diff --git a/board/NUCLEO_STM32L496ZG/BSP/Inc/mcu_init.h b/board/NUCLEO_STM32L496ZG/BSP/Inc/mcu_init.h
index 0623a76cfdf080eca29cfcabecdd811cc4559308..9152fc91e0c52526314f5ee30eb6206f967a09fe 100644
--- a/board/NUCLEO_STM32L496ZG/BSP/Inc/mcu_init.h
+++ b/board/NUCLEO_STM32L496ZG/BSP/Inc/mcu_init.h
@@ -13,8 +13,6 @@
 #include "i2c.h"
 #include "spi.h"
 #include "tim.h"
-#include "ov2640.h"
-#include "lcd_2inch4.h"
 #include "tos_k.h"
 void board_init(void);
 void SystemClock_Config(void);
diff --git a/board/NUCLEO_STM32L496ZG/BSP/Src/main.c b/board/NUCLEO_STM32L496ZG/BSP/Src/main.c
index 6eb346ed15adbfe279e0b13facc9001e05224387..14ff70d0c639273c2009577bd0ee47f2123aa29a 100644
--- a/board/NUCLEO_STM32L496ZG/BSP/Src/main.c
+++ b/board/NUCLEO_STM32L496ZG/BSP/Src/main.c
@@ -18,7 +18,6 @@ int main(void)
 {
     board_init();
     printf("Welcome to TencentOS tiny\r\n");
-		person_detect_init();
     osKernelInitialize(); // TOS Tiny kernel initialize
     osThreadCreate(osThread(application_entry), NULL); // Create TOS Tiny task
     osKernelStart(); // Start TOS Tiny
diff --git a/board/NUCLEO_STM32L496ZG/BSP/Src/mcu_init.c b/board/NUCLEO_STM32L496ZG/BSP/Src/mcu_init.c
index 003382852015b6804581ed8ede06691bf83e4a83..9ce35a97dc592d644d7aada5cacc2918c95e1ec1 100644
--- a/board/NUCLEO_STM32L496ZG/BSP/Src/mcu_init.c
+++ b/board/NUCLEO_STM32L496ZG/BSP/Src/mcu_init.c
@@ -1,12 +1,9 @@
 #include "mcu_init.h"
 
-uint16_t camera_buffer[OV2640_PIXEL_WIDTH*OV2640_PIXEL_HEIGHT];
 uint8_t frame_flag = 0;
-uint8_t tensor_flag = 0;
 
 extern DCMI_HandleTypeDef hdcmi;
 
-
 int fputc(int ch, FILE *f)
 {
   if (ch == '\n') {
@@ -42,18 +39,6 @@ void board_init(void)
   MX_I2C1_Init();
   MX_SPI1_Init();
   MX_TIM4_Init();
-	
-	LCD_2IN4_Init();
-	OV2640_Init();
-	OV2640_RGB565_Mode();
-	OV2640_OutSize_Set(OV2640_PIXEL_WIDTH,OV2640_PIXEL_HEIGHT);
-	
-	__HAL_DCMI_DISABLE_IT(&hdcmi, DCMI_IT_LINE | DCMI_IT_VSYNC);
-	if (HAL_DCMI_Start_DMA(&hdcmi, DCMI_MODE_CONTINUOUS,  (uint32_t)camera_buffer , (OV2640_PIXEL_WIDTH*OV2640_PIXEL_HEIGHT)/2))
-	{
-		Error_Handler();
-	}
-	//setup(); //tensorflow init
 }
 
 /**