BeRTOS
timer_lpc2.h File Reference

Low-level timer module for NXP LPC2xxx (interface). More...

#include <hw/hw_cpufreq.h>
#include "cfg/cfg_timer.h"
#include <cfg/compiler.h>
#include <cfg/macros.h>
#include <io/lpc23xx.h>

Go to the source code of this file.

Values for CONFIG_TIMER.

Select which hardware timer interrupt to use for system clock and softtimers.

#define TIMER0_COMPARE0   0
 System timer on Timer0 Compare match0.
#define TIMER_DEFAULT   TIMER0_COMPARE0
 Default system timer.
#define DEFINE_TIMER_ISR   DECLARE_ISR_CONTEXT_SWITCH(timer_handler)
 System timer on Timer0 Compare match0.
#define TIMER_TICKS_PER_SEC   1000
 System timer on Timer0 Compare match0.
#define TIMER_HW_CNT   (CPU_FREQ / TIMER_TICKS_PER_SEC - 1)
 System timer on Timer0 Compare match0.
#define TIMER_HW_HPTICKS_PER_SEC   (CPU_FREQ)
 Frequency of the hardware high-precision timer.
#define SIZEOF_HPTIME_T   4
 System timer on Timer0 Compare match0.
typedef uint32_t hptime_t
 Type of time expressed in ticks of the hardware high-precision timer.
 ISR_PROTO_CONTEXT_SWITCH (timer_handler)
 System timer on Timer0 Compare match0.
void timer_hw_irq (void)
 System timer on Timer0 Compare match0.
bool timer_hw_triggered (void)
 System timer on Timer0 Compare match0.
hptime_t timer_hw_hpread (void)
 System timer on Timer0 Compare match0.
void timer_hw_init (void)
 HW dependent timer initialization.

Detailed Description

Low-level timer module for NXP LPC2xxx (interface).

Author:
Francesco Sacchi <batt@develer.com>

Definition in file timer_lpc2.h.


Define Documentation

#define TIMER_HW_HPTICKS_PER_SEC   (CPU_FREQ)

Frequency of the hardware high-precision timer.

Definition at line 71 of file timer_lpc2.h.