Hi. I'm trying to study nrf52832
but, APP_TIMER do not work.. what should i do?
(1)
mcu : nrf52832
sdk: nRF5_SDK_15.2.0_9412b96
(2) setting :
> sdk_config.h -> #define APP_TIMER_ENABLED 1
> set timeout intervals
#define TIMEOUT_INTERVAL_SYSTEM_TIMER APP_TIMER_TICKS(100) // ms
#define TIMEOUT_INTERVAL_LED_TIMER APP_TIMER_TICKS(100) // ms
#define TIMEOUT_INTERVAL_BUTTON_TIMER APP_TIMER_TICKS(100) // ms
(3) flow :
APP_TIMER_DEF(htim1); // System Timer (traffic & sensing)
APP_TIMER_DEF(htim2); // LED Timer
APP_TIMER_DEF(htim3); // Button Timer
void INIT_APP_TIMER(void)
{
err_code = app_timer_init();
err_code |= app_timer_create(&htim1,APP_TIMER_MODE_REPEATED,SystemTimer_timeout_handler);
err_code |= app_timer_create(&htim2,APP_TIMER_MODE_REPEATED,LedTimer_timeout_handler);
err_code |= app_timer_create(&htim3,APP_TIMER_MODE_SINGLE_SHOT,ButtonTimer_timeout_handler);
}
void START_APP_TIMER(void)
{
err_code = app_timer_start(htim1, TIMEOUT_INTERVAL_SYSTEM_TIMER, NULL);
err_code |= app_timer_start(htim2, TIMEOUT_INTERVAL_LED_TIMER, NULL);
err_code |= app_timer_start(htim3, TIMEOUT_INTERVAL_BUTTON_TIMER, NULL);
}
int main(void)
{
INIT_APP_TIMER();
START_APP_TIMER();
while (true){}
}
(4) timeout handlers :
uint32_t count1=0,count2=0,count3=0;
void SystemTimer_timeout_handler(void * p_context)
{
count1++;
}
void LedTimer_timeout_handler(void * p_context)
{
count2++;
}
void ButtonTimer_timeout_handler(void * p_context)
{
count3++;
}
