pll_drv.h

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00015 #ifndef PLL_DRV_H
00016 #define PLL_DRV_H
00017 
00018 //_____ I N C L U D E S ____________________________________________________
00019 
00023 //_____ M A C R O S ________________________________________________________
00024 
00028 #define PLLx06          ( (0<<PLLP2) | (0<<PLLP1) | (0<<PLLP0) )
00029 #define PLLx03          ( (0<<PLLP2) | (0<<PLLP1) | (1<<PLLP0) )
00030 
00031 
00036 #define Start_pll(clockfactor)                                                  \
00037            (PLLCSR = ( clockfactor  | (1<<PLLE)  ))
00038 
00040 #define Is_pll_ready()       (PLLCSR & (1<<PLOCK) )
00041 
00043 #define Wait_pll_ready()     while (!(PLLCSR & (1<<PLOCK)))
00044 
00046 #define Stop_pll()           (PLLCSR  &= (~(1<<PLLE)) ) 
00047 
00048       // Start the PLL in autofactor mode
00049       // regarding FOSC define
00050 #if   (FOSC==8000)
00053    #define Pll_start_auto()   Start_pll(PLLx06)
00054 #elif (FOSC==16000)
00055    #define Pll_start_auto()   Start_pll(PLLx03)
00056 #else
00057    #error   "FOSC should be defined in config.h"
00058 #endif
00059 
00061 
00063 #endif  // PLL_DRV_H
00064 
00065 

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