/**
* Enable and initialize the timer
* @param timer_num timer number to initialize
* @param frequency frequency of the timer
*/
void HAL_timer_start(const uint8_t timer_num, uint32_t frequency) {
const tTimerConfig timer = TimerConfig[timer_num];
timer_config_t config;
config.divider = timer.divider;
config.counter_dir = TIMER_COUNT_UP;
config.counter_en = TIMER_PAUSE;
config.alarm_en = TIMER_ALARM_EN;
config.intr_type = TIMER_INTR_LEVEL;
config.auto_reload = true;
// Select and initialize the timer
timer_init(timer.group, timer.idx, &config);
// Timer counter initial value and auto reload on alarm
timer_set_counter_value(timer.group, timer.idx, 0x00000000ULL);
// Configure the alam value and the interrupt on alarm
timer_set_alarm_value(timer.group, timer.idx, (HAL_TIMER_RATE) / timer.divider / frequency - 1);
timer_enable_intr(timer.group, timer.idx);
// TODO need to deal with timer_group1_isr
timer_isr_register(timer.group, timer.idx, timer_group0_isr, (void*)timer.idx, NULL, NULL);
timer_start(timer.group, timer.idx);
}
void espos_test_run_in_isr(espos_test_isr_routine routine)
{
int timer_group = TIMER_GROUP_0;
int timer_idx = TIMER_0;
timer_config_t config;
config.alarm_en = 1;
config.auto_reload = 0;
config.counter_dir = TIMER_COUNT_UP;
config.divider = TIMER_DIVIDER;
config.intr_type = TIMER_INTR_SEL;
config.counter_en = TIMER_PAUSE;
/*Configure timer*/
timer_init(timer_group, timer_idx, &config);
/*Stop timer counter*/
timer_pause(timer_group, timer_idx);
/*Load counter value */
timer_set_counter_value(timer_group, timer_idx, 0x00000000ULL);
/*Set alarm value*/
timer_set_alarm_value(timer_group, timer_idx, 1);
timer_set_auto_reload(timer_group, timer_idx, TIMER_AUTORELOAD_DIS);
/*Enable timer interrupt*/
timer_enable_intr(timer_group, timer_idx);
/*Set ISR handler*/
timer_isr_register(timer_group, timer_idx, timer_isr,
(void *) routine, ESP_INTR_FLAG_IRAM, NULL);
/*Start timer counter*/
timer_start(timer_group, timer_idx);
}
static void my_timer_init(int timer_group, int timer_idx, int ival)
{
timer_config_t config;
config.alarm_en = 1;
config.auto_reload = 1;
config.counter_dir = TIMER_COUNT_UP;
config.divider = TIMER_DIVIDER;
config.intr_type = TIMER_INTR_LEVEL;
config.counter_en = TIMER_PAUSE;
/*Configure timer*/
timer_init(timer_group, timer_idx, &config);
/*Stop timer counter*/
timer_pause(timer_group, timer_idx);
/*Load counter value */
timer_set_counter_value(timer_group, timer_idx, 0x00000000ULL);
/*Set alarm value*/
timer_set_alarm_value(timer_group, timer_idx, ival);
/*Enable timer interrupt*/
timer_enable_intr(timer_group, timer_idx);
}
static void example_timer_init(int timer_group, int timer_idx, uint32_t period)
{
timer_config_t config;
uint64_t alarm_val = (period * (TIMER_BASE_CLK / 1000000UL)) / 2;
config.alarm_en = 1;
config.auto_reload = 1;
config.counter_dir = TIMER_COUNT_UP;
config.divider = 2; //Range is 2 to 65536
config.intr_type = TIMER_INTR_LEVEL;
config.counter_en = TIMER_PAUSE;
/*Configure timer*/
timer_init(timer_group, timer_idx, &config);
/*Stop timer counter*/
timer_pause(timer_group, timer_idx);
/*Load counter value */
timer_set_counter_value(timer_group, timer_idx, 0x00000000ULL);
/*Set alarm value*/
timer_set_alarm_value(timer_group, timer_idx, alarm_val);
/*Enable timer interrupt*/
timer_enable_intr(timer_group, timer_idx);
}
