Using the SDK with other boards (v0.9.2)
Using the SDK with other boards (v15.2.0)

$ grep -r BOARD_PCA10040 .
./components/boards/boards.h:#elif defined(BOARD_PCA10040)
./examples/peripheral/blinky/pca10040/s132/ses/blinky_pca10040_s132.emProject:
c_preprocessor_definitions="
BOARD_PCA10040;
BSP_DEFINES_ONLY;
CONFIG_GPIO_AS_PINRESET;
FLOAT_ABI_HARD;
INITIALIZE_USER_SECTIONS;
NO_VTOR_CONFIG;
NRF52;
NRF52832_XXAA;
NRF52_PAN_74;
NRF_SD_BLE_API_VERSION=6;
S132;
SOFTDEVICE_PRESENT;"

$ grep -r "CFLAGS += -DBOARD_PCA10040" .
./examples/peripheral/blinky/pca10040e/mbr/armgcc/Makefile:CFLAGS += -DBOARD_PCA10040