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#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/interrupt.h>  /* for sei() */
#include <util/delay.h>     /* for _delay_ms() */
#include <avr/pgmspace.h>   /* required by usbdrv.h */
#include "usbdrv/usbdrv.h"
#include "usbdrv/requests.h"       /* The custom request numbers we use */
#include "usb_interface.h"
#include "lcd.h"

int main(void)
{
   DDRB = 0xFF;
   DDRD = 0xF0;         //D+ and D- both as input;
   
   // usb init      
    usbInit();
    usbDeviceDisconnect();  /* enforce re-enumeration, do this while interrupts are disabled! */
    usbDeviceConnect();
   // interrupt enable
    sei();      

   //Timer0 init
   TCCR0 = (1<<CS00);
   TIMSK =  (1<<TOIE0);
   TCNT0 = 223;   

   // init other devices
   lcd_init();   

   
    for(;;){}
    return 0;
}

/* ------------------------------------------------------------------------- */

ISR(TIMER0_OVF_vect)
{   
   usbPoll();
   TCNT0 = 230;
}