button_leds_init() function is clashing with mpu9250

[satish]

Hi,

I'm working on nrf51822 and mpu9250 imu sensor.i'm facing a problem,my buttons function i.e buttons leds int and mpu9250 are not working together either one is working at a time,i'm unable to find the problem.please help me..

thanks in advance.

[satish]

Hi Martin,sorry for the late reply below is code i'm using to initiate the GPIOTE for MPU

            ret_code_t err_code;
	err_code = nrf_drv_gpiote_is_init();
	APP_ERROR_CHECK(err_code);
	nrf_drv_gpiote_in_config_t config = GPIOTE_CONFIG_IN_SENSE_HITOLO(false); 
	config.pull = NRF_GPIO_PIN_PULLUP;
	err_code =	nrf_drv_gpiote_in_init(int_param->pin, &config, int_param->cb);	
	APP_ERROR_CHECK(err_code);
	nrf_drv_gpiote_in_event_enable(int_param->pin, true);

please check it and let me know if any mistakes in the above lines .... Many thanks for your cooperation.

[MartinBL]

In your code nrf_drv_gpiote_is_init() will return an error if the GPIOTE is already initialized and your application will hang or reset in APP_ERROR_CHECK(). If you do it like this:

uint32_t err_code;
if(!nrf_drv_gpiote_is_init())
{
    err_code = nrf_drv_gpiote_init();
}

as is suggested here you will simply skip the initialization if it is already done before.

[satish]

Hi Martin, The changes that you suggested those are working for me. thanks for your support.