Hello,
I want to know what is the correct way to use GPIOTE while my softdevice is running. I have referred the example of pin_change_interrupt that is provided with SDK12.1, which runs as expected, but if I am writing that code to my main.c which has softdevice running, my device just freezes.
Also, in my current custom code, I am using app_uart as the basic reference and I am already using timer1 in main.c.
I need to add another information. I was trying to add timer2 event handler also in the code. But if i add either timer2 or gpiote event handler, my code is freezed.
Is there like a limitation on interrupts or is there any interrupt priority to be set? How do I debug this?
Edit: Relevant code lines:
void in_pin_handler(nrf_drv_gpiote_pin_t pin, nrf_gpiote_polarity_t action)
{
nrf_drv_gpiote_out_toggle(PIN_OUT);
}
static void gpio_init(void)
{
ret_code_t err_code;
if (!nrf_drv_gpiote_is_init())
{
err_code = nrf_drv_gpiote_init();
APP_ERROR_CHECK(err_code);
}
nrf_drv_gpiote_out_config_t out_config = GPIOTE_CONFIG_OUT_SIMPLE(false);
err_code = nrf_drv_gpiote_out_init(PIN_OUT, &out_config);
APP_ERROR_CHECK(err_code);
nrf_drv_gpiote_in_config_t in_config = GPIOTE_CONFIG_IN_SENSE_TOGGLE(true);
in_config.pull = NRF_GPIO_PIN_PULLUP;
err_code = nrf_drv_gpiote_in_init(PIN_IN, &in_config, in_pin_handler);
APP_ERROR_CHECK(err_code);
nrf_drv_gpiote_in_event_enable(PIN_IN, true);
}
int main(void)
{
uint32_t err_code;
// Initialize.
APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
uart_init();
bool erase_bonds;
buttons_leds_init(&erase_bonds);
indicators_init();
gpio_init();
ble_stack_init();
gap_params_init();
services_init();
advertising_init();
conn_params_init();
err_code = nrf_drv_rng_init(NULL);
APP_ERROR_CHECK(err_code);
printf("\r\nUART Start!\r\n");
err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
for (;; )
{
power_manage();
}
}
Edit: If I keep the input pin grounded, the BLE activity is stopped, If the input pin is pulled up BLE activity resumes. I am aware the gpio event handler will be called if the input pin toggles state. But the output pin never glows. Input pin is P0.21.
