NRF_ERROR_INVALID_STATE on nrf_drv_gpiote_in_init

[Tarik]

Hi,

My code always throws "NRF_ERROR_INVALID_STATE" error and reset in nrf_drv_gpiote_in_init.

I tried many pins all of them are free and not used:

#define BUTTONS_NUMBER 4

/*#define BUTTON_START   25
#define BUTTON_1       9
#define BUTTON_2       25
#define BUTTON_3       26
#define BUTTON_4       13
#define BUTTON_STOP    26*/
#define BUTTON_START   17
#define BUTTON_1       17
#define BUTTON_2       18
#define BUTTON_3       19
#define BUTTON_4       20
#define BUTTON_STOP    20

#define BUTTON_PULL    NRF_GPIO_PIN_PULLUP

#define BUTTONS_ACTIVE_STATE 0

#define BUTTONS_LIST { BUTTON_1, BUTTON_2, BUTTON_3, BUTTON_4 }

#define BSP_BUTTON_0   BUTTON_2
#define BSP_BUTTON_1   BUTTON_3

Any help would be much appreciated.

Thanks

[Jørgen Holmefjord]

Did you initiate the driver using nrf_drv_gpiote_init() first?

[Tarik]

yes and it always returns NRF_SUCCESS. The condition if (pin_in_use_by_gpiote(pin)) is always true which causes the problem

[Tarik]

Solved by defining 4 BSP buttons instead of the two initially defined