MCU_SERIES = m0 MCU_VARIANT = nrf51 MCU_SUB_VARIANT = nrf51822 SOFTDEV_VERSION = 8.0.0 LD_FILES += boards/nrf51x22_256k_16k.ld ifneq ($(SD),) FROZEN_MANIFEST ?= else MICROPY_VFS_LFS2 = 1 endif