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.

[MartinBL]

1. Can you post your code?
2. Do you use timers or GPIOTE to read from your MPU?

[satish]

Hi Martin thanks for the reply, we are using both timer and GPIOTE (Interrupt) to read from the mpu9250.

[MartinBL]

The button/led module uses the app_button library which in turn uses the GPIOTE library to control the buttons. Could it be that when you configure your MPU you "overwrite" the Button Library's GPIOTE settings? Or that you initiate the GPIOTE library twice which APP_GPIOTE_INI() doesn't allow?

[satish]

Hello Martin. Yes the issue is that GPIOTE library is getting initiated twice. What would be the best solution to this issue.

Thanks for your reply.

[MartinBL]

How do you initiate GPIOTE for use with your MPU? Maybe you can just skip the init functions and configure the GPIOTE like described here?