Merge pull request hathach#2069 from hathach/minor-build-system

Minor build system

Author: hathach

.idea/vcs.xml

@@ -2,6 +2,8 @@
 # Common make definition for all examples
 # ---------------------------------------
 
+TOOLCHAIN ?= gcc
+
 #-------------- TOP and CURRENT_PATH ------------
 
 # Set TOP to be the path to get from the current directory (where make was
@@ -75,6 +77,7 @@ else
 endif
 
 #-------------- Cross Compiler  ------------
+
 # Can be set by board, default to ARM GCC
 CROSS_COMPILE ?= arm-none-eabi-
 

examples/make.mk

@@ -227,14 +227,19 @@ endif
 # Jlink Interface
 JLINK_IF ?= swd
 
+# Jlink script
+define jlink_script
+halt
+loadfile $^
+r
+go
+exit
+endef
+export jlink_script
+
 # Flash using jlink
 flash-jlink: $(BUILD)/$(PROJECT).hex
-	@echo halt > $(BUILD)/$(BOARD).jlink
-	@echo r >> $(BUILD)/$(BOARD).jlink
-	@echo loadfile $^ >> $(BUILD)/$(BOARD).jlink
-	@echo r >> $(BUILD)/$(BOARD).jlink
-	@echo go >> $(BUILD)/$(BOARD).jlink
-	@echo exit >> $(BUILD)/$(BOARD).jlink
+	@echo "$$jlink_script" > $(BUILD)/$(BOARD).jlink
 	$(JLINKEXE) -device $(JLINK_DEVICE) -if $(JLINK_IF) -JTAGConf -1,-1 -speed auto -CommandFile $(BUILD)/$(BOARD).jlink
 
 # Flash STM32 MCU using stlink with STM32 Cube Programmer CLI