Merge pull request #2134 from clhenry/non-bus-powered-re-enumeration

Non-bus-powered MSP430 support.

3 files changed, 67 insertions, 0 deletions

diff --git a/examples/build_system/cmake/cpu/msp430.cmake b/examples/build_system/cmake/cpu/msp430.cmake
new file mode 100644
index 000000000..b4b47a2e8
--- /dev/null
+++ b/examples/build_system/cmake/cpu/msp430.cmake
@@ -0,0 +1,7 @@
+if (TOOLCHAIN STREQUAL "gcc")
+  set(FREERTOS_PORT GCC_MSP430F449 CACHE INTERNAL "")
+
+elseif (TOOLCHAIN STREQUAL "iar")
+  set(FREERTOS_PORT IAR_MSP430 CACHE INTERNAL "")
+
+endif ()
diff --git a/examples/build_system/cmake/toolchain/msp430_gcc.cmake b/examples/build_system/cmake/toolchain/msp430_gcc.cmake
new file mode 100644
index 000000000..6291ce5a4
--- /dev/null
+++ b/examples/build_system/cmake/toolchain/msp430_gcc.cmake
@@ -0,0 +1,52 @@
+set(CMAKE_SYSTEM_NAME Generic)
+
+if (NOT DEFINED CMAKE_C_COMPILER)
+  set(CMAKE_C_COMPILER "msp430-elf-gcc")
+endif ()
+
+if (NOT DEFINED CMAKE_CXX_COMPILER)
+  set(CMAKE_CXX_COMPILER "msp430-elf-g++")
+endif ()
+
+set(CMAKE_ASM_COMPILER ${CMAKE_C_COMPILER})
+
+set(CMAKE_SIZE "msp430-elf-size" CACHE FILEPATH "")
+set(CMAKE_OBJCOPY "msp430-elf-objcopy" CACHE FILEPATH "")
+set(CMAKE_OBJDUMP "msp430-elf-objdump" CACHE FILEPATH "")
+
+set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS FALSE)
+
+# Look for includes and libraries only in the target system prefix.
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+
+# pass TOOLCHAIN_CPU to
+set(CMAKE_TRY_COMPILE_PLATFORM_VARIABLES CMAKE_SYSTEM_PROCESSOR)
+
+include(${CMAKE_CURRENT_LIST_DIR}/../cpu/${CMAKE_SYSTEM_PROCESSOR}.cmake)
+
+# enable all possible warnings for building examples
+list(APPEND TOOLCHAIN_COMMON_FLAGS
+  -fdata-sections
+  -ffunction-sections
+  -fsingle-precision-constant
+  -fno-strict-aliasing
+  )
+
+list(APPEND TOOLCHAIN_EXE_LINKER_FLAGS
+  -Wl,--print-memory-usage
+  -Wl,--gc-sections
+  -Wl,--cref
+  )
+
+include(${CMAKE_CURRENT_LIST_DIR}/set_flags.cmake)
+
+# try_compile is cmake test compiling its own example,
+# pass -nostdlib to skip stdlib linking
+get_property(IS_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE)
+if (IS_IN_TRY_COMPILE)
+  set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -nostdlib")
+  set(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_LINK_FLAGS} -nostdlib")
+endif ()
diff --git a/examples/build_system/make/cpu/msp430.mk b/examples/build_system/make/cpu/msp430.mk
new file mode 100644
index 000000000..06340d23b
--- /dev/null
+++ b/examples/build_system/make/cpu/msp430.mk
@@ -0,0 +1,8 @@
+ifeq ($(TOOLCHAIN),gcc)
+  # nothing to add
+else ifeq ($(TOOLCHAIN),iar)
+  # nothing to add
+endif
+
+# For freeRTOS port source
+FREERTOS_PORTABLE_SRC ?= $(FREERTOS_PORTABLE_PATH)/GCC_MSP430F449