Hi, I am using nrf52832 development kit. MCU is waking up with two buttons and I put MCU to system off mode after successful data exchange or timeout. Init settings are like below:
#define PIN_UNLOCK_DOOR BSP_BUTTON_0
#define PIN_LOCK_DOOR BSP_BUTTON_1
static void buttons_init(void)
{
ret_code_t err_code;
//Initialize gpiote module
err_code = nrf_drv_gpiote_init();
APP_ERROR_CHECK(err_code);
//Configure sense input pin to enable wakeup and interrupt on button press.
nrf_drv_gpiote_in_config_t in_config = GPIOTE_CONFIG_IN_SENSE_HITOLO(false);
in_config.pull = NRF_GPIO_PIN_PULLUP;
err_code = nrf_drv_gpiote_in_init(PIN_UNLOCK_DOOR, &in_config, in_pin_handler);
APP_ERROR_CHECK(err_code);
nrf_drv_gpiote_in_event_enable(PIN_UNLOCK_DOOR, true);
err_code = nrf_drv_gpiote_in_init(PIN_LOCK_DOOR, &in_config, in_pin_handler);
APP_ERROR_CHECK(err_code);
nrf_drv_gpiote_in_event_enable(PIN_LOCK_DOOR, true);
}
To go to sleep I have to wait until user takes off his/her finger from button. In main function inside the while loop I use this code:
for(;;)
{
if (goToSleepFlag == true && sleepStartedFlag == false &&
nrf_gpio_pin_read(PIN_LOCK_DOOR) == 1 &&
nrf_gpio_pin_read(PIN_UNLOCK_DOOR) == 1)
{
sleepStartedFlag = true;
sd_power_system_off();
}
else
{
idle_state_handle();
}
}
If user takes off his finger from button before goToSleepFlag becomes true it is working well and goes to sleep. goToSleepFlag becomes true after 2 seconds and when I press button more than two seconds then take off my finger it can't go to sleep. After pressing long time I release the button and press multiple times, it goes to interrupt handler every times but nrf_gpio_pin_read function can't detect pin is 1. I checked voltage and its 2.9 V but nrf_gpio_pin_read is still giving 0.
When I put there a log message it can detect pin state change and go to sleep when I release button, code is like this:
if (goToSleepFlag == true && sleepStartedFlag == false &&
nrf_gpio_pin_read(PIN_LOCK_DOOR) == 1 &&
nrf_gpio_pin_read(PIN_UNLOCK_DOOR) == 1)
{
sleepStartedFlag = true;
sd_power_system_off();
}
else
{
idle_state_handle();
}
if (goToSleepFlag == true && sleepStartedFlag == false)
{
NRF_LOG_INFO("a");
}
I put also __nop("nop") or bsp_board_led_on(BSP_BOARD_LED_3); instead of NRF_LOG but those didn't work. How can I solve this problem? Thanks.
