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#include <util/delay.h>
#include <avr/io.h>
#include <avr/interrupt.h>

#define LED_PORT_DDR        DDRC
#define LED_PORT_OUTPUT     PORTC
#define LED             7		// LED IO13
#define ON_LED()  (LED_PORT_OUTPUT |=  (1<<LED)) //включение тестового светодиода
#define OFF_LED() (LED_PORT_OUTPUT &= ~(1<<LED)) //выключение тестового светодиода

// Declare your global variables here

// External Interrupt 0 service routine
ISR(INT0_vect)
{
// Place your code here
  ON_LED();
  _delay_ms(2000);
  OFF_LED();
}

int main(void)
{
// Declare your local variables here

// Crystal Oscillator division factor: 1

CLKPR=(1<<CLKPCE);
CLKPR=(0<<CLKPCE) | (0<<CLKPS3) | (0<<CLKPS2) | (0<<CLKPS1) | (0<<CLKPS0);

// Input/Output Ports initialization
// Port B initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 
DDRB=(0<<DDB7) | (0<<DDB6) | (0<<DDB5) | (0<<DDB4) | (0<<DDB3) | (0<<DDB2) | (0<<DDB1) | (0<<DDB0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T 
PORTB=(0<<PORTB7) | (0<<PORTB6) | (0<<PORTB5) | (0<<PORTB4) | (0<<PORTB3) | (0<<PORTB2) | (0<<PORTB1) | (0<<PORTB0);

// Port C initialization
// Function: Bit7=In Bit6=In 
DDRC=(0<<DDC7) | (0<<DDC6);
// State: Bit7=T Bit6=T 
PORTC=(0<<PORTC7) | (0<<PORTC6);

// Port D initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 
DDRD=(0<<DDD7) | (0<<DDD6) | (0<<DDD5) | (0<<DDD4) | (0<<DDD3) | (0<<DDD2) | (0<<DDD1) | (0<<DDD0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=P 
PORTD=(0<<PORTD7) | (0<<PORTD6) | (0<<PORTD5) | (0<<PORTD4) | (0<<PORTD3) | (0<<PORTD2) | (0<<PORTD1) | (1<<PORTD0);

// Port E initialization
// Function: Bit6=In Bit2=In 
DDRE=(0<<DDE6) | (0<<DDE2);
// State: Bit6=T Bit2=T 
PORTE=(0<<PORTE6) | (0<<PORTE2);

// Port F initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit1=In Bit0=In 
DDRF=(0<<DDF7) | (0<<DDF6) | (0<<DDF5) | (0<<DDF4) | (0<<DDF1) | (0<<DDF0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit1=T Bit0=T 
PORTF=(0<<PORTF7) | (0<<PORTF6) | (0<<PORTF5) | (0<<PORTF4) | (0<<PORTF1) | (0<<PORTF0);

// PLL initialization
// PLL Enabled: Off
PLLCSR=(0<<PINDIV) | (0<<PLLE) | (0<<PLOCK);
PLLFRQ=(0<<PINMUX) | (0<<PLLUSB) | (0<<PLLTM1) | (0<<PLLTM0) | (0<<PDIV3) | (0<<PDIV2) | (0<<PDIV1) | (0<<PDIV0);

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=0xFF
// OC0A output: Disconnected
// OC0B output: Disconnected
TCCR0A=(0<<COM0A1) | (0<<COM0A0) | (0<<COM0B1) | (0<<COM0B0) | (0<<WGM01) | (0<<WGM00);
TCCR0B=(0<<WGM02) | (0<<CS02) | (0<<CS01) | (0<<CS00);
TCNT0=0x00;
OCR0A=0x00;
OCR0B=0x00;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFFFF
// OC1A output: Disconnected
// OC1B output: Disconnected
// OC1C output: Disconnected
// 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
// Compare C Match Interrupt: Off
TCCR1A=(0<<COM1A1) | (0<<COM1A0) | (0<<COM1B1) | (0<<COM1B0) | (0<<COM1C1) | (0<<COM1C0) | (0<<WGM11) | (0<<WGM10);
TCCR1B=(0<<ICNC1) | (0<<ICES1) | (0<<WGM13) | (0<<WGM12) | (0<<CS12) | (0<<CS11) | (0<<CS10);
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
OCR1CH=0x00;
OCR1CL=0x00;

