used to load again your program.

Lab Task#1:Write code to enter two numbers from the key board ,add them ,store their

result in AX and show the result on screen.

Lab Task#2: Write code to compare between two numbers and print the smallest on the

screen

Appendix

o 8086 Pin Configuration

o 8086 Register Model