Added black magic probe flashing support to the example code makefile.

examples/stm32/Makefile.include

@@ -24,6 +24,7 @@ CC		= $(PREFIX)-gcc
 LD		= $(PREFIX)-gcc
 OBJCOPY		= $(PREFIX)-objcopy
 OBJDUMP		= $(PREFIX)-objdump
+GDB		= $(PREFIX)-gdb
 # Uncomment this line if you want to use the installed (not local) library.
 # TOOLCHAIN_DIR = `dirname \`which $(CC)\``/../$(PREFIX)
 TOOLCHAIN_DIR   = ../../../..
@@ -38,6 +39,9 @@ OBJS		+= $(BINARY).o
 OOCD		?= openocd
 OOCD_INTERFACE	?= flossjtag
 OOCD_BOARD	?= olimex_stm32_h103
+# Black magic probe specific variables
+# Set the BMP_PORT to a serial port and then BMP is used for flashing
+BMP_PORT        ?=
 
 # Be silent per default, but 'make V=1' will show all compiler calls.
 ifneq ($(V),1)
@@ -92,6 +96,7 @@ clean:
 	$(Q)rm -f *.srec
 	$(Q)rm -f *.list
 
+ifeq ($(BMP_PORT),)
 ifeq ($(OOCD_SERIAL),)
 %.flash: %.hex
 	@printf "  FLASH   $<\n"
@@ -116,6 +121,14 @@ else
 		    -c "reset" \
 		    -c "shutdown" $(NULL)
 endif
+else
+%.flash: %.elf
+	@echo "  GDB   $(*).elf (flash)"
+	$(Q)$(GDB) --batch \
+		-ex 'target extended-remote $(BMP_PORT)' \
+		-x $(TOOLCHAIN_DIR)/scripts/black_magic_probe_flash.scr \
+		$(*).elf
+endif
 
 .PHONY: images clean