diff --git a/Power_Pico/BSP/BL24C02/BL24C02.c b/Power_Pico/BSP/BL24C02/BL24C02.c
index b3174f2..b841536 100644
--- a/Power_Pico/BSP/BL24C02/BL24C02.c
+++ b/Power_Pico/BSP/BL24C02/BL24C02.c
@@ -1,6 +1,13 @@
 #include "BL24C02.h"
 #include "i2c.h"
 
+SysSettings_T sys_settings = {
+	.backlight_level = 80,
+	.key_sound_enable = 1,
+	.language_select = 0,
+	.rotation = 0
+};
+
 static void BL24C02_Write(uint8_t addr, uint16_t length, uint8_t buff[])
 {
 	HAL_I2C_Mem_Write(&hi2c1, BL24C02_ADDRESS<<1, addr, I2C_MEMADD_SIZE_8BIT, buff, length, 10);
diff --git a/Power_Pico/BSP/BL24C02/BL24C02.h b/Power_Pico/BSP/BL24C02/BL24C02.h
index f722e97..ddce89e 100644
--- a/Power_Pico/BSP/BL24C02/BL24C02.h
+++ b/Power_Pico/BSP/BL24C02/BL24C02.h
@@ -5,6 +5,15 @@
 
 #define BL24C02_ADDRESS	0x50
 
+typedef struct {
+	uint8_t  backlight_level;   // 0-100
+	uint8_t  key_sound_enable;  // 0:disable, 1:enable
+	uint8_t  language_select;   // 0:English, 1:Chinese
+	uint16_t  rotation;		    // 0, 90, 180, 270
+} SysSettings_T;
+
+extern SysSettings_T sys_settings;
+
 uint8_t EEPROM_Check(void);
 uint8_t SettingSave(uint8_t *buf, uint8_t addr, uint8_t lenth);
 uint8_t SettingGet(uint8_t *buf, uint8_t addr, uint8_t lenth);
diff --git a/Power_Pico/BSP/LCD/lcd.c b/Power_Pico/BSP/LCD/lcd.c
index fd528d7..9cc3a3a 100644
--- a/Power_Pico/BSP/LCD/lcd.c
+++ b/Power_Pico/BSP/LCD/lcd.c
@@ -15,7 +15,7 @@ extern osSemaphoreId_t DMA_SemaphoreHandle;
 void LCD_Fill(u16 xsta,u16 ysta,u16 xend,u16 yend,u16 color)
 {
 	u16 i,j;
-	LCD_Address_Set(xsta,ysta+OFFSET_Y,xend-1,yend-1+OFFSET_Y);//设置显示范围
+	LCD_Address_Set(xsta+OFFSET_X, ysta+OFFSET_Y,xend-1+OFFSET_X, yend-1+OFFSET_Y);//设置显示范围
 	for(i=ysta;i<yend;i++)
 	{
 		for(j=xsta;j<xend;j++)
@@ -39,7 +39,7 @@ void LCD_Color_Render(u16 xsta,u16 ysta,u16 xend,u16 yend,u16 *color_p)
 	height = yend-ysta+1;
 	uint32_t size = width * height;
 
-	LCD_Address_Set(xsta,ysta+OFFSET_Y,xend,yend+OFFSET_Y);
+	LCD_Address_Set(xsta+OFFSET_X, ysta+OFFSET_Y, xend+OFFSET_X, yend+OFFSET_Y);
 
 	hspi2.Init.DataSize = SPI_DATASIZE_16BIT;
 	hspi2.Instance->CR1|=SPI_CR1_DFF;
diff --git a/Power_Pico/BSP/LCD/lcd_init.c b/Power_Pico/BSP/LCD/lcd_init.c
index e914f76..dcfb97b 100644
--- a/Power_Pico/BSP/LCD/lcd_init.c
+++ b/Power_Pico/BSP/LCD/lcd_init.c
@@ -184,24 +184,32 @@ void LCD_ST7789_SleepOut(void)
 	������ݣ�rotation 0, 90, 180, 270
 	����ֵ��  ��
 ******************************************************************************/
-void LCD_SetRotation(uint8_t rotation) {
+void LCD_SetRotation(uint16_t rotation) {
 	LCD_WR_REG(0x36); // Memory Data Access Control
 	switch(rotation) {
 		case 0:
+			OFFSET_X = 0;
 			OFFSET_Y = 0;
 			LCD_WR_DATA8(0x00);
 			break;
 		case 180:
+			OFFSET_X = 0;
 			OFFSET_Y = 80;
 			LCD_WR_DATA8(0xC0);
 			break;
 		case 90:
+			OFFSET_X = 0;
+			OFFSET_Y = 0;
 			LCD_WR_DATA8(0x70);
 			break;
 		case 270:
+			OFFSET_X = 80;
+			OFFSET_Y = 0;
 			LCD_WR_DATA8(0xA0);
 			break;
 		default:
+			OFFSET_X = 0;
+			OFFSET_Y = 0;
 			LCD_WR_DATA8(0x00);
 			break;
 	}
diff --git a/Power_Pico/BSP/LCD/lcd_init.h b/Power_Pico/BSP/LCD/lcd_init.h
index 88117bc..5b8fd90 100644
--- a/Power_Pico/BSP/LCD/lcd_init.h
+++ b/Power_Pico/BSP/LCD/lcd_init.h
@@ -59,6 +59,8 @@ void LCD_Close_Light(void);
 void LCD_ST7789_SleepIn(void);
 void LCD_ST7789_SleepOut(void);
 void LCD_Open_Light(void);
+void LCD_SetRotation(uint16_t rotation);
+
 #endif
 
