Add missing makefile

tests/test_midi/Makefile

@@ -0,0 +1,40 @@
+# The TARGET variable determines what target system the application is 
+# compiled for. It either refers to an XN file in the source directories
+# or a valid argument for the --target option when compiling.
+
+ifeq ($(CONFIG), xs2)
+    TARGET = XCORE-200-EXPLORER
+endif
+ifeq ($(CONFIG), xs3)
+    TARGET = XCORE-AI-EXPLORER
+else
+	TARGET = XCORE-AI-EXPLORER
+endif
+
+# The APP_NAME variable determines the name of the final .xe file. It should
+# not include the .xe postfix. If left blank the name will default to 
+# the project name
+
+APP_NAME =
+
+# The flags passed to xcc when building the application
+# You can also set the following to override flags for a particular language:
+#
+#    XCC_XC_FLAGS, XCC_C_FLAGS, XCC_ASM_FLAGS, XCC_CPP_FLAGS
+#
+# If the variable XCC_MAP_FLAGS is set it overrides the flags passed to
+# xcc for the final link (mapping) stage.
+XCC_FLAGS_xs2 = $(EXTRA_BUILD_FLAGS) -O2 -g
+XCC_FLAGS_xs3 = $(EXTRA_BUILD_FLAGS) -O2 -g
+XCC_FLAGS_LOOPBACK = $(EXTRA_BUILD_FLAGS) -O2 -g -DMIDI_LOOPBACK=1
+
+# The USED_MODULES variable lists other module used by the application.
+USED_MODULES = lib_xua
+
+
+#=============================================================================
+# The following part of the Makefile includes the common build infrastructure
+# for compiling XMOS applications. You should not need to edit below here.
+
+XMOS_MAKE_PATH ?= ../..
+include $(XMOS_MAKE_PATH)/xcommon/module_xcommon/build/Makefile.common