multi-app based on nrf52sdk

Makefile

@@ -1,8 +1,8 @@
 .DEFAULT_GOAL := all
 
-APPLICATION ?= button
+APPLICATION ?= blinky
 
-PLATFORM ?= posix
+PLATFORM ?= nrf52
 TARGET_FILE ?= $(APPLICATION).elf
 
 CC = $(CROSS_COMPILE)gcc
@@ -27,6 +27,7 @@ TARGET_PACKAGE = $(patsubst %.hex,%.zip,$(TARGET_HEX))
 THIS_MAKEFILE := $(lastword $(MAKEFILE_LIST))
 
 INCLUDES += include/
+INCLUDES += include/application/$(APPLICATION)
 
 OPT = 3
 C_FLAGS += -O$(OPT) -g$(OPT)
@@ -35,7 +36,7 @@ C_FLAGS += -ffunction-sections -fdata-sections -fno-strict-aliasing
 
 LIBS += c nosys m
 
-include Makefile.$(PLATFORM)
+include config/build/$(PLATFORM)/$(APPLICATION)/Makefile.$(APPLICATION)
 
 .PHONY: all install uninstall clean distclean debug
 all: $(TARGET)