diff --git a/Ubiquitous/RT_Thread/bsp/k210/.config b/Ubiquitous/RT_Thread/bsp/k210/.config
index c471c072d..e38931055 100644
--- a/Ubiquitous/RT_Thread/bsp/k210/.config
+++ b/Ubiquitous/RT_Thread/bsp/k210/.config
@@ -12,6 +12,7 @@ CONFIG_BOARD_K210_EVB=y
 # RT-Thread Kernel
 #
 CONFIG_RT_NAME_MAX=8
+# CONFIG_RT_USING_BIG_ENDIAN is not set
 # CONFIG_RT_USING_ARCH_DATA_TYPE is not set
 CONFIG_RT_USING_SMP=y
 CONFIG_RT_CPUS_NR=2
@@ -102,7 +103,8 @@ CONFIG_RT_MAIN_THREAD_PRIORITY=10
 #
 # C++ features
 #
-# CONFIG_RT_USING_CPLUSPLUS is not set
+CONFIG_RT_USING_CPLUSPLUS=y
+# CONFIG_RT_USING_CPLUSPLUS11 is not set
 
 #
 # Command shell
@@ -185,7 +187,9 @@ CONFIG_RT_USING_PIN=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 is not set
 # CONFIG_RT_USING_SDIO is not set
 CONFIG_RT_USING_SPI=y
 # CONFIG_RT_USING_QSPI is not set
@@ -268,8 +272,7 @@ CONFIG_RT_USING_SAL=y
 # protocol stack implement
 #
 CONFIG_SAL_USING_LWIP=y
-# CONFIG_SAL_USING_POSIX is not set
-CONFIG_SAL_SOCKETS_NUM=16
+CONFIG_SAL_USING_POSIX=y
 
 #
 # Network interface device
@@ -472,6 +475,7 @@ CONFIG_MAIN_KTASK_STACK_SIZE=1024
 # knowing app
 #
 CONFIG_APPLICATION_KNOWING=y
+CONFIG_APP_MNIST=y
 CONFIG_FACE_DETECT=y
 # CONFIG_INSTRUSION_DETECT is not set
 # CONFIG_HELMET_DETECT is not set
@@ -508,7 +512,10 @@ CONFIG_SENSOR_DEVICE_D124_DEV="/dev/uar2"
 # CONFIG_SENSOR_HUMIDITY is not set
 # CONFIG_SUPPORT_CONNECTION_FRAMEWORK is not set
 CONFIG_SUPPORT_KNOWING_FRAMEWORK=y
-# CONFIG_USING_TENSORFLOWLITEMICRO is not set
+CONFIG_USING_TENSORFLOWLITEMICRO=y
+CONFIG_USING_TENSORFLOWLITEMICRO_NORMAL=y
+# CONFIG_USING_TENSORFLOWLITEMICRO_CMSISNN is not set
+# CONFIG_USING_TENSORFLOWLITEMICRO_DEMOAPP is not set
 CONFIG_USING_KPU_POSTPROCESSING=y
 CONFIG_USING_YOLOV2=y
 # CONFIG_USING_KNOWING_FILTER is not set
diff --git a/Ubiquitous/RT_Thread/bsp/k210/rtconfig.h b/Ubiquitous/RT_Thread/bsp/k210/rtconfig.h
index c0c6bb3cf..dd0ddb421 100644
--- a/Ubiquitous/RT_Thread/bsp/k210/rtconfig.h
+++ b/Ubiquitous/RT_Thread/bsp/k210/rtconfig.h
@@ -71,6 +71,7 @@
 
 /* C++ features */
 
+#define RT_USING_CPLUSPLUS
 
 /* Command shell */
 
@@ -124,6 +125,7 @@
 #define RT_SERIAL_USING_DMA
 #define RT_SERIAL_RB_BUFSZ 64
 #define RT_USING_PIN
+#define RT_USING_RTC
 #define RT_USING_SPI
 #define RT_USING_SPI_MSD
 #define RT_USING_SFUD
@@ -178,7 +180,7 @@
 /* protocol stack implement */
 
 #define SAL_USING_LWIP
-#define SAL_SOCKETS_NUM 16
+#define SAL_USING_POSIX
 
 /* Network interface device */
 
@@ -323,6 +325,7 @@
 /* knowing app */
 
 #define APPLICATION_KNOWING
+#define APP_MNIST
 #define FACE_DETECT
 
 /* sensor app */
@@ -342,6 +345,8 @@
 #define SENSOR_QUANTITY_D124_VOICE "voice_1"
 #define SENSOR_DEVICE_D124_DEV "/dev/uar2"
 #define SUPPORT_KNOWING_FRAMEWORK
+#define USING_TENSORFLOWLITEMICRO
+#define USING_TENSORFLOWLITEMICRO_NORMAL
 #define USING_KPU_POSTPROCESSING
 #define USING_YOLOV2
 
diff --git a/Ubiquitous/RT_Thread/rt-thread b/Ubiquitous/RT_Thread/rt-thread
index 06fdc108b..0b6b8b008 160000
--- a/Ubiquitous/RT_Thread/rt-thread
+++ b/Ubiquitous/RT_Thread/rt-thread
@@ -1 +1 @@
-Subproject commit 06fdc108b420f34044a132a19c9adbebf86a7a90
+Subproject commit 0b6b8b0088dd6aa69d1533e7187e670c5820e0f8