ENEX 2001 Assignment

ENEX 20001 2018 /T2

Assignment 2 Hardware Tasks Due date: Friday of Week 7(31st Aug 2018), 23:55hrs.

ASSESSMENT Weighting: 20% of unit final mark

2 Length:

Submission

N/A

Online as a single word file

Note: All programs should associate with appropriate flowcharts and comments, marks will be given to the explanations of your algorithms and program. You can attach screenshots of running program as well. All these questions are based on the CQU PIC Development kit. You should use CQU_LCD_Ver2.h or CQU_LCDVer3.h without any modification to them. Your own header files for the LCD display are not allowed for this assessment.

All answers should be developed in MCC18 C compiler under MPLAB X. No Assembly language sub routings are allowed.

Q1. (20marks) (a) Write a program to turn the LEDs ON in the following sequence D3D4D5D6 and

then turn them OFF in the following sequence D6D5D4D3. This should loop infinitely. You should incorporate appropriate delay to make sure that it runs smoothly and a human eye can clearly see it.

(b) Write a program to run a DC motor connected to pins 1A and 1B in CW direction and reverse it when SW2 is pressed.

Q2. (20marks) Write a program to display (on 7-segment) continuous up-counting numbers from 00 to 25 and then down-counting from 25 to 00 (in decimal system). There should be a sufficient dely between two number display status where a human can read them. This should loop infinitely.

Q3. (30marks) Write a program to read analog input from RA1 when SW5 is pressed and display the following messages on the LCD panel. “input is <= 2V” , “input is < =4V & > 2V”, “input is > 4V” depending on the actual real-time analog input. (if the message goes over the first row display area, it should display on second line) (To testing your program : Use a 10kΩ potentiometer in the following configuration to provide the analog input. Use any of the GND pins in P2 as ground connection and the single female scocket next to PICkit3 connector as +5V and connect the mid pin of pot to RA1.)

Q4. (30marks)

Write a program to display whatever you type on your computer key board(through TeraTerm) on the LCD display and display the message “Hellow from CQU PIC Development Board” on TeraTerm terminal emulator on your Windows computer when you press switch S2. (you need to connect your PIC development board to your computer via USB to serial cable and configure TeraTerm appropriately for this. Use baud rate of 4800bps)

( 100% of marks is equal to 20% of unit total) Assessment criteria: This assignment is based on C language programming skills and PIC18F4321 programming skills. To obtain full marks students must provide all in detail problem solving and solution development evidences. Each student must have their unique programs developed by themselves. Answer to every problem should include a flowchart / NS-diagram or other similar graphical representation of the solution. You are welcome to include screen shots/clear photos of running programs. You need to include the complete code for every question. A clean working program as the answer to a question without evidence of development of it (ex: a soft copy of workbook pages relevant to it) will receive a maximum of 50% of the allocated marks for that question. Submission instructions: Develop your program to solve the problem in each question. When they run successfully, copy the entire program to your answer script in MS WORD. Then close your project and open a new project. Copy your listing from the answer script(WORD document) and paste it into the new project’s main c file. Build the project and run it to check whether it runs smoothly. If it does not run now, it will not run on marker’s computer as that is what the marker does. ( Hint: When you first copy from project to WORD document, WORD may auto correct some spelling, capitalize initial words, etc. which will prevent your answer from running successfully in the marker’s computer when copy and pasted into a new project. The above exercise will highlight you if there are any such things done by WORD Auto correct feature and you are on can correct them before submitting. The marker will not try to correct them and any submitted program with compilation errors will receive very low marks)

GND +5V Analog input

GND +5V Analog input