AVR Freaks

MY CODE(just blink a LED):

#ifndef F_CPU
#define F_CPU 1000000UL
#endif

#include <avr/io.h>
#include <util/delay.h>//it has delay function
int main(void)
{
    DDRB=0b00000001;
    while(1)
    {
        PORTB=0b00000001;
        _delay_ms(1000); //so that LED would remain in ON state for 1 sec and then  turns off  for  1 sec.
        PORTB=0b00000000;
        _delay_ms(1000);
    }
}

USBASP RELEASE:(PROGRAMM WITH THIS)

Command:C:\Users\Boss\Documents\Atmel Studio\7.0\win32_executable\avrdude.exe

Arguments:-c usbasp -p m168p -U flash:w:$(TargetDir)$(TargetName).hex:i

DEBUG USBASP:

Command:C:\Users\Boss\Documents\Atmel Studio\7.0\win32_executable\avrdude.exe

Arguments:-c usbasp -p m168 -U flash:w:$(ProjectDir)/Debug/$(ItemFileName).hex

Thank for your reply.