EC- 316 MICROPROCESSORS LAB PROJECT BASED ON INTEL 8085

Size: px

Start display at page:

Download "EC- 316 MICROPROCESSORS LAB PROJECT BASED ON INTEL 8085"

Leon Bradley
6 years ago
Views:

1 EC- 316 MICROPROCESSORS LAB PROJECT BASED ON INTEL 8085 TITLE: COMPLETE THE PATTERN Submitted by: ECE-3: RAJAT SINGH (135/EC/13) RIPUDAMAN SINGH (137/EC/13)

2 PROJECT TITLE AND PARTNER DETAILS Project Title: COMPLETE THE PATTERN Student Details: The project was undertaken by: 1. RAJAT SINGH (135/EC/13) 2. RIPUDAMAN SINGH (137/EC/13).

3 SYNOPSIS A 2 player game wherein players battle it out to complete their respective LED patterns. It consists of an LED (RGB) matrix in which LEDs blink such that one LED is of an odd color for a short period of time. Players are provided with push buttons to claim their observation. Players are awarded for every correct observation and penalized for every mistimed claim. Every award contributes towards completion of respective pattern. First player to complete the pattern WINS

4 INTRODUCTION Intel 8085 was an important milestone in the development of microprocessors. It required less circuitry as compared to its contemporary counterparts. As a result, it was possible to build simpler and cheaper micro-computer systems. Intel 8085 is an ideal microprocessor for the purpose of introducing students with the vast subject of microprocessors. Since we are required to develop a project based on Intel 8085, we decided to make use of its input-output, interrupt and computational abilities. We were inspired to make a project whereby we can use all the above mentioned features of Intel 8085 and use it to create a project which is fun and enjoyable. Our project utilizes the input output facilities by taking navigation and select inputs from the user and displaying the SCORE on the LED matrix and the score updates furtherly till all the 4 scoring LED glows. Interrupt RST7.5 and RST6.5 is used by the two pushbuttons (for the users) to claim the observation. With our project, we aimed at creating something that was both valuable and fun, which not only made the learning process enjoyable, but also instilled a satisfying feeling once our project was completed.

5 PROJECT DESCRIPTION Complete the pattern is played between two players. 6x6 LED matrix will blink in a different pattern for some time and an odd color of led (RED IN OUR CASE) will glow in between for a short interval of time. The moment that led blinks one of the user has to claim his/her observation. If claimed it right than one of them will get a point in the form of a scoring led. If anyone claimed it wrong a penalty will be given in the form of glowing a scoring led of the opponent. Whoever completes his/her pattern first will win. Various components used in the project: DIFFERENT LED (RED GREEN BLUE) 2. EEPROM STANDARD PUSH BUTTONS 4. RAM MICROPROCESSOR 6. LATCH DECODER NOR GATE LC CRYSTAL 6MHz

6 BLOCK DIAGRAM

7 PROJECT PICTURES

9 PROGRAM FLOWCHART START INITIALIZATION INTERRUPT SUBROUTINE 1 MAIN: CHECK FOR INPUT INTERRUPT SUBROUTINE 2 END

10 INTERRUPT SUBROUTINE FOR PLAYER 1 START CHECK IF LSB SET OR MSB SET LEDs ARE GLOWING YES NO ODD-LED IS PRESENT NO END YES END MODIFY LOWER BITS AND SAVE MODIFY UPPER BITS AND SAVE RETURN

11 INTERRUPT SUBROUTINE FOR PLAYER 2 START CHECK IF LSB SET OR MSB SET LEDs ARE GLOWING YES NO ODD-LED IS PRESENT NO END YES END MODIFY UPPER BITS AND SAVE MODIFY LOWER BITS AND SAVE RETURN

12 SCHEMATIC

13 TESTING Testing the Circuit Board, these steps were followed during the testing process: 1. A simple assembly language program was burnt in the EEPROM to check for inputs on the SID pin and to throw the same as output on the SOD line. RIM ANI 80H ORI 40H SIM The output on the SOD pin was indicated using a red LED. The working of this program ensured smooth functioning of the 8085 and the EEPROM. 2. The output ports were checked individually to verify the decoding logic. 3. All the IC were individually tested on the IC tester in microprocessor lab.

14 Gantt chart 01-Jan 20-Feb 10-Apr 30-May 19-Jul COMPLETE THE PATTERN CHOOSE PARTNER DECIDING PROJECT GETTING APPROVED STUDY OF 8085 DATASHEET STUDY OF RAMESH GAONKAR PREPARE SCHEMATIC TESTING OF SCHEMATIC PCB LAYOUT PROGRAMMING TESTING AND IMPROVEMENT

15 CONCLUSION Complete the pattern game is working but with a minute error. This implies that both hardware and software components are functioning as expected. This project would not have been possible without the motivation and guidance from Professor Gadre. Our batch mates were also very helpful and supportive.

16 BIBILOGRAPHY GAONKAR, R. S., & GAONKAR, R. S. (1996). Microprocessor architecture, programming, and applications with the Englewood Cliffs, N.J., Prentice Hall. ISBN DATASHEETS: _datasheet.pdf

INTEL 8085 PROJECT ECE - 316

INTEL 8085 PROJECT ECE - 316 MAZE RUNNER Submitted By: Mohak Gupta (103/EC/13) Prashant (121/EC/13) ACKNOWLEDGEMENTS The whole project took a lot of planning and concept application. We managed everything