How to add custom button using BSP?

[sosse]

Hello,

How to ass custom button using BSP? In the default setting, there are only 4 buttons. But my custom board has more than 4 buttons. How to add more button using BSP?? I increase "BUTTONS_NUMBER" and corresponding other values also, like BUTTON_x, BSP_BUTTON_x... But think I've done right, But I got error(NRF_ERROR_INVALID_STATE) from "bsp_init".

Do I have to modify other file also?? Or there is some limit of the number of buttons. Thank you.

[Sigurd]

With a custom board you will need to modify the board files.

You can find the board files under:

\SDK_INSTALL_FOLDER\examples\bsp

When creating a new board file, simply copy the pca10028.h file, rename it, and modify it after your requirements. Then you have to modify boards.h to support your new file, and add a new define that you can specify in the Keil options to include your modified file.

[sosse]

is it something related to "NUMBER_OF_GPIO_TE = 4"??

[Sigurd]

A button press is a low power event, so you will need to increase GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS

[Ptd006]

Thank you Sigurd!  I spent over an hour trying to figure out why only 4 of my buttons worked