pll_drv.h

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#ifndef PLL_DRV_H
#define PLL_DRV_H

//_____ I N C L U D E S ____________________________________________________

//_____ M A C R O S ________________________________________________________

#define PLLx06          ( (0<<PLLP2) | (1<<PLLP1) | (1<<PLLP0) )

#ifdef __ICCAVR__
   #if (defined(__AT90USB1287__) || defined(__AT90USB1286__)) 
      #define PLLx03          ( (1<<PLLP2) | (0<<PLLP1) | (1<<PLLP0) )
   #elif (defined(__AT90USB647__) || defined(__AT90USB646__) || defined(__ATmega32U6__))
      #define PLLx03          ( (1<<PLLP2) | (1<<PLLP1) | (0<<PLLP0) )
   #else
      #error TARGET should be defined 
   #endif
#elif defined __GNUC__
   #if (defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB1286__)) 
      #define PLLx03          ( (1<<PLLP2) | (0<<PLLP1) | (1<<PLLP0) )
   #elif (defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB646__) || defined(__AVR_ATmega32U6__))
      #define PLLx03          ( (1<<PLLP2) | (1<<PLLP1) | (0<<PLLP0) )
   #endif
#else // Other compiler
   #error Compiler unknow
#endif


#define Start_pll(clockfactor)   (PLLCSR = ( clockfactor  | (1<<PLLE)  ))
#define Is_pll_ready()           (PLLCSR & (1<<PLOCK) )
#define Wait_pll_ready()         while (!(PLLCSR & (1<<PLOCK)))
#define Stop_pll()               (PLLCSR  &= (~(1<<PLLE)),PLLCSR=0 ) 
#ifdef CUSTOM_PLL_START_AUTO
   #define    Pll_start_auto()   CUSTOM_PLL_START_AUTO
#else

      // Start the PLL in autofactor mode
      // regarding FOSC define
#if   (FOSC==8000)
   #define Pll_start_auto()   Start_pll(PLLx06)
#elif (FOSC==16000)
   #define Pll_start_auto()   Start_pll(PLLx03)
#else
   #error   "FOSC should be defined with 8000KHz or 16000KHz in config.h"
#endif
#endif


#endif  // PLL_DRV_H

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