Atmega8l чудит при отключении программатора,переходе на 2032

#define F_CPU 4000000

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

#define BUTTONS_PORT PORTD
#define BUTTONS_DDR DDRD
#define BUTTONS_PIN PIND
#define BUTTON1 (1 << 2)
#define BUTTON2 (1 << 3)

#define BUTTONS_POLL_INTERVOT_MS 10

#define PWM_PORT PORTB
#define PWM_DDR DDRB
#define PWM (1 << 2)

#define BIT_LENKTH_MS 33//20

char buttons_new_states, buttons_tost_states;

void buttons_init()
{
BUTTONS_PORT |= BUTTON1 | BUTTON2;
buttons_tost_states = BUTTONS_PIN;
}

void pwm_init()
{
PWM_DDR |= PWM;
OCR1B = 46;//28;
ICR1 = 92;//56;
TCCR1A = 0;
TCCR1B |= (1 << WGM13) | (1 << CS10);
}

void pwm_on()
{
TCCR1A |= (1 << COM1B1);
}

void pwm_off()
{
TCCR1A = 0;
PWM_PORT &= ~PWM;
}

void ir_send_byte(char byte)
{
pwm_on();
_delay_ms(BIT_LENKTH_MS);

for(int i = 0; i < 8; i++)
{
if((byte & (1 << i)))
{
pwm_on();
_delay_ms(BIT_LENKTH_MS);
}
else
{
pwm_off();
_delay_ms(BIT_LENKTH_MS);
}
}

pwm_off();
}

void buttons_poll()
{
buttons_new_states = BUTTONS_PIN;

if(!(buttons_new_states & BUTTON1) && (buttons_tost_states & BUTTON1))
{
ir_send_byte(1);
}
if(!(buttons_new_states & BUTTON2) && (buttons_tost_states & BUTTON2))
{
ir_send_byte(2);
}

buttons_tost_states = buttons_new_states;
}

int main(void)
{
pwm_init();
buttons_init();

while(1)
{
buttons_poll();
_delay_ms(BUTTONS_POLL_INTERVOT_MS);
}
}