gpiote interrupt not taken

[why_do_i_need_a_user_name]

nRF51_SDK_9.0.0_2e23562 S310

/*
 * Setup the gpiote to handle pin events on the MMA8451Q INT1 pin. For the
 * accelerometer we want to detect high->low transitions in order to know
 * when accelerometer data is ready.
 */
static nrf_drv_gpiote_in_config_t m_INT1_pin_config =
{
    .is_watcher  = false,
    .hi_accuracy = true,
    .pull        = NRF_GPIO_PIN_NOPULL,
    .sense       = NRF_GPIOTE_POLARITY_HITOLO
};

There seems to be an issue around gpiote interrupts being lost when the pin config is set to low accuracy. This, I note, has been fixed in SDK 11.

We see an issue when the pin config is set to high accuracy.

I need a code sample for the workaround for this issue.

[wlgrd]

That depends on your hardware, but I guess that the floating state of your input pin is not high enough to trigger a transitional state. Say the GPIOTE IN pin is at 0.3V floating. Pulling that low wont trigger an actual low flank, but now with pullup, you'll have a transition from VCC->GND, which definately will be registered as a valid high to low transition.