程序下载成功可以用，但是 KEIL 无法下载

.gitignore

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+# Keil MDK - Build artifacts
+*.o
+*.d
+*.crf
+*.axf
+*.hex
+*.map
+*.lnp
+*.sct
+*.dep
+*.build_log.htm
+*.htm
+*.log
+*.lst
+*.dep
+
+# Keil MDK - IDE settings (user-specific)
+*.uvoptx
+*.uvguix.*
+
+# Keil MDK - Debug config
+*.dbgconf
+
+# Keil MDK - RTE auto-generated
+MDK-ARM/RTE/
+
+# STM32CubeMX (keep .ioc, it's the project source)
+# *.ioc
+
+# Visual Studio / IDE
+.vs/
+*.suo
+*.njsproj
+*.sln
+*.suo
+*.user
+*.opensdf
+*.cache
+
+# Windows
+Thumbs.db
+ehthumbs.db
+*.tmp
+*.temp
+
+# Linux / Mac
+.DS_Store