diff --git a/freertos/FreeRTOSConfig.h b/freertos/FreeRTOSConfig.h
index eb7f425..45f189d 100644
--- a/freertos/FreeRTOSConfig.h
+++ b/freertos/FreeRTOSConfig.h
@@ -10,7 +10,7 @@
 #define configTICK_RATE_HZ                        ( 1000 )
 #define configMAX_PRIORITIES                    ( 5 )
 #define configMINIMAL_STACK_SIZE                ( ( unsigned short ) 64 )
-#define configTOTAL_HEAP_SIZE                    ( ( size_t ) ( 72 * 1024 ) )
+#define configTOTAL_HEAP_SIZE                    ( ( size_t ) ( 48 * 1024 ) )
 #define configMAX_TASK_NAME_LEN                    ( 10 )
 #define configUSE_TRACE_FACILITY                1
 #define configUSE_16_BIT_TICKS                    0
diff --git a/hardware/gpio.c b/hardware/gpio.c
index e70280d..d55af25 100644
--- a/hardware/gpio.c
+++ b/hardware/gpio.c
@@ -7,6 +7,43 @@ unsigned char gpio_use_lcd(void) {
     return 1;
 }
 
+void digital_tube_key_config(void) {
+
+}
+
+void lcd_key_config(void) {
+    GPIO_InitTypeDef GPIO_Structure;
+    GPIO_Structure.Pin = UP_KEY_PIN;
+    GPIO_Structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+    GPIO_Structure.Mode = GPIO_MODE_INPUT;
+    GPIO_Structure.Pull = GPIO_PULLUP;
+    HAL_GPIO_Init(UP_KEY_PORT, &GPIO_Structure);
+
+    GPIO_Structure.Pin = DOWN_KEY_PIN;
+    GPIO_Structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+    GPIO_Structure.Mode = GPIO_MODE_INPUT;
+    GPIO_Structure.Pull = GPIO_PULLUP;
+    HAL_GPIO_Init(DOWN_KEY_PORT, &GPIO_Structure);
+
+    GPIO_Structure.Pin = LEFT_KEY_PIN;
+    GPIO_Structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+    GPIO_Structure.Mode = GPIO_MODE_INPUT;
+    GPIO_Structure.Pull = GPIO_PULLUP;
+    HAL_GPIO_Init(LEFT_KEY_PORT, &GPIO_Structure);
+
+    GPIO_Structure.Pin = RIGHT_KEY_PIN;
+    GPIO_Structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+    GPIO_Structure.Mode = GPIO_MODE_INPUT;
+    GPIO_Structure.Pull = GPIO_PULLUP;
+    HAL_GPIO_Init(RIGHT_KEY_PORT, &GPIO_Structure);
+
+    GPIO_Structure.Pin = CENTER_KEY_PIN;
+    GPIO_Structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+    GPIO_Structure.Mode = GPIO_MODE_INPUT;
+    GPIO_Structure.Pull = GPIO_PULLUP;
+    HAL_GPIO_Init(CENTER_KEY_PORT, &GPIO_Structure);
+}
+
 void gpio_config(void) {
     GPIO_InitTypeDef GPIO_Structure;
 
@@ -49,35 +86,7 @@ void gpio_config(void) {
     GPIO_Structure.Pull = GPIO_PULLUP;
     HAL_GPIO_Init(LCD_A0_Port, &GPIO_Structure);
 
