Define BOARD_CUSTOM not working in SDK12 with GCC

[Chris H.]

I can't seem to add custom pin definitions to my own board in SDK12. I use the BOARD_CUSTOM define and copied my PCA10040 header file to one call custom_board.h and my pin assignments do not change. The only warnings I get are from bad paths to the config folder which is new since moving to SDK12.

[Roger Clark]

If you are using gcc and the makefile, the definition for the board is set inside the makefile and not using a #define in a header

The SDK is slightly misleading, as it applies to all build platforms e.g. Keil and IAR as well as gcc, and each of them will have a different way to add the define.

If you add

#define BOARD_CUSTOM  

To a header that is included by the whole project, this will cause a problem, as the define for the PCA board will still be defined in the makefile.

the

-DXXX

flag for the gcc compiler (preprocessor) is the same as

#define XXX

So, you need to change the lines in the makefile which have

-DBOARD_PCA10040

to

-DBOARD_CUSTOM

This occurs in 2 places, once for the CFLAGS and once for the ASMFLAGS

[Susheel Nuguru]

Hi Chris,

I agree to your discussion that the documentation should not have mentioned #define as different compilers override these defines in the file in different ways given in the build settings. I will ask the team to remove #define and say that "you should make sure that only BOARD_CUSTOM" is defined in your build target OR your header file and no conflicting flags are set either in build target or in the header files". Does this sound ok?