#include
#include
#include
#define high_byte(x) ((x & 0xFF00) >> 8)
#define NO 0x00 // Value representing NO
// I2C Bus functions
#asm
.equ __i2c_port=0x12 ;PORTD
.equ __sda_bit=3
.equ __scl_bit=2
#endasm
#include
#asm
.equ __lcd_port=0x15 ;PORTC
#endasm
#include
// Declare your global variables here
unsigned char read_byte (unsigned int address);
void write_byte (unsigned char data_out, unsigned int address);
void READ_FREQ_COUNTER(void);
void READ_PC_COUNTER(void);
void WRITE_TO_EEPROM(void);
void WRITE_TO_EEPROM2(void);
unsigned int FREQ_COUNTER=1;
unsigned int PC_COUNTER=3;
void main(void)
{
unsigned char b[20];
// 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=0xff;
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=0xff;
// 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=0xff;
// 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: Timer1 Stopped
// Mode: Normal top=FFFFh
// 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=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;
PORTD.2=0;
PORTD.3=0;
// I2C Bus initialization
i2c_init();
//unsigned char i2c_start(void);
//unsigned char i2c_read(unsigned char ack);
//unsigned char i2c_write(unsigned char data);
//write_byte((unsigned char)eeprom_address , 1);
//eeprom_address1= read_byte(1);
//READ_PC_COUNTER();
delay_ms(200);
READ_FREQ_COUNTER();
sprintf(b,"FREQ - %u ,PC - %u",FREQ_COUNTER,PC_COUNTER) ;
lcd_init(40);
lcd_clear();
lcd_putsf("ETM");
delay_ms(2000);
while (1)
{
sprintf(b,"FREQ - %u ,PC - %u",FREQ_COUNTER,PC_COUNTER) ;
lcd_clear();
lcd_puts(b);
if (PINB.1 == 0)
{
FREQ_COUNTER++;
WRITE_TO_EEPROM();
delay_ms(200);
}
if (PINB.2 == 0)
{
PC_COUNTER++;
WRITE_TO_EEPROM();
delay_ms(200);
}
if (PINB.3 == 0)
{
READ_FREQ_COUNTER();
// READ_PC_COUNTER();
delay_ms(200);
}
delay_ms(600);
};
}
void write_byte (unsigned char data_out, unsigned int address)
{
i2c_start(); // Send start signal
i2c_write(0xA0); // Send identifier I2C address
i2c_write(high_byte(address)); // Send address to EEPROM
i2c_write((unsigned char)address); // Send address to EEPROM
i2c_write(data_out); // Send low byte to EEPROM
delay_ms(100); // Delay a period of time to write
i2c_stop(); // Send I2C Stop Transfer
delay_ms(100); // Delay a period of time to write
}
//------------------------------------------------------------------------------
// Procedure: read_byte
// Inputs: address
// Outputs: none
// Description: Reads a byte from the EEPROM given the address
//------------------------------------------------------------------------------
unsigned char read_byte (unsigned int address)
{
unsigned char data_in;
i2c_start(); // Send start signal
i2c_write(0xA0); // Send identifer I2C address
i2c_write(high_byte(address)); // Send address to EEPROM
i2c_write((unsigned char)address); // Send address to EEPROM
i2c_start(); // Send I2C Start Transer
i2c_write(0xA1); // Send identifer I2C address
data_in = i2c_read(NO); // Read byte
i2c_stop(); // Send I2C Stop Transfer
return data_in;
}
void WRITE_TO_EEPROM()
{
i2c_start();
i2c_write(0xA0);
//i2c_write(0x00);
i2c_write(high_byte(0)); // Send address to EEPROM
i2c_write((unsigned char)0);
i2c_write((unsigned char)FREQ_COUNTER);
delay_ms(40);
i2c_stop();
delay_ms(100);
i2c_start();
i2c_write(0xA0);
i2c_write(0x10);
//i2c_write(high_byte(0)); // Send address to EEPROM
// i2c_write((unsigned char)0);
i2c_write((unsigned char)PC_COUNTER);
delay_ms(40);
i2c_stop();
}
void READ_FREQ_COUNTER()
{
i2c_start();
i2c_write(0xA0);
i2c_write(high_byte(0)); // Send address to EEPROM
i2c_write((unsigned char)0);
i2c_start();
i2c_write(0xA1);
FREQ_COUNTER = i2c_read(0);
i2c_stop();
delay_ms(100);
i2c_start();
i2c_write(0xA0);
i2c_write(0x10);
// i2c_write(high_byte(0)); // Send address to EEPROM
// i2c_write((unsigned char)0);
i2c_start();
i2c_write(0xA1);
PC_COUNTER = i2c_read(0);
// eeprom_address = i2c_read(0);
// sprintf(b,"EE - %u , %u",i2c_read(0x00), i2c_read(0x00)) ;
i2c_stop();
}
void WRITE_TO_EEPROM2()
{
i2c_start();
i2c_write(0xB0);
i2c_write(0x00);
i2c_write((unsigned char)PC_COUNTER);
i2c_stop();
}
void READ_PC_COUNTER()
{
i2c_start();
i2c_write(0xB0);
i2c_write(0x00);
i2c_start();
i2c_write(0xB1);
// eeprom_address1 = i2c_read(0);
PC_COUNTER = i2c_read(0);
// sprintf(b,"EE - %u , %u",i2c_read(0x00), i2c_read(0x00)) ;
i2c_stop();
}
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