diff --git a/bsp/Vango/v85xx/Kconfig b/bsp/Vango/v85xx/Kconfig
index df8194d747..db71795081 100644
--- a/bsp/Vango/v85xx/Kconfig
+++ b/bsp/Vango/v85xx/Kconfig
@@ -8,7 +8,7 @@ config BSP_DIR
 config RTT_DIR
     string
     option env="RTT_ROOT"
-    default "../.."
+    default "../../.."
     
 # you can change the RTT_ROOT default: "rt-thread"
 # example : default "F:/git_repositories/rt-thread"
diff --git a/bsp/Vango/v85xx/SConstruct b/bsp/Vango/v85xx/SConstruct
index cab08d4950..394f300b22 100644
--- a/bsp/Vango/v85xx/SConstruct
+++ b/bsp/Vango/v85xx/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
diff --git a/bsp/Vango/v85xxp/Kconfig b/bsp/Vango/v85xxp/Kconfig
index 4e3f2d260d..4adc43f033 100644
--- a/bsp/Vango/v85xxp/Kconfig
+++ b/bsp/Vango/v85xxp/Kconfig
@@ -8,7 +8,7 @@ config BSP_DIR
 config RTT_DIR
     string
     option env="RTT_ROOT"
-    default "../.."
+    default "../../.."
     
 # you can change the RTT_ROOT default: "rt-thread"
 # example : default "F:/git_repositories/rt-thread"
diff --git a/bsp/Vango/v85xxp/SConstruct b/bsp/Vango/v85xxp/SConstruct
index 4c860d1e2b..ac0a9dcd0d 100644
--- a/bsp/Vango/v85xxp/SConstruct
+++ b/bsp/Vango/v85xxp/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
diff --git a/bsp/acm32/acm32f0x0-nucleo/Kconfig b/bsp/acm32/acm32f0x0-nucleo/Kconfig
index cf56d6850b..149af66092 100644
--- a/bsp/acm32/acm32f0x0-nucleo/Kconfig
+++ b/bsp/acm32/acm32f0x0-nucleo/Kconfig
@@ -8,7 +8,7 @@ config BSP_DIR
 config RTT_DIR
     string
     option env="RTT_ROOT"
-    default "../.."
+    default "../../.."
 
 config PKGS_DIR
     string
diff --git a/bsp/acm32/acm32f0x0-nucleo/SConstruct b/bsp/acm32/acm32f0x0-nucleo/SConstruct
index 4b462ce660..8886098e95 100644
--- a/bsp/acm32/acm32f0x0-nucleo/SConstruct
+++ b/bsp/acm32/acm32f0x0-nucleo/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
diff --git a/bsp/acm32/acm32f4xx-nucleo/Kconfig b/bsp/acm32/acm32f4xx-nucleo/Kconfig
index 3053a7980a..f02e680ad7 100644
--- a/bsp/acm32/acm32f4xx-nucleo/Kconfig
+++ b/bsp/acm32/acm32f4xx-nucleo/Kconfig
@@ -8,7 +8,7 @@ config BSP_DIR
 config RTT_DIR
     string
     option env="RTT_ROOT"
-    default "../.."
+    default "../../.."
 
 config PKGS_DIR
     string
diff --git a/bsp/acm32/acm32f4xx-nucleo/SConstruct b/bsp/acm32/acm32f4xx-nucleo/SConstruct
index 817b1be071..09dfa83715 100644
--- a/bsp/acm32/acm32f4xx-nucleo/SConstruct
+++ b/bsp/acm32/acm32f4xx-nucleo/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 from building import *
diff --git a/bsp/at91/at91sam9260/Kconfig b/bsp/at91/at91sam9260/Kconfig
index 23b4eea1d4..61d32c2cc9 100644
--- a/bsp/at91/at91sam9260/Kconfig
+++ b/bsp/at91/at91sam9260/Kconfig
@@ -8,7 +8,7 @@ config BSP_DIR
 config RTT_DIR
     string
     option env="RTT_ROOT"
-    default "../.."
+    default "../../.."
 
