tool to send fw with usb using protbuf

tools/CMakeLists.txt

@@ -0,0 +1,20 @@
+
+# Specify the .proto file
+set(PROTO_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../proto)
+set(PROTO_FILE ${PROTO_SRC_DIR}/firmware.proto)
+
+# Specify where you want to generate the python code
+set(PYTHON_OUT_DIR ${CMAKE_CURRENT_SOURCE_DIR})
+
+# Specify the include directory
+set(PROTO_INC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../lib/nanopb/generator/proto)
+
+# Add the command to generate the python code
+add_custom_command(
+    OUTPUT ${PYTHON_OUT_DIR}/firmware_pb2.py
+    COMMAND protoc --python_out=${PYTHON_OUT_DIR} --proto_path=${PROTO_SRC_DIR}:${PROTO_INC_DIR} ${PROTO_FILE} ${PROTO_INC_DIR}/nanopb.proto
+    DEPENDS ${PROTO_FILE}
+)
+
+# Add the generated python code to a custom target
+add_custom_target(GeneratePythonProtobufCode ALL DEPENDS ${PYTHON_OUT_DIR}/firmware_pb2.py)