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/**
** @file clock.h
**
** @author CSCI-452 class of 20245
**
** @brief Clock module declarations
*/
#ifndef CLOCK_H_
#define CLOCK_H_
#include <common.h>
/*
** General (C and/or assembly) definitions
*/
// conversion functions for seconds, ms, and ticks
// (SEC_TO_MS is defined in defs.h)
#define MS_TO_TICKS(n) ((n))
#define SEC_TO_TICKS(n) (MS_TO_TICKS(SEC_TO_MS(n)))
#define TICKS_TO_SEC(n) ((n) / CLOCK_FREQ)
#define TICKS_TO_SEC_ROUNDED(n) (((n)+(CLOCK_FREQ-1)) / CLOCK_FREQ)
#ifndef ASM_SRC
/*
** Start of C-only definitions
*/
/*
** Types
*/
/*
** Globals
*/
// current system time
extern uint32_t system_time;
/*
** Prototypes
*/
/**
** Name: clk_init
**
** Clock module initialization
*/
void clk_init( void );
#endif /* !ASM_SRC */
#endif
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