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package nRF51.Clock is

   --------------------------
   -- High frequency clock --
   --------------------------

   type High_Freq_Source_Kind is (HFCLK_RC, HFCLK_XTAL);
   type High_Freq_Ext_Freq is (HFCLK_16MHz, HFCLK_32MHz);

   procedure Set_High_Freq_External_Frequency (Freq : High_Freq_Ext_Freq);

   procedure Set_High_Freq_Source (Src : High_Freq_Source_Kind);

   function High_Freq_Source return High_Freq_Source_Kind;

   function High_Freq_Running return Boolean;

   procedure Start_High_Freq;

   procedure Stop_High_Freq;

   -------------------------
   -- Low frequency clock --
   -------------------------

   type Low_Freq_Source_Kind is (LFCLK_RC, LFCLK_XTAL, LFCLK_SYNTH);

   procedure Set_Low_Freq_Source (Src : Low_Freq_Source_Kind);

   function Low_Freq_Source return Low_Freq_Source_Kind;

   function Low_Freq_Running return Boolean;

   procedure Start_Low_Freq;

   procedure Stop_Low_Freq;

end nRF51.Clock;
