Soalan PRA MySkills 2013 -Release Publis

7/27/2019 Soalan PRA MySkills 2013 -Release Publis

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Pertandingan Myskills Ke-7

1

PERTANDINGAN MySkills2013

(ELECTRONICS)

6 JAM

PERINGKAT PRA-KELAYAKAN

NAMA: __________________________________________

NO. KP:__________________________________________

JABATAN PEMBANGUNAN KEMAHIRANKEMENTERIAN SUMBER MANUSIA


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Project : Heater Display Input Panel

Time Limit: 6 hrs

This project accesses each competitor to design, assemble, write an embedded

C code and test project.

Project Description:

In this project, three (3) switches were provided for user preference. If the correctselection is made by pressing any of the push button, the selected option will bedisplayed on the first row of the LCD. This is done by centered displaying thestring represents the selection made such HOT for HOT selection. Buzzer is activated two (2) times at the end of selection. In the case of more than one (1)button were pressed, the string ERROR will be centered displaying on thesecond row of the LCD; buzzer beeps for three (3) times.

Figure 1 (Block Diagram)


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Pertandingan Myskills Ke-7

3

X1

16MHz

C527p

C427p

+5v

C7100nF

C6100nF

+5v

R810k

RA0/AN02

RA1/AN13

RA2/AN2/VREF-/CVREF4

RA3/AN3/VREF+5

RA4/T0CKI/C1OUT/RCV6

RA5/AN4/SS/LVDIN/C2OUT7

RA6/OSC2/CLKO14

OSC1/CLKI13

RB0/AN12/INT0/FLT0/SDI/SDA33

RB1/AN10/INT1/SCK/SCL34

RB2/AN8/INT2/VMO35

RB3/AN9/CCP2/VPO36

RB4/AN11/KBI0/CSSPP37

RB5/KBI1/PGM38RB6/KBI2/PGC

39

RB7/KBI3/PGD40

RC0/T1OSO/T1CKI15

RC1/T1OSI/CCP2/UOE16

RC2/CCP1/P1A17

VUSB18

RC4/D-/VM23

RC5/D+/VP24

RC6/TX/CK25

RC7/RX/DT/SDO26

RD0/SPP019

RD1/SPP120

RD2/SPP221

RD3/SPP322

RD4/SPP427

RD5/SPP5/P1B 28RD6/SPP6/P1C

29

RD7/SPP7/P1D30

RE0/AN5/CK1SPP8

RE1/AN6/CK2SPP9

RE2/AN7/OESPP10

RE3/MCLR/VPP1

U1

PIC18F4550

MCLR

MCLR

OSC1

OSC2

OSC2OSC1

VUSB

C8220n

1 2 3 4 5 6

J166226-006

MCLR

+5V

PGD

PGC

IO8IO9

IO10IO11IO12

IO13IO14IO15PGMPGCPGD

ANA0ANA1ANA2ANA3T0CKIANA4

IO0IO1IO2IO3IO4

IO5IO6IO7

PWM1PWM0

TX/RC6RX/RC7SDOSDA

SCL

SS

PICKIT3

IO16IO17IO18

VI1

VO3

GND

2

U27805

C925v/22uF

C1025V/22uF

D2

1N4001

+12v

+12v

0v

+5V

C1125V/22uF

Coupling formicrocontroller

T1CKI

R9680R

MCLR

D7

14

D6

13

D5

12

D4

11

D3

10

D2

9

D1

8

D0

7

E

6

RW

5

RS

4

VSS

1

VDD

2

VEE

3

LCD1LM016L

+5v IO

IO1

IO2

IO0

IO4

IO5

IO6

IO7

VEE

+5v IO

pin15(lcd

)

pin16(lcd

)

R1033R

+5v IO

VEE

Figure 2

Schematic Diagram


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Pertandingan MySkills Ke-7

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Marking scheme:

Item Description Weight Score

1 Design circuit 30%2 Functionality 40%

3 Component assembly 10%

4 Soldering quality 10%

5 Wiring/jumper quality 10%

Parts List (Table 1)

ITEM PARTS NAME AND VALUE QTY REFERENCE NUMBER

1 RESISTORS CORBON TYPE 1/4W 5%

33R

120R

200R

390R

680R

1K

10K

12K

20K

Trim pot preset 10K PCB type

333332133

1

2 CAPACITORS

10uF 25v (Electrolytic)

22uF 25v (Electrolytic)

10nF

100nF (ceramic)

220nF (ceramic)

27pF (ceramic)

432512

3 SEMICONDUCTOR COMPONENTS

PIC 18F4550 c/w socket

Voltage regulator 7805 c/w heatsink

Transistor 2N3904 Transistor 2N3903

Diode IN4001

Diode IN4008

Diode IN914

11

11111

4 OTHERS

Strip board 25cm x 11cm

LCD LM016L

Crystal 16MHz

211


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5

6 pin PCB Header 45 degree bend

Buzzer 12Vdc PCB type

Normaly Open PCB Miniture Push ButtonSwitch

16 Pin Female Header

16 Pin Male Header

Microchip PIC Kit 3 downloader

114

111

The competitor needs to prepare the following equipments, machinery,installations and materials.

