Chapter 2. API Reference
Header File
• components/hal/include/hal/timer_types.h
Structures
struct timer_config_t
Data structure with timer’s configuration settings.
Public Members
timer_alarm_t alarm_en
Timer alarm enable
timer_start_t counter_en
Counter enable
timer_intr_mode_t intr_type
Interrupt mode
timer_count_dir_t counter_dir
Counter direction
timer_autoreload_t auto_reload
Timer auto-reload
uint32_t divider
Counter clock divider. The divider’s range is from from 2 to 65536.
timer_src_clk_t clk_src
Use XTAL as source clock.
Enumerations
enum timer_group_t
Selects a Timer-Group out of 2 available groups.
Values:
TIMER_GROUP_0 = 0
Hw timer group 0
TIMER_GROUP_1 = 1
Hw timer group 1
TIMER_GROUP_MAX
enum timer_idx_t
Select a hardware timer from timer groups.
Values:
TIMER_0 = 0
Select timer0 of GROUPx
TIMER_1 = 1
Select timer1 of GROUPx
TIMER_MAX
enum timer_count_dir_t
Decides the direction of counter.
Values:
TIMER_COUNT_DOWN = 0
Descending Count from cnt.high|cnt.low
Espressif Systems 247
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