diff --git a/bsp/lm3s8962/rtconfig.h b/bsp/lm3s8962/rtconfig.h
index c3b3bc8369..22a24106ab 100644
--- a/bsp/lm3s8962/rtconfig.h
+++ b/bsp/lm3s8962/rtconfig.h
@@ -153,4 +153,6 @@
 /* the size of each pbuf in the pbuf pool. */
 #define RT_LWIP_PBUF_POOL_BUFSIZE		1500
 
+#define RT_USING_LIBC
+#define RT_USING_LWIP141
 #endif
diff --git a/bsp/sam7x/sam7x_rom.ld b/bsp/sam7x/sam7x_rom.ld
index 2ceb8ee9e1..a677e2ebaa 100644
--- a/bsp/sam7x/sam7x_rom.ld
+++ b/bsp/sam7x/sam7x_rom.ld
@@ -4,7 +4,7 @@ MEMORY
 {
     CODE (rx) : ORIGIN = 0x00100000, LENGTH = 0x00040000
     /* DATA (rw) : ORIGIN = 0x00200000, LENGTH = 0x00010000 */
-    DATA (rw) : ORIGIN = 0x00204000, LENGTH = 0x0000C000
+    DATA (rw) : ORIGIN = 0x00203000, LENGTH = 0x0000D000
 }
 ENTRY(_start)
 SECTIONS
diff --git a/bsp/stm32f107/rtconfig.h b/bsp/stm32f107/rtconfig.h
index f6e28a521a..c4cd0c8368 100644
--- a/bsp/stm32f107/rtconfig.h
+++ b/bsp/stm32f107/rtconfig.h
@@ -163,4 +163,5 @@
 // <bool name="RT_USING_BSP_CMSIS" description="Using CMSIS in BSP" default="true" />
 // #define RT_USING_BSP_CMSIS
 
+#define RT_USING_LIBC
 #endif