重构手环软件架构：实现动态挂载前后台 App 框架，解耦拆分源文件，并引入统一日志宏 xtell.h

App/xtell.h

@@ -0,0 +1,24 @@
+#ifndef __XTELL_H__
+#define __XTELL_H__
+
+#include "config.h"
+
+// 全局调试日志开关
+#define XTELL_DEBUG_ENABLE
+
+// 声明底层串口发送函数 (由 system.c 提供)
+extern void Uart_SendString(char *p);
+extern void Uart_SendHex8(u8 val);
+extern void Uart_SendHex32(u32 val);
+
+#ifdef XTELL_DEBUG_ENABLE
+    #define XTELL_LOG(s)       Uart_SendString(s)
+    #define XTELL_LOG_HEX8(v)  Uart_SendHex8(v)
+    #define XTELL_LOG_HEX32(v) Uart_SendHex32(v)
+#else
+    #define XTELL_LOG(s)
+    #define XTELL_LOG_HEX8(v)
+    #define XTELL_LOG_HEX32(v)
+#endif
+
+#endif // __XTELL_H__