About APP_BUTTON_INIT

[mansfield]

I use ble_app_uart demo of pca1001 and my SDK version is 5.2.0. I want to use APP_BUTTON_INIT to handle a button event. So I changed the buttons_init(void) like this:

static void buttons_init(void) { static app_button_cfg_t buttons[] = { {KEY_START, false, BUTTON_PULL, key_event_handler}, };

APP_BUTTON_INIT(buttons, sizeof(buttons) / sizeof(buttons[0]), BUTTON_DETECTION_DELAY, false);

}

But it does't work. It run away once reach buttons_init().

[mansfield]

Thank you! I added the debug function and found the error_code is 8, and the line_num points to APP_BUTTON_INIT

[Håkon Alseth]

Have you initialized library "app_gpiote" before using app_button? You should call this function before initing app button: static void gpiote_init(void) { APP_GPIOTE_INIT(APP_GPIOTE_MAX_USERS); }