// Start PLL and enable clock
void
UsbStartPLL(void)
{
UsbSetPLL_XTAL_Frequency();
UsbEnablePLL();
UsbWaitPLL_Locked();
UsbEnableClock();
}
void hcdi_init()
{
/* register virtual root hub driver */
usb_register_driver(&at90usb1287_roothub);
/* enable regulator */
UHWCON |= (1<<UVREGE);
/* force host mode */
UHWCON &= ~(1<<UIDE);
UHWCON &= ~(1<<UIMOD);
/* pll sart */
UsbSetPLL_CPU_Frequency();
UsbEnablePLL();
UsbWaitPLL_Locked();
/* Usb_disable */
USBCON &= ~(1<<USBE);
/* Usb_enable */
USBCON |= (1<<USBE);
/* unfreeze clock */
UsbEnableClock();
/* usb attach */
UDCON &= ~(1<<DETACH);
/* enable uconv pin */
UsbDisableUVCON_PinControl();
UsbEnableUID_ModeSelection();
/* select host */
USBCON |= (1<<HOST);
/* disable vbus hw control */
OTGCON |= (1<<VBUSHWC);
// 4
/* enable vbus */
OTGCON |= (1<<VBUSREQ);
UHIEN |= (1<<DDISCE);
UHIEN |= (1<<DCONNE);
UHIEN = 0xff;
}
