RC_calib_oscsampleif.h

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/* This file has been prepared for Doxygen automatic documentation generation.*/
#include <stdint.h>

// Defines
#define ZERO_C_IN_KELVIN        273 
#define ROOM_TEMPERATURE        25  
#define HOT_TEMPERATURE         85  

#define TEMP_DIFF_LIMIT         5   

//#define OSI_PRESCALER         128 //!< Fixed number in the OSI module.

// Prescalers for Timer0. 0 = OFF
#define T0_PRESCALER_0          0           
#define T0_PRESCALER_1          (1 << CS00)
#define T0_PRESCALER_8          (1 << CS01)
#define T0_PRESCALER_64         (1 << CS01) | (1 << CS00)
#define T0_PRESCALER_256        (1 << CS02)
#define T0_PRESCALER_1024       (1 << CS02) | (1 << CS00)
#define T0_PRESCALER            T0_PRESCALER_1

#define SYSTEM_CLK_MHz          1       
#define FAST_RC_TARGET_MHZ      SYSTEM_CLK_MHz  

//#define CLK_PRESCALER         (1 << CLKPS1) | (1 << CLKPS0)   // To give same frequency as above.
#define FAST_RC_SEGMENT_BIT     5       
#define FAST_RC_NO_SEGMENTS     256 / (1 << FAST_RC_SEGMENT_BIT) 
#define MAX_FAST_RC_ERROR       10      

#define RC_CALIB_CYCLES         8       

#define SLOW_RC             (1 << OSISEL0)// For selecting Fast RC calibration source
#define ULP_RC              (0 << OSISEL0)// For selecting Fast RC calibration source


// Prototypes
uint16_t CalculateSlowRCperiod(int16_t temperature);
uint16_t MeasureULPRCperiod(uint16_t cal_RC_period);
int8_t CalibrateFastRCruntime(uint16_t cal_RC_period);

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