#if !defined(F_CLOCK)\r
#error F_CLOCK is not defined. You must define F_CLOCK to the frequency of the unprescaled input clock in your project makefile.\r
#endif\r
\r
#if (F_CLOCK == 8000000)\r
#if (defined(__AVR_AT90USB82__) || defined(__AVR_AT90USB162__) || \\r
#if !defined(F_CLOCK)\r
#error F_CLOCK is not defined. You must define F_CLOCK to the frequency of the unprescaled input clock in your project makefile.\r
#endif\r
\r
#if (F_CLOCK == 8000000)\r
#if (defined(__AVR_AT90USB82__) || defined(__AVR_AT90USB162__) || \\r
#define USB_PLL_PSC (1 << PLLP0)\r
#elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))\r
#define USB_PLL_PSC (1 << PINDIV)\r
#define USB_PLL_PSC (1 << PLLP0)\r
#elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))\r
#define USB_PLL_PSC (1 << PINDIV)\r