/************************************************** ***
This program was produced by the
CodeWizardAVR V1.24.6 Standard
Automatic Program Generator
© Copyright 1998-2005 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com
e-mail
ffice@hpinfotech.com
Proect :
Version :
Date : 16/04/2009
Author : hp
Company : hp
Comments:
Chip type : ATmega16
Program type : Application
Clock frequency : 1.000000 MHz
Memory model : Small
External SRAM size : 0
Data Stack size : 256
************************************************** ***/
#include <mega16.h>
#include <stdio.h>
#include <math.h>
// Alphanumeric LCD Module functions
#asm
.equ __lcd_port=0x1B ;PORTA
#endasm
#include <lcd.h>
// Declare your global variables here
long int a,b,s;
unsigned char i;
char c,buffer[16];
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=Out Func2=Out Func1=Out Func0=Out
// State7=P State6=P State5=P State4=P State3=1 State2=1 State1=1 State0=1
PORTD=0xFF;
DDRD=0x0F;
// 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);
label1:
lcd_clear();
a=0,b=0,i=0;
c='',s=0;
while (1)
{
//PORTD.0
PORTD.0=0;
if(PIND.4==0){
lcd_putsf("7"
;
if(i==0){
a=7+a*10;
}
else if(i==1){
b=7+b*10;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.4==0);
}
if(PIND.5==0){
lcd_putsf("8"
;
if(i==0){
a=8+a*10;
}
else if(i==1){
b=8+b*10;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.5==0);
}
if(PIND.6==0){
lcd_putsf("9"
;
if(i==0){
a=9+a*10;
}
else if(i==1){
b=9+b*10;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.6==0);
}
if(PIND.7==0){
lcd_putsf("/"
;
if(i==0){
c='/';
i++;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.7==0);
}
PORTD.0=1;
//PORTD.1
PORTD.1=0;
if(PIND.4==0){
lcd_putsf("4"
;
if(i==0){
a=4+a*10;
}
else if(i==1){
b=4+b*10;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.4==0);
}
if(PIND.5==0){
lcd_putsf("5"
;
if(i==0){
a=5+a*10;
}
else if(i==1){
b=5+b*10;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.5==0);
}
if(PIND.6==0){
lcd_putsf("6"
;
if(i==0){
a=6+a*10;
}
else if(i==1){
b=6+b*10;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.6==0);
}
if(PIND.7==0){
lcd_putsf("*"
;
if(i==0){
c='*';
i++;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.7==0);
}
PORTD.1=1;
//PORTD.2
PORTD.2=0;
if(PIND.4==0){
lcd_putsf("1"
;
if(i==0){
a=1+a*10;
}
else if(i==1){
b=1+b*10;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.4==0);
}
if(PIND.5==0){
lcd_putsf("2"
;
if(i==0){
a=2+a*10;
}
else if(i==1){
b=2+b*10;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.5==0);
}
if(PIND.6==0){
lcd_putsf("3"
;
if(i==0){
a=3+a*10;
}
else if(i==1){
b=3+b*10;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.6==0);
}
if(PIND.7==0){
lcd_putsf("-"
;
if(i==0){
c='-';
i++;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.7==0);
}
PORTD.2=1;
//PORTD.3
PORTD.3=0;
if(PIND.4==0){
lcd_clear();
a=0;
b=0;
c='';
i=0;
while(PIND.4==0);
}
if(PIND.5==0){
lcd_putsf("0"
;
if(i==0){
a=0+a*10;
}
else if(i==1){
b=0+b*10;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.5==0);
}
if(PIND.6==0){
lcd_putsf("="
;
if(i==1||i==0)
break;
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.6==0);
}
if(PIND.7==0){
lcd_putsf("+"
;
if(i==0){
c='+';
i++;
}
else{
lcd_clear();
lcd_putsf("Incorrect input!"
;
}
while(PIND.7==0);
}
PORTD.3=1;
};
switch(c){
case '+':
s=a+b;
sprintf(buffer,"%d",s);
lcd_puts(buffer);
break;
case '-':
if(b>a){
s=b-a;
sprintf(buffer,"-%d",s);
}
else{
s=a-b;
sprintf(buffer,"%d",s);
}
lcd_puts(buffer);
break;
case '*':
s=a*b;
sprintf(buffer,"%d",s);
lcd_puts(buffer);
break;
case '/':
if(b==0){
lcd_clear();
lcd_putsf("Divide by zero!"
;
}
else
s=a/b;
sprintf(buffer,"%d",s);
lcd_puts(buffer);
break;
default:
sprintf(buffer,"%d",a);
lcd_puts(buffer);
break;
}
PORTD.3=0;
while(PIND.4);
PORTD.3=1;
goto label1;
}