Objective Development Forums

Code: Select all

#define USB_CFG_IOPORTNAME      D
/* This is the port where the USB bus is connected. When you configure it to
 * "B", the registers PORTB, PINB and DDRB will be used.
 */
#define USB_CFG_DMINUS_BIT      1
/* This is the bit number in USB_CFG_IOPORT where the USB D- line is connected.
 * This may be any bit in the port.
 */
#define USB_CFG_DPLUS_BIT       2

Code: Select all

static void hardwareInit(void)
{
   uint8_t   i, j;

    PORTB = 0xff;   /* activate all pull-ups */
    DDRB = 0;       /* all pins input */
    PORTC = 0xff;   /* activate all pull-ups */
    DDRC = 0;       /* all pins input */
    PORTD = 0b00111011;   /* activate pull-up on PD4/int1 */
    DDRD  = 0b11110101;   /* all pins output except PD4/int1 */
   j = 0;
   while(--j)           /* USB Reset by device only required on Watchdog Reset */
   {
      i = 0;
      while(--i);    /* delay >10ms for USB reset */
   }
    PORTD = 0b00111111;   /* activate pull-up on PD4/int1 */
   DDRD  = 0b11110001;   /* remove USB reset condition and make int0 input */
   //PORTD = 0b00111010;   /* activate pull-up on PD4/int1 */
                   /* configure timer 0 for a rate of 12M/(1024 * 256) = 45.78 Hz (~22ms) */
    TCCR0 = 5;         /* timer 0 prescaler: 1024 */
}

Code: Select all

    PORTD = 0b00111001;
    DDRD  = 0b11110101;
   j = 0;
   while(--j)
   {
      i = 0;
      while(--i);
   }
    PORTD = 0b00111001;   
   DDRD  = 0b11110001;