nih program pengguna Keypad sederhana.. semoga membantu..
/*****************************************************
This program was produced by the
CodeWizardAVR V1.24.7d Evaluation
Automatic Program Generator
© Copyright 1998-2005 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.come-mail:
[email protected]Project : Eki Punya
Version :
Date : 6/10/2010
Author : Freeware, for evaluation and non-commercial use only
Company : Teknik Elektro (Teknik Komputer)
Comments:
Chip type : ATmega8535L
Program type : Application
Clock frequency : 11.059200 MHz
Memory model : Small
External SRAM size : 0
Data Stack size : 128
*****************************************************/
#include <mega8535.h>
#include <stdio.h>
#include <delay.h>
// Alphanumeric LCD Module functions
#asm
.equ __lcd_port=0x1B ;PORTA
#endasm
#include <lcd.h>
// Declare your global variables here
unsigned char key,temp;
bit keystatus;
void Check_Keys()
{
keystatus=0;
PORTB=0b11101111;
delay_ms(20);
DDRB=0xF0;
//key=PINB;
temp=PINB;
temp=temp&0x0F;
switch (temp)
{
case 0b00001110: key=0x01; keystatus=1; break;
case 0b00001101: key=0x04; keystatus=1; break;
case 0b00001011: key=0x07; keystatus=1; break;
case 0b00000111: key=0x0A; keystatus=1; break;
};
PORTB=0b11011111;
delay_ms(20);
DDRB=0xF0;
//key=PINB;
temp=PINB;
temp=temp&0x0F;
switch (temp)
{
case 0b00001110: key=0x02; keystatus=1; break;
case 0b00001101: key=0x05; keystatus=1; break;
case 0b00001011: key=0x08; keystatus=1; break;
case 0b00000111: key=0x00; keystatus=1; break;
};
PORTB=0b10111111;
delay_ms(20);
DDRB=0xF0;
//key=PINB;
temp=PINB;
temp=temp&0x0F;
switch (temp)
{
case 0b00001110: key=0x03; keystatus=1; break;
case 0b00001101: key=0x06; keystatus=1; break;
case 0b00001011: key=0x09; keystatus=1; break;
case 0b00000111: key=0x0B; keystatus=1; break;
};
PORTB=0b01111111;
delay_ms(20);
DDRB=0xF0;
//key=PINB;
temp=PINB;
temp=temp&0x0F;
switch (temp)
{
case 0b00001110: key=0x0C; keystatus=1; break;
case 0b00001101: key=0x0D; keystatus=1; break;
case 0b00001011: key=0x0E; keystatus=1; break;
case 0b00000111: key=0x0F; keystatus=1; break;
};
}
void get_keys()
{
while(keystatus==0)
{
Check_Keys();
}
}
void wait_key_release()
{
while(keystatus==1)
{
Check_Keys();
}
}
void main(void)
{
// Declare your local variables here
// Input/Output Ports initialization
// Port A initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTA=0x00;
DDRA=0x00;
// Port B initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTB=0x00;
DDRB=0x00;
// Port C initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTC=0x00;
DDRC=0x00;
// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTD=0x00;
DDRD=0x00;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=FFh
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer 1 Stopped
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer 2 Stopped
// Mode: Normal top=FFh
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
MCUCR=0x00;
MCUCSR=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// LCD module initialization
lcd_init(16);
while (1)
{
// Place your code here
lcd_clear();
lcd_gotoxy(0,0);
lcd_putsf("MENU:");
lcd_gotoxy(0,1);
lcd_putsf("1.Run 2.Stop");
get_keys();
wait_key_release();
if (key==0x01)
{
get_keys();
wait_key_release();
if (key==0x0B)
{
lcd_clear();
do
{
lcd_gotoxy(0,0);
lcd_putsf("MACHINE IS");
lcd_gotoxy(0,1);
lcd_putsf("RUNNING");
get_keys();
wait_key_release();
}
while(key!=0x0D);
}
}
if (key==0x02)
{
get_keys();
wait_key_release();
if (key==0x0B)
{
lcd_clear();
do
{
lcd_gotoxy(0,0);
lcd_putsf("MACHINE");
lcd_gotoxy(0,1);
lcd_putsf("SHUTDOWN");
get_keys();
wait_key_release();
}
while(key!=0x0D);
}
}
};
}
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