-    GPIO_Structure.Pin = UP_KEY_PIN;
-    GPIO_Structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
-    GPIO_Structure.Mode = GPIO_MODE_INPUT;
-    GPIO_Structure.Pull = GPIO_PULLUP;
-    HAL_GPIO_Init(UP_KEY_PORT, &GPIO_Structure);
-
-    GPIO_Structure.Pin = DOWN_KEY_PIN;
-    GPIO_Structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
-    GPIO_Structure.Mode = GPIO_MODE_INPUT;
-    GPIO_Structure.Pull = GPIO_PULLUP;
-    HAL_GPIO_Init(DOWN_KEY_PORT, &GPIO_Structure);
-
-    GPIO_Structure.Pin = LEFT_KEY_PIN;
-    GPIO_Structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
-    GPIO_Structure.Mode = GPIO_MODE_INPUT;
-    GPIO_Structure.Pull = GPIO_PULLUP;
-    HAL_GPIO_Init(LEFT_KEY_PORT, &GPIO_Structure);
-
-    GPIO_Structure.Pin = RIGHT_KEY_PIN;
-    GPIO_Structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
-    GPIO_Structure.Mode = GPIO_MODE_INPUT;
-    GPIO_Structure.Pull = GPIO_PULLUP;
-    HAL_GPIO_Init(RIGHT_KEY_PORT, &GPIO_Structure);
-
-    GPIO_Structure.Pin = CENTER_KEY_PIN;
-    GPIO_Structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
-    GPIO_Structure.Mode = GPIO_MODE_INPUT;
-    GPIO_Structure.Pull = GPIO_PULLUP;
-    HAL_GPIO_Init(CENTER_KEY_PORT, &GPIO_Structure);
+    lcd_key_config();
 
     GPIO_Structure.Pin = CHG_EN_Pin;
     GPIO_Structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
diff --git a/hardware/gpio.h b/hardware/gpio.h
index a49134c..2f60956 100644
--- a/hardware/gpio.h
+++ b/hardware/gpio.h
@@ -50,6 +50,8 @@
 #define SPI_FLASH_CS_Port GPIOB
 
 unsigned char gpio_use_lcd(void);
+void lcd_key_config(void);
+void digital_tube_key_config(void);
 void gpio_config(void);
 
 #endif /* POWER_MANAGER_HARDWARE_GPIO_H_ */
diff --git a/rmfs/filesystem.c b/rmfs/filesystem.c
index e2c38a6..b7196ea 100644
--- a/rmfs/filesystem.c
+++ b/rmfs/filesystem.c
@@ -8,12 +8,18 @@
 static unsigned short used_sector = 0;
 static unsigned char filesystem_status = 0;
 
+static struct log_table_element {
+  unsigned int started_page;
+  unsigned int page_length;
+} *log_table;
+
 void filesystem_config(void) {
     unsigned char flash_sector_table[2];
     unsigned short total_sector = w25qxx_get_total_sector();
     if (total_sector < 128)
         filesystem_status = 1;
     else {
+        total_sector = total_sector - 4;
         w25qxx_read(flash_sector_table, 0x000000UL, 2);
         used_sector = ((flash_sector_table[0] << 8) | flash_sector_table[1]);
         if (used_sector > total_sector)
@@ -23,7 +29,7 @@ void filesystem_config(void) {
 
 unsigned short get_rmfs_remain(void) {
     if (filesystem_status == 0)
-        return (w25qxx_get_total_sector() - used_sector);
+        return (w25qxx_get_total_sector() - used_sector - 4);
     return 0;
 }
 
@@ -36,3 +42,9 @@ void make_rmfs_table(void) {
     w25qxx_erase_chip();
     w25qxx_write(flash_sector_table, 0x000000UL, 2);
 }
+
+void get_rmfs_log_page(unsigned short index) {
+    if (index <= used_sector) {
+    
+    }
+}
diff --git a/tasks/digital_tube.c b/tasks/digital_tube.c
index d2ae234..0b82a22 100644
--- a/tasks/digital_tube.c
+++ b/tasks/digital_tube.c
@@ -4,23 +4,30 @@
 
 #include "main.h"
 
