EEPROM.rar_AVR Studio_The Studio_atmega16 AVR Studio _atmega16 e

#include<avr/io.h> #include<util/delay.h> #define rs 0x01; #define rw 0x02; #define en 0x04; unsigned char EEPROM_read(unsigned int uiAddress); void lcd_cmd(unsigned char cmd); void lcd_data(unsigned char data); void initialize(); void EEPROM_write(unsigned int uiAddress, unsigned char ucData); void kepad(); void lcd_cmd(unsigned char cmd) { PORTC=0x00; PORTD=cmd; PORTC|=en; _delay_ms(20); PORTC^=en; } void lcd_data(unsigned char data) { PORTC=0x00; PORTC|=rs; PORTD=data; PORTC|=en; _delay_ms(50); PORTC^=en; } void initialize() { lcd_cmd(0x38); lcd_cmd(0x0f); } void EEPROM_write(unsigned int uiAddress, unsigned char ucData) { //Wait for completion of previous write while(EECR & (1<<EEWE)); // Set up address and data registers EEAR = uiAddress; EEDR = ucData; // Write logical one to EEMWE EECR |= (1<<EEMWE); // Start eeprom write by setting EEWE EECR |= (1<<EEWE); } unsigned char EEPROM_read(unsigned int uiAddress) { // Wait for completion of previous write while(EECR & (1<<EEWE)); // Set up address register EEAR = uiAddress; // Start eeprom read by writing EERE EECR |= (1<<EERE); // Return data from data register return EEDR; } void kepad() { unsigned char name1[15]; unsigned char star="*"; unsigned char arry[9]={0,1,2,3,4,5,6,7,8,9}; initialize(); lcd_cmd(0x80); unsigned int uiAddress=0060; PORTA = 0xf7; if(PINA==0xf6)//1 { while(PINA==0xf6) { EEPROM_write(uiAddress,arry[1]); uiAddress++; lcd_data(star); } } else if(PINA==0xf5)//2 { while(PINA==0xf5) { EEPROM_write(uiAddress,arry[2]); uiAddress++; lcd_data(star); } } else if(PINA==0xf3)//3 { while(PINA==0xf3) { EEPROM_write(uiAddress,arry[3]); uiAddress++; lcd_data(star); } } PORTA = 0xef; if(PINA==0xee)//4 { while(PINA==0xee) { EEPROM_write(uiAddress,arry[4]); uiAddress++; lcd_data(star); } } else if(PINA==0xed)//5 { while(PINA==0xed) { EEPROM_write(uiAddress,arry[5]); uiAddress++; lcd_data(star); } } else if(PINA==0xeb)//6 { while(PINA==0xeb) { EEPROM_write(uiAddress,arry[6]); uiAddress++; lcd_data(star); } } PORTA = 0xdf; if(PINA==0xde)//7 { while(PINA==0xde) { EEPROM_write(uiAddress,arry[7]); uiAddress++; lcd_data(star); } } else if(PINA==0xdd)//8 { while(PINA==0xdd) { EEPROM_write(uiAddress,arry[8]); uiAddress++; lcd_data(star); } } else if(PINA==0xdb)//9 { while(PINA==0xdb) { EEPROM_write(uiAddress,arry[9]); uiAddress++; lcd_data(star); } } PORTA = 0xbf; if(PINA==0xbd)//0 { while(PINA==0xbd) { EEPROM_write(uiAddress,arry[0]); uiAddress++; lcd_data(star); } } else if(PINA==0xbb)//* { while(PINA==0xbb) { } int m=0; m=uiAddress--; uiAddress=0060; for(int i=0; i<m; i++) { name1[i]=EEPROM_read(uiAddress); uiAddress++; } initialize(); lcd_cmd(0x80); if(name1[4]==1234) { unsigned char correct[]="Correct password"; for(int p=0; p<sizeof(correct);p++) lcd_data(correct[p]); return 0; } else { unsigned char wrong[]="wrong password"; for(int p=0; p<sizeof(wrong);p++) lcd_data(wrong[p]); kepad(); } } else if(PINA==0xbe)//# { while(PINA==0xbe) { } int l=0; l=uiAddress--; uiAddress=0060; for(int i=0; i<l; i++) { name1[i]=EEPROM_read(uiAddress); uiAddress++; for(int p=0; p<sizeof(name1);p++) lcd_data(name1[p]); } } } int main() { DDRC=0x07; DDRD=0xff; DDRA=0xf8; initialize(); lcd_cmd(0x80); //unsigned int uiAddress=0060; unsigned char ucData[]="Enter the password"; //unsigned char name1[50]; for( int k=0; k<sizeof(ucData); k++) { lcd_data(ucData[k]); //EEPROM_write(uiAddress,ucData[k]); //uiAddress++; } lcd_cmd(0xc2); void keypad(); /* uiAddress=0060; for(int i=0; i<sizeof(ucData); i++) { name1[i]=EEPROM_read(uiAddress); lcd_data(name1[i]); uiAddress++; } //lcd_cmd(0xc2); //for(int j=0; j<sizeof(name1); j++) //lcd_data(name1[j]); */ return(1); }