-//#define SD_CD_1 SBIT(PORTG,3) /* Card detect switch */
-//#define SD_CD_1_IN SBIT(PING,3)
-//#define SD_CD_1_DDR SBIT(DDRG,3)
+#define SD_CD_1 SBIT(PORTG,3) /* Card detect switch */
+#define SD_CD_1_IN SBIT(PING,3)
+#define SD_CD_1_DDR SBIT(DDRG,3)