The Practice of Micro-processor

Yonam Institute of Digital Technology

03. Preparing for Practice

Overview of Board

2

1

11

10

7

5

2

9

8

4

36

MCU module

Digital I/O

7-Segment Part

4X4 Key Matrix

LCD

Printer Port

Serial Port

MCU Port Connect

Breadboard

Power Part

Power Connector / Switch

MCU Module BoardMCU Module Board

3

2

14

5

3

6

7

1, 2: MCU ATmega8535, MCU Interface Part

3: ISP Connector (On/Off)4: PLD Part5: Reset Switch6: MCU State LED7: Power Connector

CodeVision AVR Installing Using CD

Compiler & ProgrammerCompiler & Programmer

4

  

  

Connecting Board and PCConnecting Board and PC

5

1.전원 케이블연결

2.ISP 케이블연결

3.Code VisionCompiler로HEX File 전송

Using CodeVision1. Creation New Project

Testing a LED-Control ProgramTesting a LED-Control Program

6

1. 작업폴더로 이동1. 작업폴더로 이동

2. 프로젝트 이름 작성 3. 저장 버튼 클릭

2. Configuration

1. C Compiler를 클릭 1. Atmega8535 선택

2. 3.6864MHz 설정

3. After Make 클릭

1. 체크한다.

1. OK 클릭

7

3. Creation Source

1. 클릭한다.

1. 클릭한다.

8

Sample Code

#include <90s8535.h>

void main(void)

{

DDRA = 0xFF; // Port A 출력으로 설정

PORTA = 0xFF; // Port A 초기값

while(1) { // 무한루프

PORTA = 0x80; // Port A로  0x80 값 출력

}

}

9

10

Wiring Diagram

PA.0 ● ● DO.0

PA.1 ● ● DO.1

PA.2 ● ● DO.2

8535 PA.3 ● ● DO.3 Digital

PA PORT PA.4 ● ● DO.4 Output

PA.5 ● ● DO.5

PA.6 ● ● DO.6

PA.7 ● ● DO.7

PC.0 ● ● DI.0

PC.1 ● ● DI.1

PC.2 ● ● DI.2

8535 PC.3 ● ● DI.3 Digital

PC PORT PC.4 ● ● DI.4 Input

PC.5 ● ● DI.5

PC.6 ● ● DI.6

PC.7 ● ● DI.7

  

AVR8535MCU Module

Multi DigitalBreadboard

11

1. Configure 선택

1. Add 버튼 클릭

1. 소스 추가 확인

2. 컴파일 실행 3. 컴파일 실행 및

ISP 다운로드 실행

Compiling & Download

Digital Output LED: 8bit digital data output VCC(Logic ‘H’)-LED on, GND(Logic ‘L’)-LED off

Uses Hex-numeric data for LED control ex: If you insert “0xAA” to port output, the result follows

Understanding Port Output (LED Understanding Port Output (LED Control)Control)

12

N.C 0 0 0 0 0 0 0 0 N.C N.C 1 0 1 0 1 0 1 0 N.C

0 0 A A

0x00 0xAA

LED가 다음과 같이 반복되게 하시오 .

LED가 다음과 같이  1bit씩 왼쪽 /오른쪽  shift하며 점등하게 하시오 .

Practice of Port Output (LED Practice of Port Output (LED Control)Control)

13

N.C 1 0 1 0 1 0 1 0 N.C N.C 0 1 0 1 0 1 0 1 N.C

…(1)

(2) …

Practice of Port Output (LED Practice of Port Output (LED Control)Control)

LED가 다음과 같이  1bit씩 누적되어 왼쪽 /오른쪽  shift하며 점등하게 하시오 .

…(1)

(2) …

14

Digital Input DIP Switch: 8bit digital data input Turn On-GND(Logic ‘L’), Turn Off-VCC(Logic ‘H’)

Understanding Port Input (DIP Understanding Port Input (DIP Switch)Switch)

15

D7 D6 D5 D4 D3 D2 D1 D0

PC.0 ● ● DI.0

PC.1 ● ● DI.1

PC.2 ● ● DI.2

8535 PC.3 ● ● DI.3 Digital

PC PORT PC.4 ● ● DI.4 Input

PC.5 ● ● DI.5

PC.6 ● ● DI.6

PC.7 ● ● DI.7

AVR8535MCU Module

Multi DigitalBreadboard

다음과 같이  DIP 스위치의 입력을  LED로 출력하라 .

위의 프로그램을 수정하여  DIP 스위치 입력을 반전하여  LED로 출력하라 .

Practice of Port Input (DIP Switch)Practice of Port Input (DIP Switch)

16

DIP 스위치의  D0의 상태가  On일 때  LED가 ‘ 0xAA’와 ‘ 0x55’를 반복하게 하라 .

DIP 스위치의  D1의 상태가  On일 때  LED가 왼쪽  shift하게 하라 .

DIP 스위치의  D2의 상태가  On일 때  LED가 오른쪽  shift하게 하라 .

DIP 스위치의  D3의 상태가  On일 때  LED가 왼쪽 누적  shift하게 하라 .

DIP 스위치의  D4의 상태가  On일 때  LED가 오른쪽 누적  shift하게 하라 .

Advanced PracticeAdvanced Practice

17