experimenting with adding nanopb to embedded-base

bjackson312006 · bjackson312006 · commit 4dced853242f · 2026-04-01T12:09:28.000-04:00
diff --git a/.gitmodules b/.gitmodules
@@ -2,3 +2,6 @@
 [submodule "dev/OpenOCD"]
 	path = dev/OpenOCD
 	url = https://github.com/STMicroelectronics/OpenOCD.git
+[submodule "dev/nanopb/nanopb"]
+	path = dev/nanopb/nanopb
+	url = https://github.com/nanopb/nanopb.git
diff --git a/dev/nanopb/CMakeLists.txt b/dev/nanopb/CMakeLists.txt
@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.22)
+
+set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/nanopb/extra)
+find_package(Nanopb REQUIRED)
+
+nanopb_generate_cpp(TARGET proto serverdata.proto)
+
+target_link_libraries(${CMAKE_PROJECT_NAME} proto)
diff --git a/dev/nanopb/nanopb b/dev/nanopb/nanopb
@@ -0,0 +1 @@
+Subproject commit c716db13070bfb7de03b33f5a6558528cbf8a249
diff --git a/dev/nanopb/serverdata.options b/dev/nanopb/serverdata.options
@@ -0,0 +1,2 @@
+serverdata.v2.ServerData.unit             max_size: 15
+serverdata.v2.ServerData.values           max_count: 5
diff --git a/dev/nanopb/serverdata.proto b/dev/nanopb/serverdata.proto
@@ -0,0 +1,14 @@
+syntax = "proto3";
+
+package serverdata.v2;
+
+message ServerData {
+  // ensure old type is reserved
+  reserved 1;
+  reserved "value";
+
+  string unit = 2;
+  // time since unix epoch in MICROSECONDS
+  uint64 time_us = 3;
+  repeated float values = 4;
+}

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+serverdata.v2.ServerData.unit max_size: 15`
	`2`	`+serverdata.v2.ServerData.values max_count: 5`