 
diff --git a/Power_Pico/Middlewares/LVGL/porting/lv_port_disp.c b/Power_Pico/Middlewares/LVGL/porting/lv_port_disp.c
index 2fd34ff..2086765 100644
--- a/Power_Pico/Middlewares/LVGL/porting/lv_port_disp.c
+++ b/Power_Pico/Middlewares/LVGL/porting/lv_port_disp.c
@@ -134,10 +134,12 @@ void disp_disable_update(void)
  *'lv_display_flush_ready()' has to be called when it's finished.*/
 static void disp_flush(lv_display_t * disp_drv, const lv_area_t * area, uint8_t * px_map)
 {
-    lv_display_rotation_t rotation = lv_display_get_rotation(disp_drv);
+    static lv_display_rotation_t last_rotation = LV_DISPLAY_ROTATION_0;
+    lv_display_rotation_t current_rotation = lv_display_get_rotation(disp_drv);
     lv_area_t rotated_area;
-    if(rotation != LV_DISPLAY_ROTATION_0) {
-        LCD_SetRotation(rotation * 90);
+    if (current_rotation != last_rotation) {
+        LCD_SetRotation(current_rotation * 90); // 仅在旋转状态改变时调用
+        last_rotation = current_rotation;      // 更新上次状态
     }
     if(disp_flush_enabled) {
         LCD_Color_Render(area->x1,area->y1,area->x2,area->y2, (uint16_t *)px_map);
diff --git a/Power_Pico/User/GUI/ui.c b/Power_Pico/User/GUI/ui.c
index 2dbe5ac..43d8eab 100644
--- a/Power_Pico/User/GUI/ui.c
+++ b/Power_Pico/User/GUI/ui.c
@@ -1,6 +1,7 @@
 // LVGL version: 9.2
 // Project name: PowerPico
 
+#include "BL24C02.h" // system settings
 #include "./ui.h"
 #include "./screens/ui_mainPage.h"
 #include "./screens/ui_chartPage.h"
@@ -61,7 +62,7 @@ void ui_init(void)
         PageManager_register(&pages[i]);
     }
     PageManager_load_init_screen();
-    lv_display_set_rotation(dispp, LV_DISP_ROTATION_180);
+    lv_display_set_rotation(dispp, sys_settings.rotation / 90);
 
     //timer
     // lv_timer_t * ui_MainTimer = lv_timer_create(main_timer, 1000,  NULL);
diff --git a/Power_Pico/User/Tasks/Src/user_HardwareInitTask.c b/Power_Pico/User/Tasks/Src/user_HardwareInitTask.c
index a9f3cb0..fc86491 100644
--- a/Power_Pico/User/Tasks/Src/user_HardwareInitTask.c
+++ b/Power_Pico/User/Tasks/Src/user_HardwareInitTask.c
@@ -18,6 +18,7 @@
 #include "gate.h"
 #include "data_queue.h"
 #include "fusb302_dev.h"
+#include "BL24C02.h" // settings
 
 // ui
 #include "lvgl.h"
@@ -82,6 +83,12 @@ void HardwareInitTask(void *argument)
     // key
     Key_Port_Init();
 
+    // system settings from eeprom
+    sys_settings.backlight_level = 80;
+    sys_settings.key_sound_enable = 0;
+    sys_settings.language_select = 0;
+    sys_settings.rotation = 270;
+
     // FUSB CC pin dis connect
     HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_RESET);