GPIOTE input pins dont work

[LeonardPak]

Hello,

I use NRF52810 with SDK 14.2.0 and softdevice 112. I need to use 7 input pins,  but if I config more than 3 pins, all signals disappear.

GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS is setted to 7.
My configuration for each pins is like below:
	/**< INPUT. */
	nrf_drv_gpiote_in_config_t config_pwr = GPIOTE_CONFIG_IN_SENSE_TOGGLE(false);
	// BTN_PWR
	err_code = nrf_drv_gpiote_in_init(BTN_PWR, &config_pwr, PIN_EVT_Handler);
	APP_ERROR_CHECK(err_code);
	nrf_drv_gpiote_in_event_enable(BTN_PWR, true);

[Edvin]

Hello,

 

but if I config more than 3 pins, all signals disappear.

 It sounds like your error handler catches something. Have you tried to debug? 

Probably one of your APP_ERROR_CHECK(err_code) receives an err_code != 0. Turn off optimization to  be able to see the value of err_code while debugging, and set breakpoints on APP_ERROR_CHECK(). Which one has an err_code != 0?

(NRF_SUCCESS = 0)

[LeonardPak]

err_code = 0 always. I have found than it doesnt connect with number of pins. So, if i config some pin (for example, 31), response of  GPIOTE_IRQHandler will disappear. State in IN register is toggled, but CNF->SENS  doesnt react

[Edvin]

How about your pullup/down settings on the input pins? How do you trigger the pins? The thing that you use to trigger them, does it pull up or down?

[LeonardPak]

Input pin has external pullup, no pullup settings in code. It switche like this ESE22MV21 . And it pulls down.

[Edvin]

What is your GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS defined to in sdk_config.h?

And do you have logging enabled? Can you please try to define DEBUG in your preprocessor defines, and monitor the log? Does the log say anything?

BR,

Edvin

[LeonardPak]

What do you mean by logging?

// <o> GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS - Number of lower power input pins 
#ifndef GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS
#define GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS 8
#endif

[Edvin]

If you use one of the examples with BLE, then you probably see some calls to NRF_LOG_INFO(); in the project, do you?

What is the following defines set to in your sdk_config.h:

NRF_LOG_ENABLED
NRF_LOG_BACKEND_UART
NRF_LOG_BACKEND_RTT