// Timer/Counter 3 initialization
// Clock source: System Clock
// Clock value: Timer3 Stopped
// Mode: Normal top=0xFFFF
// OC3A output: Disconnected
// OC3B output: Disconnected
// OC3C output: Disconnected
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer3 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
// Compare C Match Interrupt: Off
TCCR3A=(0<<COM3A1) | (0<<COM3A0) | (0<<COM3B1) | (0<<COM3B0) | (0<<COM3C1) | (0<<COM3C0) | (0<<WGM31) | (0<<WGM30);
TCCR3B=(0<<ICNC3) | (0<<ICES3) | (0<<WGM33) | (0<<WGM32) | (0<<CS32) | (0<<CS31) | (0<<CS30);
TCNT3H=0x00;
TCNT3L=0x00;
ICR3H=0x00;
ICR3L=0x00;
OCR3AH=0x00;
OCR3AL=0x00;
OCR3BH=0x00;
OCR3BL=0x00;
OCR3CH=0x00;
OCR3CL=0x00;

// Timer/Counter 4 initialization
// Clock: Timer4 Stopped
// Mode: Normal top=OCR4C
// OC4A output: OC4A=Disc. /OC4A=Disc.
// OC4B output: OC4B=Disc. /OC4B=Disc.
// OC4D output: OC4D=Disc. /OC4D=Disc.
// Fault Protection: Off
// Fault Protection Noise Canceler: Off
// Fault Protection triggered on Falling Edge
// Timer4 Overflow Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
// Compare D Match Interrupt: Off
// Fault Protection Interrupt: Off
// Dead Time Prescaler: 1
// Dead Time Rising Edge: 0.000 us
// Dead Time Falling Edge: 0.000 us

// Set Timer4 synchronous operation
PLLFRQ&=(1<<PINMUX) | (1<<PLLUSB) | (0<<PLLTM1) | (0<<PLLTM0) | (1<<PDIV3) | (1<<PDIV2) | (1<<PDIV1) | (1<<PDIV0);

TCCR4A=(0<<COM4A1) | (0<<COM4A0) | (0<<COM4B1) | (0<<COM4B0) | (0<<FOC4A) | (0<<FOC4B) | (0<<PWM4A) | (0<<PWM4B);
TCCR4B=(0<<PWM4X) | (0<<PSR4) | (0<<DTPS41) | (0<<DTPS40) | (0<<CS43) | (0<<CS42) | (0<<CS41) | (0<<CS40);
TCCR4C=(0<<COM4A1S) | (0<<COM4A0S) | (0<<COM4B1S) | (0<<COM4B0S) | (0<<COM4D1) | (0<<COM4D0) | (0<<FOC4D) | (0<<PWM4D);
TCCR4D=(0<<FPIE4) | (0<<FPEN4) | (0<<FPNC4) | (0<<FPES4) | (0<<FPAC4) | (0<<FPF4) | (0<<WGM41) | (0<<WGM40);
TCCR4E=(0<<TLOCK4) | (0<<ENHC4) | (0<<OC4OE5) | (0<<OC4OE4) | (0<<OC4OE3) | (0<<OC4OE2) | (0<<OC4OE1) | (0<<OC4OE0);
TC4H=0x00;
TCNT4=0x00;
TC4H=0x00;
OCR4A=0x00;
TC4H=0x00;
OCR4B=0x00;
TC4H=0x00;
OCR4C=0x00;
TC4H=0x00;
OCR4D=0x00;
DT4=0x00;

// Timer/Counter 0 Interrupt(s) initialization
TIMSK0=(0<<OCIE0B) | (0<<OCIE0A) | (0<<TOIE0);

