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]

I did exactly what you said. here is my code related the the buttons in my custom bsp header file.

#define BUTTONS_NUMBER 5
#define BUTTON_START   1
#define BUTTON_1       1
#define BUTTON_2       2
#define BUTTON_3       3
#define BUTTON_4       4
#define BUTTON_5       5
#define BUTTON_STOP    5
#define BUTTON_PULL    NRF_GPIO_PIN_PULLUP

#define BUTTONS_LIST { BUTTON_1, BUTTON_2, BUTTON_3, BUTTON_4, BUTTON_5}

#define BSP_BUTTON_0   BUTTON_1
#define BSP_BUTTON_1   BUTTON_2
#define BSP_BUTTON_2   BUTTON_3
#define BSP_BUTTON_3   BUTTON_4
#define BSP_BUTTON_4   BUTTON_5

#define BSP_BUTTON_0_MASK (1<<BSP_BUTTON_0)
#define BSP_BUTTON_1_MASK (1<<BSP_BUTTON_1)
#define BSP_BUTTON_2_MASK (1<<BSP_BUTTON_2)
#define BSP_BUTTON_3_MASK (1<<BSP_BUTTON_3)
#define BSP_BUTTON_4_MASK (1<<BSP_BUTTON_4)

//#define BUTTONS_MASK   0x000007FE
#define BUTTONS_MASK   0x0000003E

What is wrong with the code? FYI, I am using S130, 2.0.1, and ble_app_uart_c_s130 example.

I got

NRF_ERROR_INVALID_STATE (If button or GPIOTE has not been initialized). error from bsp_init.

[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