Hi, I'm trying to set a button as an interrupt source. I wrote this code:
void Init(void){
pwrmng_MainStatus = PWRMNG_STS_STARTUP;
//LED
#ifdef DEBUG_LED
nrf_gpio_cfg_output(LED_R);
nrf_gpio_cfg_output(LED_G);
LED_G_TURN_OFF();
LED_R_TURN_OFF();
#endif
//Interfaccia
nrf_gpio_cfg_input(INTERFACE, NRF_GPIO_PIN_NOPULL);
//Startup Moduli
timers_init();
ble_stack_init();
gap_params_init();
conn_params_init();
//Bottone
//button_init();
IRQ_init();
}
uint32_t IRQ_init(void)
{
uint32_t err_code = NRF_SUCCESS;
nrf_drv_gpiote_in_config_t config_pin = GPIOTE_CONFIG_IN_SENSE_HITOLO(false);
if (!nrf_drv_gpiote_is_init())
{
err_code = nrf_drv_gpiote_init();
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
config_pin.pull = NRF_GPIO_PIN_NOPULL;
err_code = nrf_drv_gpiote_in_init(BUTTON_0, &config_pin, button_evt_handler);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
nrf_drv_gpiote_in_event_enable(BUTTON_0, true);
return(err_code);
}
void button_evt_handler(nrf_drv_gpiote_pin_t pin, nrf_gpiote_polarity_t action)
{
pwrmng_MainStatus = PWRMNG_STS_SHUTDOWN;
}
int main(void){
Init();
for(;;){/* CODE */}
}
err_code is 0x00 so I think that the initialization of BUTTON_0 succeeded. The problem is that I never enter button_evt_handler() pushing the button. BUTTON_0 is PIN21 in my application and I can see PIN21 changing state going to DEBUGGING->PERIPHERALS->GPIO. What's wrong with my code? I'm using softdevice S130 and nRF51822. Thanks!
