CONFIG_ARM=y
CONFIG_BOARD_NRF52_PCA10040=y
CONFIG_SOC_FAMILY_NRF5=y
CONFIG_SOC_SERIES_NRF52X=y
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=64000000
CONFIG_CORTEX_M_SYSTICK=y
CONFIG_FLASH_SIZE=512
CONFIG_SRAM_SIZE=64
CONFIG_XIP=y

# enable uart driver
CONFIG_SERIAL=y
CONFIG_UART_NRF5=y

# enable console
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=y

# additional board options
CONFIG_GPIO_AS_PINRESET=y