// Timer/Counter 1 Interrupt(s) initialization
TIMSK1=(0<<ICIE1) | (0<<OCIE1C) | (0<<OCIE1B) | (0<<OCIE1A) | (0<<TOIE1);

// Timer/Counter 3 Interrupt(s) initialization
TIMSK3=(0<<ICIE3) | (0<<OCIE3C) | (0<<OCIE3B) | (0<<OCIE3A) | (0<<TOIE3);

// Timer/Counter 4 Interrupt(s) initialization
TIMSK4=(0<<OCIE4D) | (0<<OCIE4A) | (0<<OCIE4B) | (0<<TOIE4);

// External Interrupt(s) initialization
// INT0: On
// INT0 Mode: Falling Edge
// INT1: Off
// INT2: Off
// INT3: Off
// INT6: Off
EICRA=(0<<ISC31) | (0<<ISC30) | (0<<ISC21) | (0<<ISC20) | (0<<ISC11) | (0<<ISC10) | (1<<ISC01) | (0<<ISC00);
EICRB=(0<<ISC61) | (0<<ISC60);
EIMSK=(0<<INT6) | (0<<INT3) | (0<<INT2) | (0<<INT1) | (1<<INT0);
EIFR=(0<<INTF6) | (0<<INTF3) | (0<<INTF2) | (0<<INTF1) | (1<<INTF0);
// PCINT0 interrupt: Off
// PCINT1 interrupt: Off
// PCINT2 interrupt: Off
// PCINT3 interrupt: Off
// PCINT4 interrupt: Off
// PCINT5 interrupt: Off
// PCINT6 interrupt: Off
// PCINT7 interrupt: Off
PCMSK0=(0<<PCINT7) | (0<<PCINT6) | (0<<PCINT5) | (0<<PCINT4) | (0<<PCINT3) | (0<<PCINT2) | (0<<PCINT1) | (0<<PCINT0);
PCICR=(0<<PCIE0);

// USART1 initialization
// USART1 disabled
UCSR1B=(0<<RXCIE1) | (0<<TXCIE1) | (0<<UDRIE1) | (0<<RXEN1) | (0<<TXEN1) | (0<<UCSZ12) | (0<<RXB81) | (0<<TXB81);

// Analog Comparator initialization
// Analog Comparator: Off
// The Analog Comparator's positive input is
// connected to the AIN0 pin
// The Analog Comparator's negative input is
// connected to the AIN1 pin
ACSR=(1<<ACD) | (0<<ACBG) | (0<<ACO) | (0<<ACI) | (0<<ACIE) | (0<<ACIC) | (0<<ACIS1) | (0<<ACIS0);
ADCSRB=(0<<ACME);
// Digital input buffer on AIN0: On
DIDR1=(0<<AIN0D);

// ADC initialization
// ADC disabled
ADCSRA=(0<<ADEN) | (0<<ADSC) | (0<<ADATE) | (0<<ADIF) | (0<<ADIE) | (0<<ADPS2) | (0<<ADPS1) | (0<<ADPS0);

// SPI initialization
// SPI disabled
SPCR=(0<<SPIE) | (0<<SPE) | (0<<DORD) | (0<<MSTR) | (0<<CPOL) | (0<<CPHA) | (0<<SPR1) | (0<<SPR0);

// TWI initialization
// TWI disabled
TWCR=(0<<TWEA) | (0<<TWSTA) | (0<<TWSTO) | (0<<TWEN) | (0<<TWIE);

// USB Controller initialization
// USB Mode: Disabled
// USB Pad Regulator: Off
// OTG (VBUS) Pad: Off
// VBUS Transition interrupt: Off
UHWCON=(0<<UVREGE);
USBCON=(0<<USBE) | (0<<FRZCLK) | (0<<OTGPADE) | (0<<VBUSTE);
// Clear the interrupt flag
USBINT=(0<<VBUSTI);

LED_PORT_DDR |= (1<<LED);   /* делаем ножку LED выходом */

  ON_LED();
  _delay_ms(2000);
  OFF_LED();

// Global enable interrupts
sei();

while (1)
      {
      // Place your code here

      }
 return 0;     
}