hw_timer.h File Reference

Copyright (c) 2014-2018 Microchip Technology Inc.

and its subsidiaries.

Typedefs
typedef void(*	tmr_callback_t )(void)

Functions
void	restore_cpu_interrupt (uint8_t flags)
	to restore saved interrupts status More...
uint8_t	save_cpu_interrupt (void)
	to save current interrupts status More...
void	tc_cca_callback (void)
	hw timer compare callback More...
void	tc_ovf_callback (void)
	hw timer overflow callback 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...
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 interrupts status

Parameters

saved

interrupt status

References cpu_irq_restore().

uint8_t save_cpu_interrupt

(

void

)

to save current interrupts status

References cpu_irq_save().

void tc_cca_callback

(

void

)

hw timer compare callback

References tmr_cca_callback().

Referenced by tmr_init().

void tc_ovf_callback

(

void

)

hw timer overflow callback

References tmr_ovf_callback().

Referenced by tmr_init().

void tmr_disable_cc_interrupt

(

void

)

to disable compare interrupt

References TC_CCA, tc_clear_cc_interrupt(), TC_INT_LVL_OFF, tc_set_cca_interrupt_level(), and TIMER.

void tmr_disable_ovf_interrupt

(

void

)

to disable overflow interrupt

References tc_clear_overflow(), TC_INT_LVL_OFF, tc_set_overflow_interrupt_level(), and TIMER.

void tmr_enable_cc_interrupt

(

void

)

to enable compare interrupt

References TC_CCA, tc_clear_cc_interrupt(), TC_INT_LVL_HI, tc_set_cca_interrupt_level(), and TIMER.

uint8_t tmr_init

(

void

)

to initialiaze hw timer

References DEF_1MHZ, sysclk_get_peripheral_bus_hz(), tc_cca_callback(), TC_CCAEN, tc_enable(), tc_enable_cc_channels(), TC_INT_LVL_HI, TC_INT_LVL_OFF, tc_ovf_callback(), tc_set_cca_interrupt_callback(), tc_set_cca_interrupt_level(), tc_set_overflow_interrupt_callback(), tc_set_overflow_interrupt_level(), tc_set_wgm(), TC_WG_NORMAL, tc_write_clock_source(), tc_write_period(), TIMER, and TIMER_PERIOD.

uint16_t tmr_read_count

(

void

)

read the actual timer count from register

References tc_read_count(), and TIMER.

void tmr_stop

(

void

)

to stop the running timer

References tc_disable(), and TIMER.

void tmr_write_cmpreg

(

uint16_t

compare_value

)

to load compare value in channel compare register

References TC_CCA, tc_write_cc(), and TIMER.