Item Qty Material Description Notes

1 1 Soldering Iron and equipment

2 1 Soldering Iron Stand

3 1 Solder wick or Solder Remover

4 1 Brush

5 1 Pincer

6 1 Nipper

7 1 Wire Stripper

8 1 Scissors

9 1 Tweezers

10 1 IC pick

11 1 PCB stand

12 1 Parts box

13 1 Precise screwdriver For trimmerresistor

14 1 Screw driver + type

15 1 Screw driver - type

16 1 Spanner

17 1 Safety Glasses


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Filename: main file.c

Filename: header file 1.h

#include "header file 1.h" // include files#include "header file 2.h" // definitions, global variables and function prototypes

void main(void){

unsigned char i,count;ADCON1= 0b001111; // Digital I/OCMCON = 0b00000111; // off comparator pg 234TRIS_PB1=1; // setting Push Button as input and PWM as outputTRIS_PB2=1;TRIS_PB3=1;TRIS_PWM0=0;PWM0=0;

Initialize_LCD(); // Must be called prior to usage of LCD

send_control(0x82);putr_lcd("Given Codes");

send_control(0xc3);putr_lcd("PKM 2013");

while(1){}// while

} //Main/* ---------------------End of File --------------------------*/

#include

#include #include #include #include #include "lcd 2x16 COM2013.c"

#pragma config FOSC = HSPLL_HS // HS oscillator, PLL enabled (HSPLL)#pragma config PLLDIV = 4 // Divide by 4 (16 MHz oscillator input)#pragma config CPUDIV = OSC4_PLL6 // [Primary Oscillator Src: /4][96 MHz PLL Src: /6]#pragma config USBDIV = 2 // USB clock comes from 96 MHz PLL output / 2#pragma config FCMEN = OFF // Disable Fail-Safe Clock Monitor#pragma config IESO = OFF // Disable Oscillator Switchover mode#pragma config PWRT = OFF // Disable Power-up timer#pragma config BOR = OFF // Disable Brown-out reset#pragma config VREGEN = ON // Use internal USB 3.3V voltage regulator#pragma config WDT = OFF // Disable Watchdog timer

#pragma config MCLRE = ON // Enable MCLR Enable#pragma config LVP = OFF // Disable low voltage ICSP#pragma config ICPRT = OFF // Disable dedicated programming port (44-pin devices)#pragma config CP0 = OFF // Disable code protection/* ---------------------End of File --------------------------*/


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Filename: header file 2.h

Filename: lcd 2 x 16 COM3013.c

/*Filename: lcd 2x16 COM2013.cDate: 20/12/2012Author: Myskills JPK

Revision: 1Depedency: lcd 2x16 COM2013.h*/

#include "lcd 2x16 COM2013.h"//continue

#define PB1 PORTBbits.RB2#define PB2 PORTBbits.RB3#define PB3 PORTBbits.RB4#define PWM0 PORTCbits.RC2#define TRIS_PB1 TRISBbits.TRISB2

#define TRIS_PB2 TRISBbits.TRISB3#define TRIS_PB3 TRISBbits.TRISB4#define TRIS_PWM0 TRISCbits.TRISC2

unsigned char x, y;

/*This function delay the system for the duration determines by i and system clock while checking RB2-RB5, if RB3-RB5 different to previous RB3-RB5, the function terminated by returning 1*/unsigned short char delay_jab(void){

unsigned char i;for(i=0; i>2&0B0111;

if (x!=y) return 1;Delay10KTCYx(1);

}

return 0;}/* To use pins RC4 and RC5 as digitalinputs, the USB module must be disabled(UCON = 0) and the on-chipUSB transceiver must be disabled(UCFG = 1


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//continuation

/*Provide 18 instruction cycles for LCD internal delay*/void DelayFor18TCY( void ){ unsigned char i;

for (i=0; i


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//continuation

void Four_bit_only (char x){while(check_busy());LCD_DATA_TRIS &= 0x0f; // Set data line as outputLCD_DATA &= 0x0f; // clear previous higher nibble on data lineLCD_DATA |= (x & 0xf0); // put higher nibble

LCD_RS = 0; // Logic 0LCD_RW = 0; // Logic 0DelayFor18TCY();LCD_E = 1; // pull high clockDelayFor18TCY();LCD_E = 0; // pull down clockDelayFor18TCY();

