diff --git a/bsp/nuvoton/numaker-m2354/README.md b/bsp/nuvoton/numaker-m2354/README.md
index 5cc0d34fb8394257d842dccc36ad7e3d46cafb5a..de4e03ad01508e0bd5eaa87eecd197f6c8b48df2 100644
--- a/bsp/nuvoton/numaker-m2354/README.md
+++ b/bsp/nuvoton/numaker-m2354/README.md
@@ -41,7 +41,6 @@ Support GCC, MDK5, IAR IDE/compilers. More information of these compiler version
 
 Notice: 
 (1) Please install Nu-Link_Keil_Driver or Nu-Link_IAR_Driver for development.
-(2) You must remove '--c99' flag in <path/to/rtt>/components/drivers/spi/SConscript before generating MDK5 project file.
 
 ## 3. Program firmware
 ### Step 1:
diff --git a/bsp/nuvoton/numaker-m2354/rtconfig.py b/bsp/nuvoton/numaker-m2354/rtconfig.py
index aba7250bc3c871633582a88c6be08f883382d772..2a59f1a4f0da2cdd59b28d30a7f9b64224488987 100644
--- a/bsp/nuvoton/numaker-m2354/rtconfig.py
+++ b/bsp/nuvoton/numaker-m2354/rtconfig.py
@@ -15,7 +15,7 @@ if  CROSS_TOOL == 'gcc':
 	PLATFORM 	= 'gcc'
 	EXEC_PATH 	= r'C:\Program Files (x86)\GNU Tools ARM Embedded\6 2017-q1-update\bin'
 elif CROSS_TOOL == 'keil':
-	PLATFORM 	= 'armcc'
+	PLATFORM 	= 'armclang'
 	EXEC_PATH 	= r'C:\Keil_v5'
 elif CROSS_TOOL == 'iar':
 	PLATFORM 	= 'iar'
@@ -56,9 +56,9 @@ if PLATFORM == 'gcc':
 
     POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
 
-elif PLATFORM == 'armcc':
+elif PLATFORM == 'armclang':
     # toolchains
-    CC = 'armcc'
+    CC = 'armclang'
     AS = 'armasm'
     AR = 'armar'
     LINK = 'armlink'
diff --git a/libcpu/arm/cortex-m23/SConscript b/libcpu/arm/cortex-m23/SConscript
index 28af7ba6514ce7362f87b75733b7f1b63e6b6b84..a4535c03ea2d49aa4997d783f59384169688c3fd 100644
--- a/libcpu/arm/cortex-m23/SConscript
+++ b/libcpu/arm/cortex-m23/SConscript
@@ -10,6 +10,8 @@ CPPPATH = [cwd]
 
 if rtconfig.PLATFORM == 'armcc':
     src += Glob('*_rvds.S')
+elif rtconfig.PLATFORM == 'armclang':
+    src += Glob('*_rvds.S')
 
 if rtconfig.PLATFORM == 'gcc':
     src += Glob('*_init.S')