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https://e2e.ti.com/support/tools/code-composer-studio-group/ccs/f/code-composer-studio-forum/1482545/cc3220sf-launchxl-cc3220sf-buttonled-not-working-causeb-by-the-retc-and-thread-value-is-unavailable
工具与软件：
在使用 tirtos_ticlang 时、retc 变量不可用
有人能帮我解决这个问题吗
您好！
这个变量在哪里、在什么上下文中、您正在尝试读取它？
是全球性的吗？
