TCP可以正常使用

MDK-ARM/build.bat

@@ -0,0 +1,19 @@
+@echo off
+setlocal
+
+set UV4=C:\Keil_v5\UV4\UV4.exe
+set PROJ=%~dp0STM32F407-Demo.uvprojx
+set LOG=%~dp0build_log.txt
+set TARGET=STM32F407-Demo
+
+"%UV4%" -r "%PROJ%" -t%TARGET% -j0 -o "%LOG%"
+set RET=%ERRORLEVEL%
+
+if %RET% equ 0 (
+    echo BUILD_OK: 0 Error(s), 0 Warning(s)
+) else (
+    echo BUILD_FAIL: exit code %RET%
+    if exist "%LOG%" type "%LOG%"
+)
+
+exit /b %RET%