Assign 2 Event in single PIN

[konsang]

Hi,

I need to assign Rising edge and Falling edge event in a single pin.

I try to assign both Rising Edge and Falling Edge event into APP_EVENT_PIN.

There is a error when VERIFY_SUCCESS(err_code) in second assignment.

Is it possible to assign 2 events into single GPIO Pin ?

I need to trigger different tasks for rising and falling event. Hence, I need 2 events on the same pin.

nrfx_gpiote_in_config_t config1 = NRFX_GPIOTE_CONFIG_IN_SENSE_LOTOHI(false);
err_code = nrfx_gpiote_in_init(APP_EVENT_PIN, &config1, gpiote_event_handler);
VERIFY_SUCCESS(err_code); 
Event_address_GPIO_LOHI = nrfx_gpiote_in_event_addr_get(APP_EVENT_PIN);

nrfx_gpiote_in_config_t config2 = NRFX_GPIOTE_CONFIG_IN_SENSE_HITOLO(false);
err_code = nrfx_gpiote_in_init(APP_EVENT_PIN, &config2, gpiote_event_handler);
VERIFY_SUCCESS(err_code);
Event_address_GPIO_HILO = nrfx_gpiote_in_event_addr_get(APP_EVENT_PIN);

Please advise.

Thanks.

Br,

KonSang

[Dmitry]

Hi KonSang,

your second config overwrites the first one. You can configure GPIOTE as NRFX_GPIOTE_CONFIG_IN_SENSE_TOGGLE and check pin state in your event handler.

[konsang]

Hi, 

Event handler have latency, my application cannot have latency more than 1ms when rising edge or falling triggered.

That's the reason I need to use PPI for both rising and falling edge event.

By the way, thanks for your clarification.

Br,

KonSang