Hi
Our goal is to wake up the board from system_off and read which button wakes it up. Can you provide an example for reference?
Use ncs 2.2.0
nrf52840Dk
Hi
Our goal is to wake up the board from system_off and read which button wakes it up. Can you provide an example for reference?
Use ncs 2.2.0
nrf52840Dk
hi
I followed the steps to test, but the result is a failure. I attach main.c and log for your reference. Am I missing any steps?
Can you test on nrf52840 dk? And give me suggestions
/*
* Copyright (c) 2019 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdio.h>
#include <zephyr/kernel.h>
#include <zephyr/device.h>
#include <zephyr/init.h>
#include <zephyr/pm/pm.h>
#include <zephyr/pm/device.h>
#include <zephyr/pm/policy.h>
#include <soc.h>
#include "retained.h"
#include <hal/nrf_gpio.h>
#define BUSY_WAIT_S 2U
#define SLEEP_S 2U
#if CONFIG_LOG
#include <logging/log.h>
LOG_MODULE_REGISTER(WAKEUP, LOG_LEVEL_DBG);
#endif
static void print_wakeup_source(void)
{
if (nrf_gpio_pin_latch_get(NRF_DT_GPIOS_TO_PSEL(DT_ALIAS(sw2), gpios))) {
LOG_DBG("BUTTON3 woke me up!");
nrf_gpio_pin_latch_clear(NRF_DT_GPIOS_TO_PSEL(DT_ALIAS(sw2), gpios));
}
if (nrf_gpio_pin_latch_get(NRF_DT_GPIOS_TO_PSEL(DT_ALIAS(sw3), gpios))) {
LOG_DBG("BUTTON4 woke me up!");
nrf_gpio_pin_latch_clear(NRF_DT_GPIOS_TO_PSEL(DT_ALIAS(sw3), gpios));
}
}
void main(void)
{
int rc;
const struct device *const cons = DEVICE_DT_GET(DT_CHOSEN(zephyr_console));
if (!device_is_ready(cons)) {
LOG_DBG("%s: device not ready.\n", cons->name);
return;
}
LOG_DBG("\n%s system off demo\n", CONFIG_BOARD);
print_wakeup_source();
/* Configure to generate PORT event (wakeup) on button 3 or 4 press. */
nrf_gpio_cfg_input(NRF_DT_GPIOS_TO_PSEL(DT_ALIAS(sw2), gpios),
NRF_GPIO_PIN_PULLUP);
nrf_gpio_cfg_sense_set(NRF_DT_GPIOS_TO_PSEL(DT_ALIAS(sw2), gpios),
NRF_GPIO_PIN_SENSE_LOW);
nrf_gpio_cfg_input(NRF_DT_GPIOS_TO_PSEL(DT_ALIAS(sw3), gpios),
NRF_GPIO_PIN_PULLUP);
nrf_gpio_cfg_sense_set(NRF_DT_GPIOS_TO_PSEL(DT_ALIAS(sw3), gpios),
NRF_GPIO_PIN_SENSE_LOW);
LOG_DBG("Busy-wait %u s\n", BUSY_WAIT_S);
k_busy_wait(BUSY_WAIT_S * USEC_PER_SEC);
k_sleep(K_SECONDS(SLEEP_S));
rc = pm_device_action_run(cons, PM_DEVICE_ACTION_RESUME);
LOG_DBG("Entering system off; press BUTTON1 or BUTTON2 to restart\n");
if (IS_ENABLED(CONFIG_APP_RETENTION)) {
/* Update the retained state */
retained.off_count += 1;
retained_update();
}
/* Above we disabled entry to deep sleep based on duration of
* controlled delay. Here we need to override that, then
* force entry to deep sleep on any delay.
*/
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(K_SECONDS(SLEEP_S));
LOG_DBG("ERROR: System off failed\n");
while (true) {
/* spin to avoid fall-off behavior */
}
}