Picproje Elektronik Sitesi

#define  F_CPU 16000000
#include <avr/boot.h>
#include <util/delay.h>
#include <avr/interrupt.h>

uint8_t prog[] = {
	
	0x0C,0x94,0x34,0x00,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,
	0x82,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,
	0x00,0x68,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,0x0C,0x94,
	0x3E,0x00,0x58,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,0x0C,
	0x94,0x3E,0x00,0x48,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,
	0x0C,0x94,0x3E,0x00,0x38,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,
	0x00,0x0C,0x94,0x3E,0x00,0x28,0x0C,0x94,0x3E,0x00,0x0C,0x94,0x3E,0x00,0x11,0x24,
	0x1F,0xBE,0xCF,0xEF,0xD8,0xE0,0x4C,0xDE,0xBF,0xCD,0xBF,0x0E,0x94,0x40,0x00,0x0C,
	0x94,0x56,0x00,0x0C,0x94,0x00,0x00,0xDF,0x25,0x9A,0x2D,0x9A,0x2F,0xEF,0x8F,0xE4,
	0x93,0xEC,0x21,0x50,0x80,0x40,0x90,0x40,0xD9,0xE1,0xF7,0x00,0xC0,0x00,0x00,0x2D,
	0x98,0x2F,0xEF,0x8F,0xE4,0x93,0xEC,0x21,0x50,0x82,0x80,0x40,0x90,0x40,0xE1,0xF7,
	0x00,0xC0,0x00,0x00,0xEB,0xCF,0xF8,0x94,0xFF,0xCF,0x14,
};

void boot_program_page (uint32_t page, uint8_t *buf)
{
	uint16_t i;
	uint8_t sreg;

	// Disable interrupts.

	sreg = SREG;
	cli();

	eeprom_busy_wait ();

	boot_page_erase (page);
	boot_spm_busy_wait ();      // Wait until the memory is erased.

	for (i=0; i<SPM_PAGESIZE; i+=2)
	{
		// Set up little-endian word.

		uint16_t w = *buf++;
		w += (*buf++) << 8;

		boot_page_fill (page + i, w);
	}

	boot_page_write (page);     // Store buffer in flash page.
	boot_spm_busy_wait();       // Wait until the memory is written.

	// Reenable RWW-section again. We need this if we want to jump back
	// to the application after bootloading.

	boot_rww_enable ();

	// Re-enable interrupts (if they were ever enabled).

	SREG = sreg;
}

int main(void) {
	
	
	DDRB |= 1<<5; // Configuring PB5 as Output
	PORTB |= 1<<5; // Writing HIGH to PB5
	_delay_ms(3000); // Delay of 1 Second
	PORTB &= ~(1<<5); // Writing LOW to PB5
	_delay_ms(3000); // Delay of 1 Second*/
	
	//start at flash_start = 0x0000
     boot_program_page( 0, prog);
    
	//start the actual program
	asm volatile("jmp 0x0000");
	
	

}