diff --git a/.config b/.config
index e176000..2781a7f 100644
--- a/.config
+++ b/.config
@@ -209,7 +209,9 @@ CONFIG_RT_USING_PWM=y
 # CONFIG_RT_USING_MTD_NOR is not set
 # CONFIG_RT_USING_MTD_NAND is not set
 # CONFIG_RT_USING_PM is not set
-# CONFIG_RT_USING_RTC is not set
+CONFIG_RT_USING_RTC=y
+# CONFIG_RT_USING_ALARM is not set
+CONFIG_RT_USING_SOFT_RTC=y
 CONFIG_RT_USING_SDIO=y
 CONFIG_RT_SDIO_STACK_SIZE=512
 CONFIG_RT_SDIO_THREAD_PRIORITY=15
diff --git a/dayandnight/myproject.c b/dayandnight/myproject.c
index 83c7113..7c767df 100644
--- a/dayandnight/myproject.c
+++ b/dayandnight/myproject.c
@@ -159,7 +159,7 @@ void test_lcd()
     while(1)
     {
         tmp_payload();
-        rt_thread_mdelay(1000);
+        rt_thread_mdelay(100);
     }
 }
 MSH_CMD_EXPORT(test_lcd, run my project);
diff --git a/rtconfig.h b/rtconfig.h
index 20f569f..f748c13 100644
--- a/rtconfig.h
+++ b/rtconfig.h
@@ -131,6 +131,8 @@
 #define RT_USING_I2C
 #define RT_USING_I2C_BITOPS
 #define RT_USING_PWM
+#define RT_USING_RTC
+#define RT_USING_SOFT_RTC
 #define RT_USING_SDIO
 #define RT_SDIO_STACK_SIZE 512
 #define RT_SDIO_THREAD_PRIORITY 15