 config PKGS_DIR
     string
diff --git a/bsp/at91/at91sam9260/SConstruct b/bsp/at91/at91sam9260/SConstruct
index 32ad8d65fe..31fcc1e822 100644
--- a/bsp/at91/at91sam9260/SConstruct
+++ b/bsp/at91/at91sam9260/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 from building import *
diff --git a/bsp/at91/at91sam9g45/Kconfig b/bsp/at91/at91sam9g45/Kconfig
index 4de0cd0233..2cc06b28fb 100644
--- a/bsp/at91/at91sam9g45/Kconfig
+++ b/bsp/at91/at91sam9g45/Kconfig
@@ -8,9 +8,9 @@ config BSP_DIR
 config RTT_DIR
     string
     option env="RTT_ROOT"
-    default "../.."
+    default "../../.."
     
-# you can change the RTT_ROOT default "../.." to your rtthread_root,
+# you can change the RTT_ROOT default "../../.." to your rtthread_root,
 # example : default "F:/git_repositories/rt-thread"
 
 config PKGS_DIR
diff --git a/bsp/at91/at91sam9g45/SConstruct b/bsp/at91/at91sam9g45/SConstruct
index c9ed1b8c50..1c2d48b42c 100644
--- a/bsp/at91/at91sam9g45/SConstruct
+++ b/bsp/at91/at91sam9g45/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 from building import *
diff --git a/bsp/fujitsu/mb9x/mb9bf500r/SConstruct b/bsp/fujitsu/mb9x/mb9bf500r/SConstruct
index 67d8d9c3a5..5b6608b353 100644
--- a/bsp/fujitsu/mb9x/mb9bf500r/SConstruct
+++ b/bsp/fujitsu/mb9x/mb9bf500r/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 from building import *
diff --git a/bsp/fujitsu/mb9x/mb9bf506r/SConstruct b/bsp/fujitsu/mb9x/mb9bf506r/SConstruct
index 97f374e663..83fa4a0ca9 100644
--- a/bsp/fujitsu/mb9x/mb9bf506r/SConstruct
+++ b/bsp/fujitsu/mb9x/mb9bf506r/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 from building import *
diff --git a/bsp/fujitsu/mb9x/mb9bf568r/SConstruct b/bsp/fujitsu/mb9x/mb9bf568r/SConstruct
index 1725b1f69c..d8380c4595 100644
--- a/bsp/fujitsu/mb9x/mb9bf568r/SConstruct
+++ b/bsp/fujitsu/mb9x/mb9bf568r/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 from building import *
diff --git a/bsp/fujitsu/mb9x/mb9bf618s/SConstruct b/bsp/fujitsu/mb9x/mb9bf618s/SConstruct
index 97f374e663..83fa4a0ca9 100644
--- a/bsp/fujitsu/mb9x/mb9bf618s/SConstruct
+++ b/bsp/fujitsu/mb9x/mb9bf618s/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 from building import *
diff --git a/bsp/loongson/ls1bdev/Kconfig b/bsp/loongson/ls1bdev/Kconfig
index b02aee337a..eff0e211b4 100644
--- a/bsp/loongson/ls1bdev/Kconfig
+++ b/bsp/loongson/ls1bdev/Kconfig
@@ -8,7 +8,7 @@ config BSP_DIR
 config RTT_DIR
     string
     option env="RTT_ROOT"
-    default "../.."
+    default "../../.."
 
 config PKGS_DIR
     string
diff --git a/bsp/loongson/ls1bdev/SConstruct b/bsp/loongson/ls1bdev/SConstruct
index 38fe7234b9..524115edf7 100644
--- a/bsp/loongson/ls1bdev/SConstruct
+++ b/bsp/loongson/ls1bdev/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 from building import *
diff --git a/bsp/loongson/ls1cdev/Kconfig b/bsp/loongson/ls1cdev/Kconfig
index 3fb6e3bbdf..256e23a087 100644
--- a/bsp/loongson/ls1cdev/Kconfig
+++ b/bsp/loongson/ls1cdev/Kconfig
@@ -8,7 +8,7 @@ config BSP_DIR
 config RTT_DIR
     string
     option env="RTT_ROOT"
-    default "../.."
+    default "../../.."
 
