clean2:
-$(RM) $(CC_DEPS)$(C++_DEPS)$(C_UPPER_DEPS)$(CXX_DEPS)$(SECONDARY_FLASH)$(SECONDARY_SIZE)$(ASM_DEPS)$(S_UPPER_DEPS)$(C_DEPS)$(CPP_DEPS)
-$(RM) $(OBJS) *.elf
-@echo ' '
*.elf: $(wildcard ../board/linker_scripts/link.lds)