Hi to all!
I'm trying to use the same GPIO to wake up the nrf52810 from system off and also use it to execute some functions. I have this code that is based on the example from this link: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.0.2/zephyr/samples/boards/nrf/system_off/README.html
// function to power off
static void power_off_system() {
/* Configure to generate PORT event (wakeup) on button 1 press. */
nrf_gpio_cfg_input(btn.pin, NRF_GPIO_PIN_PULLUP);
nrf_gpio_cfg_sense_set(btn.pin, NRF_GPIO_PIN_SENSE_LOW);
printk("Pwering off device\n");
pm_state_force(0u, &(struct pm_state_info){PM_STATE_SOFT_OFF, 0, 0});
/* Now we need to go sleep. This will let the idle thread runs and
* the pm subsystem will use the forced state. To confirm that the
* forced state is used, lets set the same timeout used previously.
*/
// k_sleep(2);
k_msleep(2000);
}
/* Prevent deep sleep (system off) from being entered on long timeouts
* or `K_FOREVER` due to the default residency policy.
*
* This has to be done before anything tries to sleep, which means
* before the threading system starts up between PRE_KERNEL_2 and
* POST_KERNEL. Do it at the start of PRE_KERNEL_2.
*/
static int disable_ds_1(const struct device *dev)
{
ARG_UNUSED(dev);
pm_policy_state_lock_get(PM_STATE_SOFT_OFF);
return 0;
}
SYS_INIT(disable_ds_1, PRE_KERNEL_2, 0);
This is executed when long press the button. Then in the wake up, it works but the button has some strange behavior like it us pulsed 2 times at the same time. The button is configured as an interrupt that enable a timer to test if is a long press or a simple press.
This is the configuration of the GPIO to use it as an interrupt:
gpio_init_callback(&button_cb_data, button_pressed, BIT(btn.pin)); gpio_add_callback(btn.port, &button_cb_data);
Also, there is a way to start the nrf with system off and wake it up with a long press?
Best regards
