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

Lib/Display/LVGL_Driver/LVGL_Driver.h

@@ -1,4 +1,9 @@
 #pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdio.h>
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
@@ -22,4 +27,9 @@ void example_lvgl_flush_cb(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t
 void example_lvgl_port_update_callback(lv_disp_drv_t *drv);
 void example_increase_lvgl_tick(void *arg);
 
-void LVGL_Init(void);                     // Call this function to initialize the screen (must be called in the main function) !!!!!
+void LVGL_Init(void);                     // Call this function to initialize the screen (must be called in the main function) !!!!!
+
+
+#ifdef __cplusplus
+}
+#endif

Lib/Display/LVGL_UI/LVGL_Example.h

@@ -1,5 +1,9 @@
 #pragma once
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include "lvgl.h"
 #include "demos/lv_demos.h"
 
@@ -16,4 +20,9 @@
 void Backlight_adjustment_event_cb(lv_event_t * e);
 
 void Lvgl_Example1(void);
-void LVGL_Backlight_adjustment(uint8_t Backlight);
+void LVGL_Backlight_adjustment(uint8_t Backlight);
+
+
+#ifdef __cplusplus
+}
+#endif

Lib/Display/LVGL_UI/LVGL_Music.h

@@ -1,4 +1,9 @@
 #pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*********************
  *      INCLUDES
  *********************/
@@ -67,3 +72,7 @@ void LVGL_Resume_Music();
 void LVGL_Pause_Music();  
 void LVGL_Play_Music(uint32_t ID);  
 void LVGL_volume_adjustment(uint8_t Volume);
+
+#ifdef __cplusplus
+}
+#endif

Lib/Display/Touch_Driver/CST816.h

@@ -4,6 +4,12 @@
  */
 
 #pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
 #include <inttypes.h>
 #include <stdio.h>
 #include <string.h>
@@ -68,3 +74,7 @@ esp_err_t esp_lcd_touch_new_i2c_cst816s(const esp_lcd_panel_io_handle_t io, cons
 extern esp_lcd_touch_handle_t tp;
 
 void Touch_Init(void);
+
+#ifdef __cplusplus
+}
+#endif