 config PKGS_DIR
     string
diff --git a/bsp/loongson/ls1cdev/SConstruct b/bsp/loongson/ls1cdev/SConstruct
index 0efa3f8a04..f185f7fb52 100644
--- a/bsp/loongson/ls1cdev/SConstruct
+++ b/bsp/loongson/ls1cdev/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 from building import *
diff --git a/bsp/loongson/ls2kdev/Kconfig b/bsp/loongson/ls2kdev/Kconfig
index fc2dfe1328..73bdf3eea0 100644
--- a/bsp/loongson/ls2kdev/Kconfig
+++ b/bsp/loongson/ls2kdev/Kconfig
@@ -8,9 +8,9 @@ config BSP_DIR
 config RTT_DIR
     string
     option env="RTT_ROOT"
-    default "../.."
+    default "../../.."
 
-# you can change the RTT_ROOT default "../.." to your rtthread_root,
+# you can change the RTT_ROOT default "../../.." to your rtthread_root,
 # example : default "F:/git_repositories/rt-thread"
 
 config PKGS_DIR
diff --git a/bsp/loongson/ls2kdev/rtconfig.py b/bsp/loongson/ls2kdev/rtconfig.py
index 0988198426..450ea89178 100644
--- a/bsp/loongson/ls2kdev/rtconfig.py
+++ b/bsp/loongson/ls2kdev/rtconfig.py
@@ -6,7 +6,7 @@ CPU ='gs264'
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = '../..'
+    RTT_ROOT = '../../..'
 
 # toolchains options
 CROSS_TOOL  = 'gcc'
diff --git a/bsp/stm32/stm32f207-st-nucleo/Kconfig b/bsp/stm32/stm32f207-st-nucleo/Kconfig
index 924a7509e0..7a400db91f 100644
--- a/bsp/stm32/stm32f207-st-nucleo/Kconfig
+++ b/bsp/stm32/stm32f207-st-nucleo/Kconfig
@@ -8,15 +8,15 @@ config BSP_DIR
 config RTT_DIR
     string
     option env="RTT_ROOT"
-    default "rt-thread"
+    default "../../.."
 
 config PKGS_DIR
     string
     option env="PKGS_ROOT"
     default "packages"
- 
+
 source "$RTT_DIR/Kconfig"
 source "$PKGS_DIR/Kconfig"
-source "libraries/Kconfig"
+source "../libraries/Kconfig"
 source "board/Kconfig"
 
diff --git a/bsp/stm32/stm32f207-st-nucleo/SConstruct b/bsp/stm32/stm32f207-st-nucleo/SConstruct
index 25e11c3060..3b4403a7e4 100644
--- a/bsp/stm32/stm32f207-st-nucleo/SConstruct
+++ b/bsp/stm32/stm32f207-st-nucleo/SConstruct
@@ -7,10 +7,6 @@ if os.getenv('RTT_ROOT'):
 else:
     RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
 
-# set RTT_ROOT
-if not os.getenv("RTT_ROOT"): 
-    RTT_ROOT="rt-thread"
-
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
     from building import *
diff --git a/bsp/yichip/yc3121-pos/Kconfig b/bsp/yichip/yc3121-pos/Kconfig
index 59dcef1b29..e2e7167ac9 100644
--- a/bsp/yichip/yc3121-pos/Kconfig
+++ b/bsp/yichip/yc3121-pos/Kconfig
@@ -8,7 +8,7 @@ config BSP_DIR
 config RTT_DIR
     string
     option env="RTT_ROOT"
-    default "../.."
+    default "../../.."
 
 config PKGS_DIR
     string
diff --git a/bsp/yichip/yc3121-pos/SConstruct b/bsp/yichip/yc3121-pos/SConstruct
index afbbe07947..eca0a786c8 100644
--- a/bsp/yichip/yc3121-pos/SConstruct
+++ b/bsp/yichip/yc3121-pos/SConstruct
@@ -5,7 +5,7 @@ import rtconfig
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
-    RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try: