Merge pull request #1380 from rousselk/arduino-due-minor-fixes

Reset ARM Cortex-M3 MCUs before flashing

boards/arduino-due/Makefile.include

@@ -35,7 +35,7 @@ export LINKFLAGS += -g3 -ggdb -std=gnu99 $(CPU_USAGE) $(FPU_USAGE) -mlittle-endi
 # linkerscript specified in cpu/Makefile.include
 export LINKFLAGS += -T$(LINKERSCRIPT)
 export OFLAGS += -O binary
-export FFLAGS += -e -w -v -b bin/$(BOARD)/$(APPLICATION).hex
+export FFLAGS += -R -e -w -v -b bin/$(BOARD)/$(APPLICATION).hex
 
 # use the nano-specs of the NewLib when available
 ifeq ($(shell $(LINK) -specs=nano.specs -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)

boards/udoo/Makefile.include

@@ -35,7 +35,7 @@ export LINKFLAGS += -g3 -ggdb -std=gnu99 $(CPU_USAGE) $(FPU_USAGE) -mlittle-endi
 # linkerscript specified in cpu/Makefile.include
 export LINKFLAGS += -T$(LINKERSCRIPT)
 export OFLAGS += -O binary
-export FFLAGS += -e -w -v -b bin/$(BOARD)/$(APPLICATION).hex
+export FFLAGS += -R -e -w -v -b bin/$(BOARD)/$(APPLICATION).hex
 
 # use the nano-specs of the NewLib when available
 ifeq ($(shell $(LINK) -specs=nano.specs -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)