diff --git a/bsp/k210/.config b/bsp/k210/.config
index d1279d3b74e0db6de207947d7ede9bd3a0122926..c69688645917bd88fd06eda4ec4eb22b583fced2 100644
--- a/bsp/k210/.config
+++ b/bsp/k210/.config
@@ -128,7 +128,7 @@ CONFIG_RT_SERIAL_USING_DMA=y
 # CONFIG_RT_USING_HWTIMER is not set
 # CONFIG_RT_USING_CPUTIME is not set
 # CONFIG_RT_USING_I2C is not set
-CONFIG_RT_USING_PIN=y
+# CONFIG_RT_USING_PIN is not set
 # CONFIG_RT_USING_ADC is not set
 # CONFIG_RT_USING_PWM is not set
 # CONFIG_RT_USING_MTD_NOR is not set
@@ -326,10 +326,6 @@ CONFIG_PKG_KENDRYTE_SDK_VER="v0.5.2"
 # CONFIG_PKG_USING_DSTR is not set
 # CONFIG_PKG_USING_TINYFRAME is not set
 
-#
-# sample package
-#
-
 #
 # samples: kernel and components samples
 #
@@ -337,10 +333,6 @@ CONFIG_PKG_KENDRYTE_SDK_VER="v0.5.2"
 # CONFIG_PKG_USING_FILESYSTEM_SAMPLES is not set
 # CONFIG_PKG_USING_NETWORK_SAMPLES is not set
 # CONFIG_PKG_USING_PERIPHERAL_SAMPLES is not set
-
-#
-# example package: hello
-#
 # CONFIG_PKG_USING_HELLO is not set
 
 #
diff --git a/bsp/k210/rtconfig.h b/bsp/k210/rtconfig.h
index 629a34f31c0227a17c7a5d267dc8ca17262e1cf0..bb101c8c8dae1cdbad7e9c327dc281e86cd25077 100644
--- a/bsp/k210/rtconfig.h
+++ b/bsp/k210/rtconfig.h
@@ -86,7 +86,6 @@
 #define RT_PIPE_BUFSZ 512
 #define RT_USING_SERIAL
 #define RT_SERIAL_USING_DMA
-#define RT_USING_PIN
 
 /* Using WiFi */
 
@@ -158,14 +157,9 @@
 /* miscellaneous packages */
 
 
-/* sample package */
-
 /* samples: kernel and components samples */
 
 
-/* example package: hello */
-
-
 /* Privated Packages of RealThread */
 
 
diff --git a/bsp/k210/rtconfig.py b/bsp/k210/rtconfig.py
index c2df896f4c636e3c3277261bb6b8a2c9cb4a302d..b159d6fb9ef39921eb79ecfe590e6a1d414a90c9 100644
--- a/bsp/k210/rtconfig.py
+++ b/bsp/k210/rtconfig.py
@@ -8,7 +8,7 @@ CROSS_TOOL  ='gcc'
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = r'rt-thread'
+    RTT_ROOT = r'../..'
 
 if os.getenv('RTT_CC'):
     CROSS_TOOL = os.getenv('RTT_CC')