@echo off
setlocal

set UV4=C:\Keil_v5\UV4\UV4.exe
set PROJ=%~dp0STM32F407-Demo.uvprojx
set LOG=%~dp0download_log.txt
set TARGET=STM32F407-Demo

"%UV4%" -f "%PROJ%" -t%TARGET% -j0 -o "%LOG%"

findstr /C:"Application running" "%LOG%" >nul
if %ERRORLEVEL% equ 0 (
    echo DOWNLOAD_OK: flashed and running
    exit /b 0
)

echo DOWNLOAD_FAIL: no application-running marker in log
type "%LOG%"
exit /b 1