}

void send_data(char x){while(check_busy());

LCD_DATA_TRIS &= 0x0f; // Set data line as outputLCD_DATA &= 0x0f; // clear previous higher nibble on data line

LCD_DATA |= x & 0xf0; // put higher nibble

LCD_RS = 1; // Logic 1LCD_RW = 0; // Logic 0

DelayFor18TCY();LCD_E = 1; // pull high clockDelayFor18TCY();LCD_E = 0; // pull down clockDelayFor18TCY();

LCD_DATA &= 0x0f; // clear previous higher nibble on data lineLCD_DATA |= ((x4) &0x0f;LCD_E = 0; // pull down clockreturn x;}

//Continue


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Filename: lcd 2 x 16 COM3013.h

//continuation

/* Print the string from the buffer pointed by pointer*/void puts_lcd(char *pointer){

while(*pointer){ // print till null encounteredsend_data(*pointer);

pointer++;}

}

void putr_lcd(const rom char *pointer){while(*pointer){ // WHILE NOT NULL CHARACTER

send_data(*pointer);pointer++;}

}

void Initialize_LCD(void){LCD_DATA_TRIS = 0b00000000; // Set all lines as outputLCD_E = 0; // Logic 0LCD_RS = 0; // Logic 0

LCD_RW = 0; // Logic 0Delay1KTCYx(250); // 15msFour_bit_only(0b00100000); // (1)1st Function Set - 4-bit (entry 1 T12)send_control(0b00101000); // (2)2nd Function Set - 4-bit, 2 lines, 5X7 (entry 6 T6)send_control(0b00001110 ); // (3)Display & cursor on/off (entry 4 T6)send_control(0b00000110); // (4)Entry mode - inc addr, no shift (entry 3 T6)}

/*---------------------End of lcd 2 x 16 COM2013.c --------------------------------------------*/

/*Filename: lcd 2x16 COM2013.hDate: 20/12/2012Author: Myskills JPK

Revision: 1Depedency: delay.h

This free 2 x 16 LCD driver are provided as is without any guarantees or warranty.

Although the author has attempted to find and correct any bugs in thecodes, the author is not responsible for any damageor losses of any kind caused by the use or misuse of the codes.

The author is under no obligation to provide support, service, corrections,or upgrades to the programs.

*/

/* definitions of PINs connected to 2 x 16 LCD*/#define LCD_DATA PORTD#define LCD_DATA_TRIS TRISD#define LCD_E PORTDbits.RD0 // EN signal for LCD#define TRIS_LCD_E TRISDbits.TRISD0#define LCD_RS PORTDbits.RD2 // RS signal for LCD#define TRIS_LCD_RS TRISDbits.TRISD2#define LCD_RW PORTDbits.RD1 // RW signal for LCD#define TRIS_LCD_RW TRISDbits.TRISD1

//continue


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//continuation

void DelayFor18TCY( void );/*Provides 18 instruction cycles for LCD internal delay*/

unsigned char check_busy(void);/* Checks busy flag which is b7 of the LCD lines.It returns 1 on busy or 0 on not busy. It could be calledas:

while(check_busy()); // wait here till not busy*/

void send_control(char CMD);/* Sends command (RS=0 and RW =0) to LCD.Returns: NoneExample used:

send_control(x);where x is any character that define as LCD command

For detail please refer to HD44780U (LCD-II) - page 199*/

void Four_bit_only(char CMD);/* Sends only the higher nibble of the given character.Returns: NoneExample used:

Four_bit_only(x:y);

sends x only to LCD*/

void send_data(char x);/* Sends data (RS=1 and RW =0) to LCD.Returns: NoneExample used:

send_data(x);where x is any character to be displayed on the LCD

For detail please refer to HD44780U (LCD-II) - page 199*/

char read_data(void);/* Reads data (RS=1 and RW =1) from the set address.Returns: Character whuch is pointed by the CURSORExample used:

x = read_data();Note:

x must be defined as character*/

void puts_lcd(char *pointer);/* Prints the string from the buffer pointed by pointer.The string can be defined on the program RAM/register aschar array1[]="Just testing";

Returns: NoneExample used:

puts_lcd(array1);*/

void putr_lcd(const rom char *pointer);/* Prints the string from the buffer pointed by pointer.The string can be defined on the program ROM aschar const rom array1[]="Just testing";

Returns: NoneExample used:

1. putr_lcd(array1);2. putr_lcd("ASC 2012);

*/

void Initialize_LCD(void);/*Initializes the LCD and must be called once by the main function.For detail please refer to HD44780U (LCD-II) - page 207*/

/*---------------------End of lcd 2 x 16 COM2013.h --------------------------------------------*/

Soalan PRA MySkills 2013 -Release Publis

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