hw_timer.h File Reference

Copyright (c) 2014-2018 Microchip Technology Inc.

and its subsidiaries.

#include <stdint.h>

Typedefs
typedef void(*	tmr_callback_t )(void)

Functions
void	restore_cpu_interrupt (uint8_t flags)
	to restore saved interrupt status More...
uint8_t	save_cpu_interrupt (void)
	to save current interrupt status More...
void	tmr_disable_cc_interrupt (void)
	to disable compare interrupt More...
void	tmr_disable_ovf_interrupt (void)
	to disable overflow interrupt More...
void	tmr_enable_cc_interrupt (void)
	to enable compare interrupt More...
void	tmr_enable_ovf_interrupt (void)
	to enable overflow interrupt More...
uint8_t	tmr_init (void)
	to initialiaze hw timer More...
uint16_t	tmr_read_count (void)
	read the actual timer count from register More...
void	tmr_stop (void)
	to stop the running timer More...
void	tmr_write_cmpreg (uint16_t compare_value)
	to load compare value in channel compare register More...

typedef void(* tmr_callback_t)(void)

void restore_cpu_interrupt

(

uint8_t

flags

)

to restore saved interrupt status

Parameters

saved

interrupt status

References cpu_irq_restore().

uint8_t save_cpu_interrupt

(

void

)

to save current interrupt status

References cpu_irq_save().

void tmr_disable_cc_interrupt

(

void

)

to disable compare interrupt

References tc_interrupt_t::cpcs, tc_configure_interrupts(), TIMER, and TIMER_CHANNEL_ID.

Referenced by tmr_init().

void tmr_disable_ovf_interrupt

(

void

)

to disable overflow interrupt

References tc_interrupt_t::covfs, tc_configure_interrupts(), TIMER, and TIMER_CHANNEL_ID.

void tmr_enable_cc_interrupt

(

void

)

to enable compare interrupt

References tc_interrupt_t::cpcs, tc_configure_interrupts(), tc_read_sr(), TIMER, and TIMER_CHANNEL_ID.

void tmr_enable_ovf_interrupt

(

void

)

to enable overflow interrupt

References tc_interrupt_t::covfs, tc_configure_interrupts(), tc_read_sr(), TIMER, and TIMER_CHANNEL_ID.

Referenced by tmr_init().

uint8_t tmr_init

(

void

)

to initialiaze hw timer

References tc_waveform_opt_t::channel, configure_irq_handler(), DEF_1MHZ, sysclk_enable_peripheral_clock(), sysclk_get_peripheral_bus_hz(), TC_BURST_NOT_GATED, TC_CLOCK_RISING_EDGE, TC_CLOCK_SOURCE_TC2, TC_EVT_EFFECT_NOOP, TC_EXT_EVENT_SEL_TIOB_INPUT, tc_init_waveform(), TC_SEL_NO_EDGE, tc_start(), TC_WAVEFORM_SEL_UP_MODE, TIMER, TIMER_CHANNEL_ID, timer_multiplier, tmr_disable_cc_interrupt(), and tmr_enable_ovf_interrupt().

uint16_t tmr_read_count

(

void

)

read the actual timer count from register

References tc_read_tc(), TIMER, and TIMER_CHANNEL_ID.

void tmr_stop

(

void

)

to stop the running timer

References tc_stop(), TIMER, and TIMER_CHANNEL_ID.

void tmr_write_cmpreg

(

uint16_t

compare_value

)

to load compare value in channel compare register

References tc_write_rc(), TIMER, and TIMER_CHANNEL_ID.