Build: Add Makefile to build and run from shell

Makefile

@@ -0,0 +1,19 @@
+
+OCD_BIN=/opt/local/bin/openocd
+OCD_SCRIPTS=/opt/local/share/openocd/scripts
+OCD_BOARD=stm32f4discovery.cfg
+
+PHONY: all compile run
+
+all: compile run
+
+compile:
+	cmake --build cmake-build-debug --verbose
+
+run:
+	$(OCD_BIN) -s $(OCD_SCRIPTS) -f board/$(OCD_BOARD) \
+	-c "tcl_port disabled" \
+	-c "gdb_port disabled" \
+	-c "program ./cmake-build-debug/raw407cxx.elf" \
+	-c reset \
+	-c shutdown