diff --git a/.gitignore b/.gitignore
index 8b2716b..294a1cb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,3 +35,6 @@ DebugConfig/
 *.tra
 *~
 Thumbs.db
+
+# ---- 助手工作区状态(记忆/会话数据),不属于固件源码 ----
+.workbuddy/
diff --git a/云台/Middlewares/ST/ARM/DSP/Lib/arm_cortexM4lf_math.lib b/云台/Middlewares/ST/ARM/DSP/Lib/arm_cortexM4lf_math.lib
new file mode 100644
index 0000000..8559ef5
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diff --git a/底盘/Middlewares/ST/ARM/DSP/Lib/arm_cortexM4lf_math.lib b/底盘/Middlewares/ST/ARM/DSP/Lib/arm_cortexM4lf_math.lib
new file mode 100644
index 0000000..8559ef5
Binary files /dev/null and b/底盘/Middlewares/ST/ARM/DSP/Lib/arm_cortexM4lf_math.lib differ