1. 进一步拓展了语音识别，目前可以从sd卡导入模型，避免了model文件占用flash分区大小

2. 进一步修改了语音识别，关闭了关键词唤醒功能，只保留了指令识别功能
3. 构建了业务层的基本框架(增加了底层驱动对于的C++兼容)，业务代码采用C++编写，启用了RTTI(运行时类型识别)

Lib/Display/LCD_Driver/ST77916.h

@@ -1,4 +1,9 @@
 #pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include "esp_err.h"
 #include "esp_log.h"
 #include <stdio.h>
@@ -68,3 +73,8 @@ void LCD_addWindow(uint16_t Xstart, uint16_t Ystart, uint16_t Xend, uint16_t Yen
 
 void Backlight_Init(void);                             // Initialize the LCD backlight, which has been called in the LCD_Init function, ignore it                                                         
 void Set_Backlight(uint8_t Light);                   // Call this function to adjust the brightness of the backlight. The value of the parameter Light ranges from 0 to 100
+
+
+#ifdef __cplusplus
+}
+#endif