diff --git a/bsp/gd32/arm/gd32103c-eval/rtconfig.py b/bsp/gd32/arm/gd32103c-eval/rtconfig.py
index 76aab52412..74fe465518 100644
--- a/bsp/gd32/arm/gd32103c-eval/rtconfig.py
+++ b/bsp/gd32/arm/gd32103c-eval/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/gd32/arm/gd32105c-eval/rtconfig.py b/bsp/gd32/arm/gd32105c-eval/rtconfig.py
index 76aab52412..74fe465518 100644
--- a/bsp/gd32/arm/gd32105c-eval/rtconfig.py
+++ b/bsp/gd32/arm/gd32105c-eval/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/gd32/arm/gd32105r-start/rtconfig.py b/bsp/gd32/arm/gd32105r-start/rtconfig.py
index 7c11694b78..8bbe8957ad 100644
--- a/bsp/gd32/arm/gd32105r-start/rtconfig.py
+++ b/bsp/gd32/arm/gd32105r-start/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/gd32/arm/gd32107c-eval/rtconfig.py b/bsp/gd32/arm/gd32107c-eval/rtconfig.py
index 76aab52412..74fe465518 100644
--- a/bsp/gd32/arm/gd32107c-eval/rtconfig.py
+++ b/bsp/gd32/arm/gd32107c-eval/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/gd32/arm/gd32205r-start/rtconfig.py b/bsp/gd32/arm/gd32205r-start/rtconfig.py
index 76aab52412..74fe465518 100644
--- a/bsp/gd32/arm/gd32205r-start/rtconfig.py
+++ b/bsp/gd32/arm/gd32205r-start/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/gd32/arm/gd32207i-eval/rtconfig.py b/bsp/gd32/arm/gd32207i-eval/rtconfig.py
index 76aab52412..74fe465518 100644
--- a/bsp/gd32/arm/gd32207i-eval/rtconfig.py
+++ b/bsp/gd32/arm/gd32207i-eval/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/gd32/arm/gd32303c-start/rtconfig.py b/bsp/gd32/arm/gd32303c-start/rtconfig.py
index 6f74f7c0b9..91f5b13925 100644
--- a/bsp/gd32/arm/gd32303c-start/rtconfig.py
+++ b/bsp/gd32/arm/gd32303c-start/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/gd32/arm/gd32303e-eval/rtconfig.py b/bsp/gd32/arm/gd32303e-eval/rtconfig.py
index 6f74f7c0b9..91f5b13925 100644
--- a/bsp/gd32/arm/gd32303e-eval/rtconfig.py
+++ b/bsp/gd32/arm/gd32303e-eval/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/gd32/arm/gd32305r-start/rtconfig.py b/bsp/gd32/arm/gd32305r-start/rtconfig.py
index 6f74f7c0b9..91f5b13925 100644
--- a/bsp/gd32/arm/gd32305r-start/rtconfig.py
+++ b/bsp/gd32/arm/gd32305r-start/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/gd32/arm/gd32307e-start/rtconfig.py b/bsp/gd32/arm/gd32307e-start/rtconfig.py
index 6f74f7c0b9..91f5b13925 100644
--- a/bsp/gd32/arm/gd32307e-start/rtconfig.py
+++ b/bsp/gd32/arm/gd32307e-start/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/gd32/arm/gd32407v-start/rtconfig.py b/bsp/gd32/arm/gd32407v-start/rtconfig.py
index 7c1b52143c..9b8be8b91d 100644
--- a/bsp/gd32/arm/gd32407v-start/rtconfig.py
+++ b/bsp/gd32/arm/gd32407v-start/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/gd32/arm/gd32450z-eval/rtconfig.py b/bsp/gd32/arm/gd32450z-eval/rtconfig.py
index 34a3ca9974..81ad46ee79 100644
--- a/bsp/gd32/arm/gd32450z-eval/rtconfig.py
+++ b/bsp/gd32/arm/gd32450z-eval/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/hc32/ev_hc32f460_lqfp100_v2/rtconfig.py b/bsp/hc32/ev_hc32f460_lqfp100_v2/rtconfig.py
index 6545163d85..734f7beca4 100644
--- a/bsp/hc32/ev_hc32f460_lqfp100_v2/rtconfig.py
+++ b/bsp/hc32/ev_hc32f460_lqfp100_v2/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/mm32/mm32f3270-100ask-pitaya/SConstruct b/bsp/mm32/mm32f3270-100ask-pitaya/SConstruct
index 01bcd4d2e4..5da698a41a 100644
--- a/bsp/mm32/mm32f3270-100ask-pitaya/SConstruct
+++ b/bsp/mm32/mm32f3270-100ask-pitaya/SConstruct
@@ -26,7 +26,7 @@ env = Environment(tools = ['mingw'],
     LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
 env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
 
