#include <mega16.h>
#include <delay.h>
// Alphanumeric LCD Module functions
#include <alcd.h>
#include <stdio.h>
char key=00;
char s_key[];
char i=0;
char a=0;
char b=0;
char c=0;
int num=0;
// Declare your global variables here
void main(void)
{
// Declare your local variables here
// Input/Output Ports initialization
// Port A initialization
// Func7=In Func6=In Func5=In Func4=In Func3=Out Func2=Out Func1=Out Func0=Out
// State7=T State6=T State5=T State4=T State3=0 State2=0 State1=0 State0=0
PORTA=0x00;
DDRA=0xFF;
// 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=0xFF
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFFFF
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 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: Timer2 Stopped
// Mode: Normal top=0xFF
// 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;
// USART initialization
// USART disabled
UCSRB=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// ADC initialization
// ADC disabled
ADCSRA=0x00;
// SPI initialization
// SPI disabled
SPCR=0x00;
// TWI initialization
// TWI disabled
TWCR=0x00;
// Alphanumeric LCD initialization
// Connections specified in the
// Project|Configure|C Compiler|Libraries|Alphanumeric LCD menu:
// RS - PORTC Bit 5
// RD - PORTC Bit 4
// EN - PORTC Bit 3
// D4 - PORTC Bit 2
// D5 - PORTC Bit 1
// D6 - PORTC Bit 0
// D7 - PORTD Bit 7
// Characters/line: 16
lcd_init(16);
while (1)
{
PORTB=0xff;
PORTA=0b11111110;
if(PINB.3==0){
key=1;
i++;}
if(PINB.1==0){
key=2;
i++;}
if(PINB.2==0){
key=3;
i++;}
delay_ms(5);
//*********************************
PORTA=0b11111101;
if(PINB.3==0){
key=4;
i++;}
if(PINB.1==0){
key=5;
i++;}
if(PINB.2==0){
key=6;
i++;}
delay_ms(5);
//*********************************
PORTA=0b11111011;
if(PINB.3==0){
key=7;
i++;}
if(PINB.1==0){
key=8;
i++;}
if(PINB.2==0){
key=9;
i++;}
delay_ms(5);
//*********************************
PORTA=0b11110111;
if(PINB.3==0){
key=10;
i++;}
if(PINB.1==0){
key=0;
i++;}
if(PINB.2==0){
key=11;
i++;}
delay_ms(5);
//***********************************
if(i>3){
i=1;
b=0;
c=0;}
if(i==1) {
a=key;
num=a;}
if(i==2){
b=key;
num=a*10+b;}
if(i==3){
c=key;
num=a*100+b*10+c;}
if(key==11){
num=0;
i=0;
a=0;
b=0;
c=0;}
lcd_clear();
sprintf(s_key,"key:%d,i=%d",num,i);
lcd_puts(s_key);
//delay_ms(100);
}
}
دیدگاه