diff --git a/stm32f103_lcds_st75256/Core/Src/app_main.c b/stm32f103_lcds_st75256/Core/Src/app_main.c
index 4911bac..954f504 100644
--- a/stm32f103_lcds_st75256/Core/Src/app_main.c
+++ b/stm32f103_lcds_st75256/Core/Src/app_main.c
@@ -14,23 +14,26 @@ void app_main(void)
 {
   bsp_lcd_init_regs();
 
-#if BSP_LCD_4GRAY_ENABLE
-  app_play_badapple();
-#else
+#if !BSP_LCD_4GRAY_ENABLE
   app_fatfs_test();
+  HAL_Delay(2000);
 #endif
 
+  app_play_badapple();
+
   while (1) {
     HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin);
     HAL_Delay(500);
   }
 }
 
-#if BSP_LCD_4GRAY_ENABLE
-
 #define APP_BADAPPLE_X_PIXELS 192
 #define APP_BADAPPLE_Y_PIXELS 128
+#if BSP_LCD_4GRAY_ENABLE
 #define APP_BADAPPLE_FRAME_SIZE ((APP_BADAPPLE_X_PIXELS) * (APP_BADAPPLE_Y_PIXELS) / 4) //4灰
+#else
+#define APP_BADAPPLE_FRAME_SIZE ((APP_BADAPPLE_X_PIXELS) * (APP_BADAPPLE_Y_PIXELS) / 8) //单色
+#endif
 
 volatile uint8_t next_frame = 0;
 
@@ -53,7 +56,11 @@ void app_play_badapple(void)
 
   while (1) {
     FIL file;
-    f_result = f_open(&file, "BadApple.bin", FA_READ);
+#if BSP_LCD_4GRAY_ENABLE
+    f_result = f_open(&file, "/ba_4gray.bin", FA_READ);
+#else
+    f_result = f_open(&file, "/ba_mono.bin", FA_READ);
+#endif
     if (f_result != FR_OK) {
       return;
     }
@@ -80,8 +87,7 @@ void app_play_badapple(void)
   }
 }
 
-#else
-
+#if !BSP_LCD_4GRAY_ENABLE
 void app_fatfs_test(void)
 {
   const char *path = "/rwtest.bin";
@@ -189,6 +195,8 @@ void app_fatfs_test(void)
   } else {
     bsp_lcd_show_6_8_string(line_count, char_count * 6, " mismatches!");
   }
+
+  f_unmount("/");
 }
 
 #endif
diff --git a/stm32f103_lcds_st75256/Core/Src/bsp_sd_spi.c b/stm32f103_lcds_st75256/Core/Src/bsp_sd_spi.c
index f2400bf..0ed290d 100644
--- a/stm32f103_lcds_st75256/Core/Src/bsp_sd_spi.c
+++ b/stm32f103_lcds_st75256/Core/Src/bsp_sd_spi.c
@@ -181,7 +181,7 @@ bsp_sd_error_t bsp_sd_init(void)
     sd_write_read_byte(0xFF); //在MOSI上发送不少于74个脉冲
   }
 
-  card_info.card_type = bsp_sd_type_unknown; //复位卡版本
+  memset(&card_info, 0, sizeof(card_info)); //复位卡信息结构体
 
   uint8_t r1_response;
   uint32_t timeout = SD_WAIT_CMD_RESP_TIMEOUT;
diff --git a/stm32f103_lcds_st75256/Core/Src/diskio.c b/stm32f103_lcds_st75256/Core/Src/diskio.c
index 5dc944e..60620c7 100644
--- a/stm32f103_lcds_st75256/Core/Src/diskio.c
+++ b/stm32f103_lcds_st75256/Core/Src/diskio.c
@@ -104,6 +104,7 @@ DRESULT disk_write (
 #endif
 
 
+
 /*-----------------------------------------------------------------------*/
 /* Miscellaneous Functions                                               */
 /*-----------------------------------------------------------------------*/
@@ -121,8 +122,14 @@ DRESULT disk_ioctl (
 	case GET_BLOCK_SIZE:
 		*(DWORD *)buff = BSP_SD_BLOCK_SIZE;
 		return RES_OK;
+    case GET_SECTOR_COUNT:
+        bsp_card_info_t card_info;
+        bsp_sd_spi_get_card_info(&card_info);
+        *(DWORD *)buff = card_info.sector_count;
+        break;
 	default:
 		return RES_PARERR;
 	}
-}
 
+    return RES_PARERR;
+}
diff --git a/stm32f103_lcds_st75256/badapple_192x128_4gray.bin.zip b/stm32f103_lcds_st75256/badapple_192x128_4gray.bin.zip
new file mode 100644
index 0000000..7851aec
Binary files /dev/null and b/stm32f103_lcds_st75256/badapple_192x128_4gray.bin.zip differ
diff --git a/stm32f103_lcds_st75256/badapple_192x128_mono.bin.zip b/stm32f103_lcds_st75256/badapple_192x128_mono.bin.zip
new file mode 100644
index 0000000..0c50ea2
Binary files /dev/null and b/stm32f103_lcds_st75256/badapple_192x128_mono.bin.zip differ