-if rtconfig.PLATFORM == 'iar':
+if rtconfig.PLATFORM == 'iccarm':
     env.Replace(CCCOM = ['$CC $CFLAGS $CPPFLAGS $_CPPDEFFLAGS $_CPPINCFLAGS -o $TARGET $SOURCES'])
     env.Replace(ARFLAGS = [''])
     env.Replace(LINKCOM = env["LINKCOM"] + ' --map rt-thread.map')
diff --git a/bsp/mm32/mm32f3270-100ask-pitaya/rtconfig.py b/bsp/mm32/mm32f3270-100ask-pitaya/rtconfig.py
index 8460077322..0c161f9756 100644
--- a/bsp/mm32/mm32f3270-100ask-pitaya/rtconfig.py
+++ b/bsp/mm32/mm32f3270-100ask-pitaya/rtconfig.py
@@ -22,7 +22,7 @@ elif CROSS_TOOL == 'keil':
     PLATFORM    = 'armcc'
     EXEC_PATH   = r'C:/Keil_v5'
 elif CROSS_TOOL == 'iar':
-    PLATFORM    = 'iar'
+    PLATFORM    = 'iccarm'
     EXEC_PATH   = r'C:/Program Files (x86)/IAR Systems/Embedded Workbench 8.2'
 
 if os.getenv('RTT_EXEC_PATH'):
@@ -127,7 +127,7 @@ elif PLATFORM == 'armclang':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/n32/n32g45xvl-stb/rtconfig.py b/bsp/n32/n32g45xvl-stb/rtconfig.py
index 71dc5b0aa2..7b53b18e9e 100644
--- a/bsp/n32/n32g45xvl-stb/rtconfig.py
+++ b/bsp/n32/n32g45xvl-stb/rtconfig.py
@@ -93,7 +93,7 @@ elif PLATFORM == 'armcc':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/stm32/stm32f103-100ask-mini/rtconfig.py b/bsp/stm32/stm32f103-100ask-mini/rtconfig.py
index afe3d54b16..d1e49f8cb1 100644
--- a/bsp/stm32/stm32f103-100ask-mini/rtconfig.py
+++ b/bsp/stm32/stm32f103-100ask-mini/rtconfig.py
@@ -128,7 +128,7 @@ elif PLATFORM == 'armclang':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/stm32/stm32f103-100ask-pro/rtconfig.py b/bsp/stm32/stm32f103-100ask-pro/rtconfig.py
index afe3d54b16..d1e49f8cb1 100644
--- a/bsp/stm32/stm32f103-100ask-pro/rtconfig.py
+++ b/bsp/stm32/stm32f103-100ask-pro/rtconfig.py
@@ -128,7 +128,7 @@ elif PLATFORM == 'armclang':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'
diff --git a/bsp/synwit/swm341/rtconfig.py b/bsp/synwit/swm341/rtconfig.py
index ba869870a9..8d449d49b9 100644
--- a/bsp/synwit/swm341/rtconfig.py
+++ b/bsp/synwit/swm341/rtconfig.py
@@ -19,7 +19,7 @@ elif CROSS_TOOL == 'keil':
     PLATFORM    = 'armclang'
     EXEC_PATH   = r'C:/Keil_v5'
 elif CROSS_TOOL == 'iar':
-    PLATFORM    = 'iar'
+    PLATFORM    = 'iccarm'
     EXEC_PATH   = r'C:/Program Files (x86)/IAR Systems/Embedded Workbench 8.0'
 
 if os.getenv('RTT_EXEC_PATH'):
@@ -124,7 +124,7 @@ elif PLATFORM == 'armclang':
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
-elif PLATFORM == 'iar':
+elif PLATFORM == 'iccarm':
     # toolchains
     CC = 'iccarm'
     CXX = 'iccarm'