+extern unsigned char lcd_digital_tube_check(unsigned int delay_xms);
+
 _Noreturn void digital_tube_task(void *parameters) {
     (void) parameters;
     static unsigned int running_timer_counter = 0;
     static unsigned char digital_tube_display_buffer[4] = {0};
     static mode_target_e last_mode = refresh_mode;
+    static typology_e last_typo = refresh_typology;
     iic_config();
+    digital_tube_key_config();
     tm1650_config();
     while (1) {
         running_timer_counter++;
         mode_target_e current_mode = fsm_get_mode();
-        if (last_mode != current_mode || running_timer_counter % 5 == 0) {
+        typology_e current_typo = fsm_get_typology();
+        if (last_mode != current_mode || last_typo != current_typo || running_timer_counter % 5 == 0) {
+            unsigned char current_status = (current_mode & 0x03) | ((current_typo & 0x03) << 2);
             digital_tube_display_buffer[0] = 0;
-            digital_tube_display_buffer[1] = current_mode + (16 * (running_timer_counter % 10 == 0));
+            digital_tube_display_buffer[1] = current_status + (16 * (running_timer_counter % 10 == 0));
             tm1650_write_data(1, digital_tube_display_buffer);
         }
+        last_typo = current_typo;
         last_mode = current_mode;
-        HAL_IWDG_Refresh(&hiwdg1);
-        delayms(100);
+        if (lcd_digital_tube_check(100) == 1)
+            vTaskDelete(NULL);
     }
 }
diff --git a/tasks/gui.c b/tasks/gui.c
index d6f681d..e9e5bdc 100644
--- a/tasks/gui.c
+++ b/tasks/gui.c
@@ -6,8 +6,10 @@
 #include "gui.h"
 
 extern volatile unsigned char lcd_frame_buffer[128 * 160 * 2];
+extern unsigned char lcd_digital_tube_check(unsigned int delay_xms);
 
 static void form_config(void) {
+    lcd_key_config();
     gui_clear_screen(C_WHITE);
     gui_printf(22, 74, C_DARK_GREEN, C_WHITE, "Calibrating...");
     HAL_IWDG_Refresh(&hiwdg1);
@@ -41,6 +43,7 @@ _Noreturn void gui_task(void *parameters) {
         Form_UpdateEvent();
         if (lcd_off_flag != 1)
             lcd_refresh_once(lcd_frame_buffer);
-        delayms(100);
+        if (lcd_digital_tube_check(100) == 0)
+            vTaskDelete(NULL);
     }
 }
diff --git a/user/main.c b/user/main.c
index 7199a11..89c053c 100644
--- a/user/main.c
+++ b/user/main.c
@@ -1,25 +1,10 @@
 #include "main.h"
 
-void initialize_task(void *parameters) {
-    (void) parameters;
+unsigned char lcd_digital_tube_check(unsigned int delay_xms) {
     BaseType_t xReturned;
-    rtc_config();
-    filter_config();
-    dma_config();
-    ramecc_config();
-    usart1_config();
-    usart2_config();
-    error_check();
-    adc_config();
-    dac_config();
-    spi1_config();
-    spi3_config();
-    w25qxx_config();
-    filesystem_config();
-    calibrate_params_config();
-    iwdg_config();
-
-    if (gpio_use_lcd() == 1) {
+    unsigned char using_lcd_flag = gpio_use_lcd();
+    HAL_IWDG_Refresh(&hiwdg1);
+    if (using_lcd_flag == 1) {
         xReturned = xTaskCreate((TaskFunction_t) gui_task,
                                 (const char *) "GUITask",
                                 (configSTACK_DEPTH_TYPE) 2048,
@@ -38,6 +23,30 @@ void initialize_task(void *parameters) {
         if (xReturned != pdPASS)
             error_handler(__FILE__, __LINE__);
     }
+    delayms(delay_xms);
+    return using_lcd_flag;
+}
+
+void initialize_task(void *parameters) {
+    (void) parameters;
+    BaseType_t xReturned;
+    rtc_config();
+    filter_config();
+    dma_config();
+    ramecc_config();
+    usart1_config();
+    usart2_config();
+    error_check();
+    adc_config();
+    dac_config();
+    spi1_config();
+    spi3_config();
+    w25qxx_config();
+    filesystem_config();
+    calibrate_params_config();
+    iwdg_config();
+
+    lcd_digital_tube_check(1);
 
     xReturned = xTaskCreate((TaskFunction_t) fsm_task,
                             (const char *) "FSMTask",